- When power switch on (IG), total misfire count of all cylinders in last driving cycle is displayed.
- While engine is running, total misfire count of all cylinders in current driving cycle is displayed.
| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM1000000026EFP |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [09/2022 - ] |
| Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P030000,P030027,P030085-P030400; Random/Multiple Cylinder Misfire Detected; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] | ||
|
DTC |
P030000 |
Random/Multiple Cylinder Misfire Detected |
|
DTC |
P030027 |
Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold |
|
DTC |
P030085 |
Random / Multiple Cylinder Misfire Detected (Over Temperature) Signal Above Allowable Range |
|
DTC |
P030100 |
Cylinder 1 Misfire Detected |
|
DTC |
P030200 |
Cylinder 2 Misfire Detected |
|
DTC |
P030300 |
Cylinder 3 Misfire Detected |
|
DTC |
P030400 |
Cylinder 4 Misfire Detected |
DESCRIPTION
When the engine misfires, high concentrations of hydrocarbons (HC) enter the exhaust gas. Extremely high hydrocarbon concentration levels can cause an increase in exhaust emission levels. Extremely high concentrations of hydrocarbons can also cause increases in the three-way catalytic converter temperature, which may cause damage to the three-way catalytic converter. To prevent this increase in emissions and to limit the possibility of thermal damage, the ECM monitors the misfire count. When the temperature of the three-way catalytic converter reaches the point of thermal degradation, the ECM blinks the MIL. To monitor misfires, the ECM uses both the camshaft position sensor and the crankshaft position sensor. The camshaft position sensor is used to identify any misfiring cylinders and the crankshaft position sensor is used to measure variations in the crankshaft rotation speed. Misfires are counted when the crankshaft rotation speed variations exceed predetermined thresholds. If the misfire count exceeds the threshold levels, and could cause emission control system performance deterioration, the ECM illuminates the MIL and stores a DTC.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
|
P030000 |
Random/Multiple Cylinder Misfire Detected |
Simultaneous misfiring of several cylinders occurs and one of the following conditions is met (2 trip detection logic):
|
|
Comes on/Blinks* *: The MIL flashes when a catalyst-damaging misfire is detected. |
DTC stored |
|
|
P030027 |
Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold |
An emission deterioration misfire occurs (2 trip detection logic). |
|
Comes on |
DTC stored |
|
|
P030085 |
Random / Multiple Cylinder Misfire Detected (Over Temperature) Signal Above Allowable Range |
A misfire occurs that may damage the three-way catalytic converter (2 trip detection logic). |
|
Comes on/Blinks* *: The MIL flashes when a catalyst-damaging misfire is detected. |
DTC stored |
|
|
P030100 |
Cylinder 1 Misfire Detected |
Misfiring of a specific cylinder occurs and one of the following conditions is met (2 trip detection logic):
|
|
Comes on/Blinks* *: The MIL flashes when a catalyst-damaging misfire is detected. |
DTC stored |
|
|
P030200 |
Cylinder 2 Misfire Detected |
Misfiring of a specific cylinder occurs and one of the following conditions is met (2 trip detection logic):
|
|
Comes on/Blinks* *: The MIL flashes when a catalyst-damaging misfire is detected. |
DTC stored |
|
|
P030300 |
Cylinder 3 Misfire Detected |
Misfiring of a specific cylinder occurs and one of the following conditions is met (2 trip detection logic):
|
|
Comes on/Blinks* *: The MIL flashes when a catalyst-damaging misfire is detected. |
DTC stored |
|
|
P030400 |
Cylinder 4 Misfire Detected |
Misfiring of a specific cylinder occurs and one of the following conditions is met (2 trip detection logic):
|
|
Comes on/Blinks* *: The MIL flashes when a catalyst-damaging misfire is detected. |
DTC stored |
|
When DTCs for misfiring cylinders are randomly stored, but DTC P030000 is not stored, it indicates that misfires have been detected in different cylinders at different times. DTC P030000 is only stored when several misfiring cylinders are detected at the same time.
MONITOR DESCRIPTION
The ECM illuminates the MIL and stores a DTC when either one of the following conditions, which could cause emission deterioration, is detected (2 trip detection logic).
- Within the first 1000 crankshaft revolutions after the engine starts, an excessive number of misfires (approximately 10 to 70 misfires per 1000 crankshaft revolutions) occurs once.
The ECM flashes the MIL (immediate detection logic) and stores a DTC (2 trip detection logic) when either one of the following conditions, which could cause damage to the three-way catalytic converter, is detected.
- At a high engine speed, a sufficient amount of misfires to damage the catalyst occurring within 200 crankshaft revolutions is detected once.
