Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001BGWZ |
Model Year Start: 2019 |
Model: Corolla Hatchback |
Prod Date Range: [06/2018 - 03/2019] |
Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground; 2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019] |
DTC
|
P033511
|
Crankshaft Position Sensor "A" Circuit Short to Ground
|
DESCRIPTION
The crankshaft position sensor system consists of a crankshaft position sensor plate and Magneto Resistance Element (MRE) type sensor. The crankshaft position sensor plate has 34 teeth at 10° intervals (2 teeth are missing for detecting top dead center), and is installed on the crankshaft. The crankshaft position sensor generates 34 signals per crankshaft revolution. The ECM uses the crankshaft position sensor signal (NE signal) to detect the crankshaft position and engine speed.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
Memory
|
Note
|
P033511
|
Crankshaft Position Sensor "A" Circuit Short to Ground
|
Diagnosis condition:
Abnormal condition:
-
The crankshaft position sensor output voltage is less than 0.3 V.
Malfunction time:
Trip logic:
Detection conditions:
Sensors/components used for detection (Main):
-
Crankshaft position sensor
Sensors/components used for detection (Related):
|
-
Short in crankshaft position sensor circuit
-
Crankshaft position sensor
-
ECM
|
Comes on
|
DTC stored
|
SAE Code: P0337
|
MONITOR DESCRIPTION
When the engine switch is on (IG) and the output voltage of the crankshaft position sensor is less than 0.3 V for 4 seconds or more, the ECM determines that the crankshaft position sensor circuit is malfunctioning and illuminates the MIL and stores a DTC.
MONITOR STRATEGY
Related DTCs
|
P0337: Crankshaft position sensor range check (Low voltage)
|
Required Sensors/Components (Main)
|
Crankshaft position sensor
|
Required Sensors/Components (Related)
|
Camshaft position sensor
|
Frequency of Operation
|
Continuous
|
Duration
|
4 seconds
|
MIL Operation
|
Immediate
|
Sequence of Operation
|
None
|
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs are not present
|
None
|
All of the following conditions are met
|
-
|
Battery voltage
|
8 V or higher
|
Engine switch
|
on (IG)
|
Starter
|
Off
|
TYPICAL MALFUNCTION THRESHOLDS
Crankshaft position sensor voltage
|
Less than 0.3 V
|
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.
Click here
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
-
Connect the Techstream to the DLC3.
-
Turn the engine switch on (IG).
-
Turn the Techstream on.
-
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
-
Turn the engine switch off and wait for at least 30 seconds.
-
Turn the engine switch on (IG) [A].
-
Turn the Techstream on.
-
Wait 5 seconds or more [B].
-
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
|
-
DTC judgment completed
-
System normal
|
ABNORMAL
|
-
DTC judgment completed
-
System abnormal
|
INCOMPLETE
|
-
DTC judgment not completed
-
Perform driving pattern after confirming DTC enabling conditions
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
-
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 engine switch on (IG).
-
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
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Engine > Clear DTCs
(e) Turn the engine switch off and wait for at least 30 seconds.
NEXT
|
|
|
2.
|
CHECK DTC OUTPUT (DTC P033511 OR P033515)
|
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) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(c) Enter the following menus: Powertrain / Engine / Trouble Codes.
(d) Read the DTCs.
Powertrain > Engine > Trouble Codes
HINT:
When the ECM, wire harnesses and connectors are normal, DTC P033515 will be stored when the connector of the sensor is disconnected.
Result
|
Proceed to
|
DTC P033515 is output
|
A
|
DTC P033511 is output
|
B
|
B
|
|
|
3.
|
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
|
Z4-1 (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
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|