- DTC judgment completed
- System normal
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001HTKD |
| Model Year Start: 2020 | Model: Corolla Hatchback | Prod Date Range: [03/2019 - 03/2023] |
| Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P03351F; Crankshaft Position Sensor "A" Circuit Intermittent; 2020 - 2023 MY Corolla Corolla Hatchback [03/2019 - 03/2023] | ||
|
DTC |
P03351F |
Crankshaft Position Sensor "A" Circuit Intermittent |
DESCRIPTION
Refer to DTC P033511.
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![2020 - 2023 MY Corolla Corolla Hatchback [03/2019 - 03/2023]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground+](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
|
P03351F |
Crankshaft Position Sensor "A" Circuit Intermittent |
Diagnosis condition:
Abnormal condition:
Malfunction time:
Trip logic:
Detection conditions:
Sensors/components used for detection (Main):
Sensors/components used for detection (Related):
|
|
Does not come on |
DTC stored |
|
-
Reference: Inspection using an oscilloscope.
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MONITOR DESCRIPTION
When the engine is running and no crankshaft position sensor signal is received for 0.05 seconds or more, the ECM determines that the crankshaft position sensor circuit is malfunctioning and stores a DTC.
MONITOR STRATEGY
|
Required Sensors/Components (Main) |
Crankshaft position sensor |
|
Required Sensors/Components (Related) |
Camshaft position sensor |
|
Frequency of Operation |
Continuous |
CONFIRMATION DRIVING PATTERN
HINT:
-
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
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- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for at least 30 seconds.
- Start the engine [A].
- Run the engine at an engine speed of 1000 rpm for 5 seconds or more [B].
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Trouble Codes [C].
-
Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Proceed to the next screen and enter the DTC to be checked.
-
Check the DTC judgment result.
Techstream Display
Description
NORMAL
ABNORMAL
- DTC judgment completed
- System abnormal
INCOMPLETE
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
HINT:
- If the judgment result is NORMAL, the system is normal.
- If the judgment result is ABNORMAL, the system has a malfunction.
- If the judgment result is INCOMPLETE, perform steps [A] through [C] again.
-
[A] to [C]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
WIRING DIAGRAM
Refer to DTC P033511.
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CAUTION / NOTICE / HINT
HINT:
- If no problem is found by this diagnostic troubleshooting procedure, check for problems by referring to the engine mechanical section.
-
The engine speed can be checked by using the Techstream. To perform the check, follow the procedures below:
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Data List / Engine Speed.
- Start the engine.
- The engine speed may be indicated as zero despite the engine running normally. This is caused by a lack of NE signals from the crankshaft position sensor. Alternatively, the engine speed may be indicated as lower than the actual engine speed if the crankshaft position sensor output voltage is insufficient.
- 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 DTC OUTPUT (DTC P03351F AND P033511, P033515 OR P033531) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(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 P03351F is output |
A |
|
DTC P03351F and P033511, P033515 or P033531 are output |
B |
HINT:
If DTC P033511, P033515 or P033531 is output, perform troubleshooting for those DTCs first.
| B |
|
GO TO DTC CHART
|
|
|
2. |
CHECK TERMINAL VOLTAGE AND INTERNAL RESISTANCE (CRANKSHAFT POSITION SENSOR AND ECM) |
|
*a |
Front view of wire harness connector (to Crankshaft Position Sensor) |
HINT:
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
(a) Disconnect the crankshaft position sensor connector.
(b) Turn the ignition switch to ON.
(c) While jiggling the ECM connector, measure the voltage according to the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
Z4-3 (VCNE) - Body ground |
Ignition switch ON |
4.5 to 5.5 V |
|
Z4-1 (NE+) - Body ground |
Ignition switch ON |
3.0 to 5.0 V |
HINT:
By jiggling the connector while performing the inspection, it is possible to confirm that the terminals are contacting with sufficient pressure.
(d) Turn the ignition switch off.
(e) While jiggling the ECM connector, measure the resistance according to the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
Z4-2 (NE-) - Body ground |
Ignition switch off |
Below 1 Ω |
HINT:
By jiggling the connector while performing the inspection, it is possible to confirm that the terminals are contacting with sufficient pressure.
| NG |
|
|
|
3. |
CHECK SENSOR INSTALLATION AND CONDUCT VISUAL INSPECTION (CRANKSHAFT POSITION SENSOR) |
|
*a |
Clearance |
(a) Visually check the crankshaft position sensor for damage.
(b) Check the crankshaft position sensor installation condition.
OK:
The crankshaft position sensor does not have any damage and is installed properly.
| OK |
|
REPLACE CRANKSHAFT POSITION SENSOR
|
| NG |
|
|
4. |
CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM) |
(a) Disconnect the crankshaft position sensor 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 |
|---|---|---|
|
Z4-3 (VCNE) - C76-116 (VCNE) |
Always |
Below 1 Ω |
|
Z4-1 (NE+) - C76-93 (NE+) |
Always |
Below 1 Ω |
|
Z4-2 (NE-) - C76-115 (NE-) |
Always |
Below 1 Ω |
|
Z4-3 (VCNE) or C76-116 (VCNE) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
Z4-1 (NE+) or C76-93 (NE+) - Body ground and other terminals |
Always |
10 kΩ or higher |
|
Z4-2 (NE-) or C76-115 (NE-) - Body ground and other terminals |
Always |
10 kΩ or higher |
| OK |
|
REPLACE ECM
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|