- At a normal engine speed, a sufficient amount of misfires to damage the catalyst occurring within 200 crankshaft revolutions is detected 3 times.
MONITOR STRATEGY
|
Related DTCs |
P0300: Multiple cylinder misfire P0301: Cylinder 1 misfire P0302: Cylinder 2 misfire P0303: Cylinder 3 misfire P0304: Cylinder 4 misfire |
|
Required Sensors/Components (Main) |
Crankshaft position sensor Camshaft position sensor |
|
Required Sensors/Components (Related) |
Engine coolant temperature Intake air temperature sensor (mass air flow meter sub-assembly) Mass air flow meter sub-assembly |
|
Frequency of Operation |
Continuous |
|
Duration |
1000 crankshaft revolutions (soon after engine is started: 1 time, other 4 times) (Emission-related misfire) 200 crankshaft revolutions (1 or 3 times) (Catalyst-damaging misfire) |
|
MIL Operation |
2 driving cycles: Emission-related misfire MIL flashes immediate: Catalyst-damaging misfire |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
Misfire
|
Monitor runs whenever the following DTCs are not stored |
P0016 (VVT system - misalignment) P0101, P0102, P0103 (Mass air flow meter) P0107, P0108 (Manifold absolute pressure) P0112, P0113 (Intake air temperature sensor) P0117, P0118 (Engine coolant temperature sensor) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P0125 (Insufficient coolant temperature for closed loop fuel control) P0327, P0328 (Knock control sensor) P0335 (Crankshaft position sensor) P0340, P0342, P0343 (Camshaft position sensor) P0351 - P0354 (Igniter) |
|
Auxiliary battery voltage |
8 V or higher |
|
VVT system |
Not operated by scan tool |
|
Engine speed |
5500 rpm or less |
|
Either of the following conditions is met |
(a) or (b) |
|
(a) Engine coolant temperature at engine start |
Higher than -7°C (19°F) |
|
(b) Engine coolant temperature |
Higher than 20°C (68°F) |
|
Fuel cut |
Off |
Monitor Period of Emission-related Misfire
|
First 1000 revolutions after engine start, or during check mode |
Crankshaft 1000 revolutions |
|
Except above |
Crankshaft 1000 revolutions x 4 |
Monitor Period of Catalyst-damaging Misfire (MIL Blinks)
|
All of the following conditions 1, 2, 3 and 4 are met |
Crankshaft 200 revolutions x 3 |
|
Except above (MIL blinks immediately) |
Crankshaft 200 revolutions |
|
1. Driving cycles |
1st |
|
2. Check mode |
Off |
|
3. Engine speed |
Less than 2900 rpm |
|
4. Engine load |
Less than 58% |
Misfire for Mexico Models
|
Monitor runs whenever the following DTCs are not stored |
P0016 (VVT system - misalignment) P0102, P0103 (Mass air flow meter) P0107, P0108 (Manifold absolute pressure) P0112, P0113 (Intake air temperature sensor) P0117, P0118 (Engine coolant temperature sensor) P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor) P0327, P0328 (Knock control sensor) P0335 (Crankshaft position sensor) P0340, P0342, P0343 (Camshaft position sensor) P0351 - P0354 (Igniter) |
|
Auxiliary battery voltage |
8 V or higher |
|
VVT system |
Not operated by scan tool |
|
Engine speed |
4500 rpm or less |
|
Either or the following conditions is met |
(a) or (b) |
|
(a) Engine coolant temprature at engine start |
Higher than -7°C (19°F) |
|
(b) Engine coolant temprature |
Higher than 20°C (68°F) |
|
Fuel cut |
Off |
Monitor Period of Emission-related Misfire for Mexico Models
|
Monitor Period |
Crankshaft 1000 revolutions x 4 |
Monitor Period of Catalyst-damaging Misfire (MIL Blinks) for Mexico Models
|
Monitor Period |
Crankshaft 200 revolutions x 3 |
TYPICAL MALFUNCTION THRESHOLDS
Monitor Period of Emission-related Misfire
|
Misfire rate |
2% or higher |
Monitor Period of Catalyst-damaging Misfire (MIL Blinks)
|
Number of misfires per 200 revolutions |
108 or more (varies with engine speed and engine load) |
Monitor Period of Emission-related Misfire for Mexico Models
|
Misfire rate |
4% or higher |
Monitor Period of Catalyst-damaging Misfire (MIL Blinks) for Mexico Models
|
Number of misfires per 200 revolutions |
108 or more (varies with intake air amount and engine speed) |
MONITOR RESULT
Refer to detailed information in Checking Monitor Status.
