- DTC judgment completed
- System normal
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000002B35S |
| Model Year Start: 2023 | Model: Corolla Hatchback | Prod Date Range: [03/2023 - ] |
| Title: K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P091412; Gear Shift Position Circuit Short to Battery; 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 - ] | ||
|
DTC |
P091412 |
Gear Shift Position Circuit Short to Battery |
DESCRIPTION
A magnet is installed to the shift fork. When the ECM commands the S1 synchronizer to move, the shift fork moves the S1 synchronizer together and the magnet.
The Hall IC built into the shift stroke sensor converts the magnet position into a voltage signal and sends it to the ECM. The ECM judges the S1 synchronizer operating condition (whether the S1 synchronizer is engaged or released) based on this signal.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
DTC Output from |
Priority |
Note |
|---|---|---|---|---|---|---|---|
|
P091412 |
Gear Shift Position Circuit Short to Battery |
A short to +B is detected in the shift stroke sensor circuit for 5 seconds or more (1-trip detection logic). |
|
Comes on |
Engine |
A |
SAE Code: P0917 |
MONITOR DESCRIPTION
This DTC indicates a short to +B in the shift stroke sensor circuit. If there is a short to +B in the shift stroke sensor circuit, the ECM detects the malfunction, illuminates the MIL and stores this DTC.
MONITOR STRATEGY
|
Related DTCs |
P0917: Gear shift position sensor/Range check (High voltage) |
|
Required sensors/Components |
Gear shift position sensor |
|
Frequency of operation |
Continuous |
|
Duration |
5 sec. |
|
MIL operation |
Immediate |
|
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
|
The monitor will run whenever the following DTCs are not stored |
None |
|
Starter |
OFF |
|
Battery voltage |
8 V or more |
|
Ignition switch |
ON |
TYPICAL MALFUNCTION THRESHOLDS
|
Gear shift position sensor voltage |
More than 4.75 V |
COMPONENT OPERATING RANGE
|
Gear shift position sensor voltage |
0.79 V or more and 4.75 V or less |
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
- After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
-
When clearing the permanent DTCs, refer to the Clear Permanent DTC procedure.
Click here
![2023 - 2025 MY Corolla Corolla Hatchback [03/2023 - ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
-
Perform the D Position Shift Test inspection in Road Test. [*1]
Click here
HINT:
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Stop the vehicle.
- Enter the following menus: Powertrain / Engine / Utility / All Readiness.
- Input the DTC: P091412.
-
Check the DTC judgment result.
GTS Display
Description
NORMAL
ABNORMAL
- DTC judgment completed
- System abnormal
INCOMPLETE
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
N/A
- Unable to perform DTC judgment
- Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Perform the universal trip to clear permanent DTCs.
Click here
-
Perform registration and/or initialization when parts related to the continuously variable transaxle system are replaced.
Click here
-
Check that no DTCs are stored after performing initialization.
Click here
PROCEDURE
|
1. |
INSPECT ECM (VDD VOLTAGE) |
Pre-procedure1
(a) Disconnect the C73 shift stroke sensor connector.
(b) Turn the ignition switch to ON.
Procedure1
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C73-2 (VDD) - C73-3 (GND) |
Ignition switch ON |
4.7 to 5.3 V |
Post-procedure1
(d) Turn the ignition switch off.
(e) Connect the C73 shift stroke sensor connector.
| NG |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (SHIFT STROKE SENSOR - ECM) |
Pre-procedure1
(a) Disconnect the C73 shift stroke sensor connector.
(b) Disconnect the C160 ECM connector.
Procedure1
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C73-4 (VOUT) or C160-124 (SFV) - Other terminals |
Always |
10 kΩ or higher |
Post-procedure1
(d) Connect the C160 ECM connector.
(e) Connect the C73 shift stroke sensor connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT SHIFT STROKE SENSOR |
Click here
| NG |
|
|
|
4. |
REPLACE ECM |
HINT:
Click here
| NEXT |
|
PERFORM REGISTRATION AND INITIALIZATION for Registration: Click here
for Initialization: Click here
|
|
5. |
CHECK HARNESS AND CONNECTOR (SHIFT STROKE SENSOR - ECM) |
Pre-procedure1
(a) Disconnect the C73 shift stroke sensor connector.
(b) Disconnect the C160 ECM connector.
Procedure1
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C73-2 (VDD) or C160-154 (VCSF) - Other terminals |
Always |
10 kΩ or higher |
Post-procedure1
(d) Connect the C160 ECM connector.
(e) Connect the C73 shift stroke sensor connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6. |
REPLACE ECM |
HINT:
Click here
| NEXT |
|
PERFORM REGISTRATION AND INITIALIZATION for Registration: Click here
for Initialization: Click here
|
|
|