Click here
![2020 - 2025 MY Corolla Corolla HV [01/2019 - ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: CHECKING MONITOR STATUS](/t3Portal/stylegraphics/info.gif)
P0300: Misfire / EWMA MISFIRE
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A1 |
$0B |
Multiply by 1 |
Count |
Total EWMA* misfire count of all cylinders in last ten driving cycles |
P0300: Misfire / MISFIRE RATE
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A1 |
$0C |
Multiply by 1 |
Count |
|
P0301: Misfire / EWMA MISFIRE1
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A2 |
$0B |
Multiply by 1 |
Count |
Total EWMA* misfire count of cylinder 1 in last ten driving cycles |
P0301: Misfire / MISFIRE RATE1
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A2 |
$0C |
Multiply by 1 |
Count |
|
P0302: Misfire / EWMA MISFIRE2
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A3 |
$0B |
Multiply by 1 |
Count |
Total EWMA* misfire count of cylinder 2 in last ten driving cycles |
P0302: Misfire / MISFIRE RATE2
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A3 |
$0C |
Multiply by 1 |
Count |
|
P0303: Misfire / EWMA MISFIRE3
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A4 |
$0B |
Multiply by 1 |
Count |
Total EWMA* misfire count of cylinder 3 in last ten driving cycles |
P0303: Misfire / MISFIRE RATE3
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A4 |
$0C |
Multiply by 1 |
Count |
|
P0304: Misfire / EWMA MISFIRE4
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A5 |
$0B |
Multiply by 1 |
Count |
Total EWMA* misfire count of cylinder 4 in last ten driving cycles |
P0304: Misfire / MISFIRE RATE4
|
Monitor ID |
Test ID |
Scaling |
Unit |
Description |
|---|---|---|---|---|
|
$A5 |
$0C |
Multiply by 1 |
Count |
|
HINT:
*: EWMA (Exponential Weighted Moving Average) misfire counts for last 10 driving cycles (calculated) Calculation: 0.1 x (current counts) + 0.9 x (previous average)
Initial value for (previous average) = 0
CONFIRMATION DRIVING PATTERN
HINT:
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Permanent misfire and fuel system DTCs can only be cleared when performing the universal trip driving pattern when no malfunction is detected.
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Record the DTC(s) and freeze frame data.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for at least 30 seconds.
- Turn the power switch on (IG).
- Turn the Techstream on.
-
Put the engine in Inspection Mode (Maintenance Mode).
Click here
HINT:
Do not start the engine.
-
Using the Techstream, change the ECM from normal mode to check mode.
Click here
- Start the engine.
- Read the misfire counts of each cylinder (Misfire Count Cylinder #1 to Misfire Count Cylinder #4) with the engine idling. If a value is displayed for any misfire count, skip the following confirmation driving pattern.
-
Drive the vehicle so that the vehicle conditions displayed in Misfire RPM and Misfire Load of the Data List are the same as the freeze frame data. Perform this step several times.
HINT:
In order to store misfire DTCs, it is necessary to operate the vehicle for the period of time shown in the table below, confirm the Misfire RPM and Misfire Load in the Data List.
Engine speed
Duration
Idling
4.5 minutes or more
1000
4.5 minutes or more
2000
2.5 minutes or more
3000
1.5 minutes or more
-
Check whether misfires have occurred by checking for DTCs and freeze frame data.
HINT:
Do not turn the power switch off until the output DTC(s) and freeze frame data have been recorded. When the ECM returns to normal mode (default), the stored DTC(s), freeze frame data and other data are cleared.
- Record the DTC(s), freeze frame data and misfire counts.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for at least 30 seconds.
WIRING DIAGRAM
-
Refer to DTC P010012 for the mass air flow meter sub-assembly circuit.
Click here
-
Refer to Fuel Injector Circuit.
Click here
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
-
Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.
Click here
(Select Powertrain in Health Check and then check the time stamp data.)
Click here
-
If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.
Click here
HINT:
- If any DTCs other than misfire DTCs are output, troubleshoot those DTCs first.
- If the misfire does not recur when the vehicle is brought to the workshop, reproduce the conditions stored in the ECM as freeze frame data.
-
If the misfire still cannot be reproduced even though the conditions stored in the ECM as freeze frame data have been reproduced, one of the following factors is considered to be a possible cause of the problem:
- There was insufficient fuel in the tank.
- Improper fuel was used.
- The spark plugs have been contaminated.
- The problem requires further diagnosis.
- After finishing repairs, check the misfire counts of the cylinders (Misfire Count Cylinder #1 to Misfire Count Cylinder #4).
- Be sure to confirm that no misfiring cylinder DTCs are stored again by conducting the confirmation driving pattern after finishing repairs.
- When one of Short FT B1S1, Long FT B1S1 in the freeze frame data is outside the range of +/-20%, the air fuel ratio may be rich (-20% or less) or lean (+20% or higher).
- When Coolant Temperature in the freeze frame data is less than 75°C (167°F), the misfires have occurred only while warming up the engine.
- Vehicle body vibration caused by an extremely imbalanced drive wheel may cause misfire DTCs to be stored.
- Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
|
1. |
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO MISFIRE DTCS) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Trouble Codes.
(e) Read the DTCs.
Powertrain > Engine > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC P030000, P030027, P030085, P030100, P030200, P030300 and/or P030400 are output |
A |
|
DTC P030000, P030027, P030085, P030100, P030200, P030300 and/or P030400 and other DTCs are output |
B |
HINT:
If any DTCs other than P030000, P030027, P030085, P030100, P030200, P030300 and/or P030400 are output, troubleshoot those DTCs first.
| B |
|
|
|
2. |
CHECK PCV HOSE CONNECTIONS |
(a) Check the PCV hose connections.
Click here
OK:
PCV valve and hose are correctly connected and are not damaged.
| NG |
|
REPAIR OR REPLACE PCV HOSE |
|
|
3. |
READ VALUE USING TECHSTREAM (MISFIRE RPM AND MISFIRE LOAD) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Misfire RPM and Misfire Load.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Misfire RPM |
|
Misfire Load |
(e) Read and note the Misfire RPM and Misfire Load values.
HINT:
The Misfire RPM and Misfire Load values indicate the vehicle conditions under which the misfire occurred.
|
|
4. |
READ VALUE USING TECHSTREAM (CATALYST OT MISFIRE FUEL CUT) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Catalyst OT Misfire Fuel Cut.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Catalyst OT Misfire Fuel Cut |
(e) Read the value displayed on the Techstream.
|
Data List |
Result |
Proceed to |
|---|---|---|
|
Catalyst OT Misfire Fuel Cut |
Avail |
A |
|
Not Avl |
B |
| B |
|
|
|
5. |
PERFORM ACTIVE TEST USING TECHSTREAM (PROHIBIT THE CATALYST OT MISFIRE PREVENT FUEL CUT) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Active Test / Prohibit the Catalyst OT Misfire Prevent Fuel Cut.
Powertrain > Engine > Active Test
|
Tester Display |
|---|
|
Prohibit the Catalyst OT Misfire Prevent Fuel Cut |
(e) Perform the Active Test.
NOTICE:
When performing the Active Test, make sure the vehicle is stopped and the engine is either idling or being revved within 3000 rpm.
|
|
6. |
READ VALUE USING TECHSTREAM (MISFIRE COUNT) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Put the engine in Inspection Mode (Maintenance Mode).
Click here
Powertrain > Hybrid Control > Utility
|
Tester Display |
|---|
|
Inspection Mode |
(e) Enter the following menus: Powertrain / Engine / Data List / Misfire Count Cylinder #1 to Misfire Count Cylinder #4.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Misfire Count Cylinder #1 |
|
Misfire Count Cylinder #2 |
|
Misfire Count Cylinder #3 |
|
Misfire Count Cylinder #4 |
(f) Start the engine and allow the engine to idle.
(g) Read each value for Misfire Count Cylinder #1 to Misfire Count Cylinder #4 displayed on the Techstream. If no misfire counts occur in any cylinders, perform procedure [A] and [B] and then check the misfire counts again.
(1) Drive the vehicle with the Misfire RPM and Misfire Load noted in the "Read Value Using Techstream (Misfire RPM and Misfire Load)" procedures above [A].
(2) Read the Misfire Count Cylinder #1 to Misfire Count Cylinder #4 or DTCs displayed on the Techstream [B].
|
Result |
Proceed to |
|---|---|
|
Most misfires occur in only 1 or 2 cylinders |
A |
|
3 cylinders or more have equal misfire counts |
B |
HINT:
- If it is difficult to reproduce misfires for each cylinder, check the Data List item called Misfire Margin. Try to find vehicle driving conditions that lower the Misfire Margin value. Values above 30% are considered normal.
- If the freeze frame data record of the engine coolant temperature is less than 75°C (167°F), the misfire may be detected only when the engine is cold.
| B |
|
|
|
7. |
INSPECT SPARK PLUG |
(a) Inspect the spark plug of the misfiring cylinder.
Click here
HINT:
Perform "Inspection After Repair" after replacing the spark plug.
Click here
| NG |
|
|
|
8. |
CHECK FOR SPARKS (SPARK TEST) |
(a) Perform a spark test.
Click here
HINT:
- If the result of the spark test is normal, proceed to the next step.
-
Perform "Inspection After Repair" after repairing or replacing the ignition system.
Click here
|
|
9. |
CHECK CYLINDER COMPRESSION PRESSURE |
(a) Measure the cylinder compression pressure of the misfiring cylinder.
Click here
HINT:
Perform "Inspection After Repair" after repairing or replacing the engine assembly.
Click here
| NG |
|
CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION |
|
|
10. |
CHECK TERMINAL VOLTAGE (#10, #20, #30 AND/OR #40) |
(a) Disconnect the ECM connector.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to ECM) |
- |
- |
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C147-34 (#10) - A46-15 (E01) |
Power switch on (IG) |
11 to 14 V |
|
C147-35 (#20) - A46-15 (E01) |
Power switch on (IG) |
11 to 14 V |
|
C147-36 (#30) - A46-15 (E01) |
Power switch on (IG) |
11 to 14 V |
|
C147-37 (#40) - A46-15 (E01) |
Power switch on (IG) |
11 to 14 V |
| NG |
|
|
|
11. |
CHECK FUEL INJECTOR ASSEMBLY OF MISFIRING CYLINDER |
(a) Check the fuel injector assembly (whether fuel volume is high or low, and whether injection pattern is poor).
Click here
HINT:
Perform "Inspection After Repair" after replacing the fuel injector assembly.
Click here
| NG |
|
REPLACE FUEL INJECTOR ASSEMBLY
|
|
|
12. |
CHECK INTAKE SYSTEM |
(a) Check the intake system for vacuum leaks.
Click here
OK:
No leaks from intake system.
HINT:
Perform "Inspection After Repair" after repairing or replacing the intake system.
Click here
| NG |
|
REPAIR OR REPLACE INTAKE SYSTEM |
|
|
13. |
CHECK FUEL PRESSURE |
(a) Check the fuel pressure.
Click here
| NG |
|
|
|
14. |
READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Coolant Temperature |
(e) Read the Data List twice, when the engine is both cold and warmed up.
Standard:
|
Techstream Display |
Condition |
Specified Condition |
|---|---|---|
|
Coolant Temperature |
Cold engine |
Same as ambient air temperature |
|
Warm engine |
Between 75 and 100°C (167 and 212°F) |
HINT:
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.
Click here
| NG |
|
REPLACE ENGINE COOLANT TEMPERATURE SENSOR
|
|
|
15. |
READ VALUE USING TECHSTREAM (INTAKE AIR TEMPERATURE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Intake Air Temperature |
(e) According to the display on the Techstream, read the Data List.
OK:
Same as actual intake air temperature.
HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
Click here
| NG |
|
|
|
16. |
READ VALUE USING TECHSTREAM (MASS AIR FLOW SENSOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Put the engine in Inspection Mode (Maintenance Mode).
Click here
Powertrain > Hybrid Control > Utility
|
Tester Display |
|---|
|
Inspection Mode |
(e) Start the engine.
(f) Enter the following menus: Powertrain / Engine / Data List / Engine Speed, Mass Air Flow Sensor and Coolant Temperature.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Engine Speed |
|
Mass Air Flow Sensor |
|
Coolant Temperature |
(g) Allow the engine to idle until Coolant Temperature is 75°C (167°F) or higher.
(h) Read Mass Air Flow Sensor with the engine speed at 2500 rpm.
HINT:
During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, read the Data List after charge control has completed.
Standard:
|
Techstream Display |
Condition |
Specified Condition |
|---|---|---|
|
Mass Air Flow Sensor |
Engine warmed up Shift position: P A/C: Off Engine Speed: 2500 rpm |
Between 4.5 and 8.5 gm/sec |
| NG |
|
|
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17. |
CHECK VALVE TIMING (CHECK FOR LOOSE TIMING CHAIN AND JUMPED TEETH) |
(a) Remove the cylinder head cover sub-assembly.
|
*a |
39.5° |
*b |
Timing Mark |
|
*c |
"0" Timing Mark |
*d |
Groove |
(b) Turn the crankshaft pulley and align its groove with the "0" timing mark of the timing chain or belt cover sub-assembly.
(c) Check that the timing marks of the camshaft timing gear assembly and camshaft timing sprocket are at the positions shown in the illustration.
HINT:
If the timing marks are not as shown, turn the crankshaft one revolution clockwise.
OK:
Timing marks on camshaft timing gear assembly and camshaft timing sprocket are at the positions shown in the illustration.
HINT:
If the result is not as specified, check for mechanical malfunctions that may have affected the valve timing, such as a jumped tooth or stretching of the timing chain.
| NG |
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18. |
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Put the engine in Inspection Mode (Maintenance Mode).
Click here
Powertrain > Hybrid Control > Utility
|
Tester Display |
|---|
|
Inspection Mode |
(e) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher.
HINT:
The A/C switch and all accessories should be off.
(f) Enter the following menus: Powertrain / Engine / Active Test / Control the EGR Step Position / Data List / Intake Manifold Absolute Pressure and Engine Independent.
Powertrain > Engine > Active Test
|
Active Test Display |
|---|
|
Control the EGR Step Position |
|
Data List Display |
|---|
|
Intake Manifold Absolute Pressure |
|
Engine Independent |
(g) Confirm that the value of Data List item Engine Independent is "Operate" then check the value of Intake Manifold Absolute Pressure while performing the Active Test.
NOTICE:
- Do not leave the EGR valve open for 10 seconds or more during the Active Test.
- Be sure to return the EGR valve to step 0 when the Active Test is completed.
- Do not open the EGR valve 30 steps or more during the Active Test.
OK:
The value of Intake Manifold Absolute Pressure changes in response to the EGR step position when the value of Engine Independent is "Operate".
Standard:
|
- |
Control the EGR Step Position (Active Test) |
|
|---|---|---|
|
0 Steps |
0 to 30 Steps |
|
|
Intake Manifold Absolute Pressure (Data List) |
(EGR valve is fully closed) |
Intake Manifold Absolute Pressure value is at least +10 kPa (1.45 psi) higher than when EGR valve is fully closed |
HINT:
- If the value of Data List item Engine Independent is "Not Opr" when the engine is idling, charge control is being performed. Perform the Active Test after charge control is complete ("Operate" is displayed).
- While performing the Active Test, if the increase in the value of Intake Manifold Absolute Pressure is small, the EGR valve assembly may be malfunctioning.
- Even if the EGR valve assembly is malfunctioning, rough idling or an increase in the value of Intake Manifold Absolute Pressure may occur while performing the Active Test. However, the amount that the value of Intake Manifold Absolute Pressure increases will be smaller than normal.
| OK |
|
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19. |
INSPECT EGR VALVE ASSEMBLY |
(a) Remove the EGR valve assembly.
Click here
(b) Check if the EGR valve is stuck open.
OK:
EGR valve is tightly closed.
HINT:
Perform "Inspection After Repair" after replacing the EGR valve assembly.
Click here
| OK |
|
| NG |
|
REPLACE EGR VALVE ASSEMBLY
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20. |
CHECK INTAKE SYSTEM |
(a) Check the intake system for vacuum leaks.
Click here
OK:
No leaks from intake system.
HINT:
Perform "Inspection After Repair" after repairing or replacing the intake system.
Click here
| NG |
|
REPAIR OR REPLACE INTAKE SYSTEM |
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21. |
CHECK FUEL PRESSURE |
(a) Check the fuel pressure.
Click here
| NG |
|
|
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22. |
READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Coolant Temperature |
(e) Read the Data List twice, when the engine is both cold and warmed up.
Standard:
|
Techstream Display |
Condition |
Specified Condition |
|---|---|---|
|
Coolant Temperature |
Cold engine |
Same as ambient air temperature |
|
Warm engine |
Between 75 and 100°C (167 and 212°F) |
HINT:
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.
Click here
| NG |
|
REPLACE ENGINE COOLANT TEMPERATURE SENSOR
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|
23. |
READ VALUE USING TECHSTREAM (INTAKE AIR TEMPERATURE) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Intake Air Temperature |
(e) According to the display on the Techstream, read the Data List.
OK:
Same as actual intake air temperature.
HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
Click here
| NG |
|
|
|
24. |
READ VALUE USING TECHSTREAM (MASS AIR FLOW SENSOR) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Put the engine in Inspection Mode (Maintenance Mode).
Click here
Powertrain > Hybrid Control > Utility
|
Tester Display |
|---|
|
Inspection Mode |
(e) Start the engine.
(f) Enter the following menus: Powertrain / Engine / Data List / Engine Speed, Mass Air Flow Sensor and Coolant Temperature.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Engine Speed |
|
Mass Air Flow Sensor |
|
Coolant Temperature |
(g) Allow the engine to idle until Coolant Temperature is 75°C (167°F) or higher.
(h) Read Mass Air Flow Sensor with the engine speed at 2500 rpm.
HINT:
During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, read the Data List after charge control has completed.
Standard:
|
Techstream Display |
Condition |
Specified Condition |
|---|---|---|
|
Mass Air Flow Sensor |
Engine warmed up Shift position: P A/C: Off Engine Speed: 2500 rpm |
Between 4.5 and 8.5 gm/sec |
| NG |
|
|
|
25. |
CHECK VALVE TIMING (CHECK FOR LOOSE TIMING CHAIN AND JUMPED TEETH) |
(a) Remove the cylinder head cover sub-assembly.
|
*a |
39.5° |
*b |
Timing Mark |
|
*c |
"0" Timing Mark |
*d |
Groove |
(b) Turn the crankshaft pulley and align its groove with the "0" timing mark of the timing chain or belt cover sub-assembly.
(c) Check that the timing marks of the camshaft timing gear assembly and camshaft timing sprocket are at the positions shown in the illustration.
HINT:
If the timing marks are not as shown, turn the crankshaft one revolution clockwise.
OK:
Timing marks on camshaft timing gear assembly and camshaft timing sprocket are at the positions shown in the illustration.
HINT:
If the result is not as specified, check for mechanical malfunctions that may have affected the valve timing, such as a jumped tooth or stretching of the timing chain.
| NG |
|
|
|
26. |
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Put the engine in Inspection Mode (Maintenance Mode).
Click here
Powertrain > Hybrid Control > Utility
|
Tester Display |
|---|
|
Inspection Mode |
(e) Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher.
HINT:
The A/C switch and all accessories should be off.
(f) Enter the following menus: Powertrain / Engine / Active Test / Control the EGR Step Position / Data List / Intake Manifold Absolute Pressure and Engine Independent.
Powertrain > Engine > Active Test
|
Active Test Display |
|---|
|
Control the EGR Step Position |
|
Data List Display |
|---|
|
Intake Manifold Absolute Pressure |
|
Engine Independent |
(g) Confirm that the value of Data List item Engine Independent is "Operate" then check the value of Intake Manifold Absolute Pressure while performing the Active Test.
NOTICE:
- Do not leave the EGR valve open for 10 seconds or more during the Active Test.
- Be sure to return the EGR valve to step 0 when the Active Test is completed.
- Do not open the EGR valve 30 steps or more during the Active Test.
OK:
The value of Intake Manifold Absolute Pressure changes in response to the EGR step position when the value of Engine Independent is "Operate".
Standard:
|
- |
Control the EGR Step Position (Active Test) |
|
|---|---|---|
|
0 Steps |
0 to 30 Steps |
|
|
Intake Manifold Absolute Pressure (Data List) |
(EGR valve is fully closed) |
Intake Manifold Absolute Pressure value is at least +10 kPa (1.45 psi) higher than when EGR valve is fully closed |
HINT:
- If the value of Data List item Engine Independent is "Not Opr" when the engine is idling, charge control is being performed. Perform the Active Test after charge control is complete ("Operate" is displayed).
- While performing the Active Test, if the increase in the value of Intake Manifold Absolute Pressure is small, the EGR valve assembly may be malfunctioning.
- Even if the EGR valve assembly is malfunctioning, rough idling or an increase in the value of Intake Manifold Absolute Pressure may occur while performing the Active Test. However, the amount that the value of Intake Manifold Absolute Pressure increases will be smaller than normal.
| OK |
|
|
|
27. |
INSPECT EGR VALVE ASSEMBLY |
(a) Remove the EGR valve assembly.
Click here
(b) Check if the EGR valve is stuck open.
OK:
EGR valve is tightly closed.
HINT:
Perform "Inspection After Repair" after replacing the EGR valve assembly.
Click here
| NG |
|
REPLACE EGR VALVE ASSEMBLY
|
|
|
28. |
INSPECT SPARK PLUG |
(a) Inspect the spark plug of the misfiring cylinder.
Click here
HINT:
Perform "Inspection After Repair" after replacing the spark plug.
Click here
| NG |
|
|
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29. |
CHECK FOR SPARKS (SPARK TEST) |
(a) Perform a spark test.
Click here
HINT:
- If the result of the spark test is normal, proceed to the next step.
-
Perform "Inspection After Repair" after repairing or replacing the ignition system.
Click here
|
|
30. |
CHECK CYLINDER COMPRESSION PRESSURE |
(a) Measure the cylinder compression pressure of the misfiring cylinder.
Click here
HINT:
Perform "Inspection After Repair" after repairing or replacing the engine assembly.
Click here
| NG |
|
CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION |
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31. |
CHECK TERMINAL VOLTAGE (#10, #20, #30 AND/OR #40) |
(a) Disconnect the ECM connector.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
|
*a |
Front view of wire harness connector (to ECM) |
- |
- |
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C147-34 (#10) - A46-15 (E01) |
Power switch on (IG) |
11 to 14 V |
|
C147-35 (#20) - A46-15 (E01) |
Power switch on (IG) |
11 to 14 V |
|
C147-36 (#30) - A46-15 (E01) |
Power switch on (IG) |
11 to 14 V |
|
C147-37 (#40) - A46-15 (E01) |
Power switch on (IG) |
11 to 14 V |
| NG |
|
|
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32. |
CHECK FUEL INJECTOR ASSEMBLY |
(a) Check the fuel injector assembly (whether fuel volume is high or low, and whether injection pattern is poor).
Click here
HINT:
Perform "Inspection After Repair" after replacing the fuel injector assembly.
Click here
| OK |
|
| NG |
|
REPLACE FUEL INJECTOR ASSEMBLY
|
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33. |
CHECK ENGINE MECHANICAL SYSTEM |
(a) Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain.
HINT:
Perform "Inspection After Repair" after repairing or replacing the engine mechanical system.
Click here
| NG |
|
REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA |
|
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34. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the power switch off and wait for at least 30 seconds.
|
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35. |
CHECK WHETHER DTC OUTPUT RECURS (MISFIRE DTCS) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Powertrain > Engine > Utility
|
Tester Display |
|---|
|
All Readiness |
(c) Input the DTC: P030000, P030027, P030085, P030100, P030200, P030300 or P030400.
(d) Check the DTC judgment result.
|
Result |
Proceed to |
|---|---|
|
NORMAL (DTCs are not output) |
A |
|
ABNORMAL (DTC P030000, P030027, P030085, P030100, P030200, P030300 and/or P030400 is output) |
B |
| A |
|
|
|
36. |
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY CONNECTOR CONNECTION) |
(a) Check the connection and terminal contact pressure of connectors and wire harnesses between the mass air flow meter sub-assembly and ECM.
Click here
HINT:
Repair any problems.
|
|
37. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the power switch off and wait for at least 30 seconds.
|
|
38. |
CHECK WHETHER DTC OUTPUT RECURS (MISFIRE DTCS) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Powertrain > Engine > Utility
|
Tester Display |
|---|
|
All Readiness |
(c) Input the DTC: P030000, P030027, P030085, P030100, P030200, P030300 or P030400.
(d) Check the DTC judgment result.
|
Result |
Proceed to |
|---|---|
|
NORMAL (DTCs are not output) |
A |
|
ABNORMAL (DTC P030000, P030027, P030085, P030100, P030200, P030300 and/or P030400 is output) |
B |
| A |
|
END |
|
|
39. |
CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) |
(a) Disconnect the mass air flow meter sub-assembly connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C26-4 (VCC) - C147-108 (VCVG) |
Always |
Below 1 Ω |
|
C26-3 (FG) - C147-140 (VG) |
Always |
Below 1 Ω |
|
C26-2 (E2G) - C147-107 (E2G) |
Always |
Below 1 Ω |
|
C26-4 (VCC) or C147-108 (VCVG) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
C26-3 (FG) or C147-140 (VG) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
C26-2 (E2G) or C147-107(E2G) - Body ground and other terminals |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
40. |
REPLACE MASS AIR FLOW METER SUB-ASSEMBLY |
(a) Replace the mass air flow meter sub-assembly.
Click here
HINT:
- If the results of the inspections performed in steps 14 and 22 (READ VALUE USING TECHSTREAM (MASS AIR FLOW SENSOR)) indicated no problem, proceed to the next step without replacing the mass air flow meter sub-assembly.
-
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
Click here
|
|
41. |
CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the power switch off and wait for at least 30 seconds.
|
|
42. |
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Powertrain > Engine > Utility
|
Tester Display |
|---|
|
All Readiness |
(c) Input the DTC: P030000, P030027, P030085, P030100, P030200, P030300 or P030400.
(d) Check the DTC judgment result.
|
Result |
Proceed to |
|---|---|
|
NORMAL (DTCs are not output) |
A |
|
ABNORMAL (DTC P030000, P030027, P030085, P030100, P030200, P030300 and/or P030400 is output) |
B |
| A |
|
END |
| B |
|
REPLACE ECM
|
|
43. |
INSPECT FUEL PUMP |
(a) Inspect the fuel pump.
w/ Canister Pump Module:
w/o Canister Pump Module:
HINT:
Perform "Inspection After Repair" after replacing the fuel pump.
Click here
| OK |
|
REPAIR OR REPLACE FUEL LINE |
| NG |
|
REPLACE FUEL PUMP w/ Canister Pump Module:
w/o Canister Pump Module:
|
|
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