- DTC judgment completed
- System normal
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001D0XS |
| Model Year Start: 2019 | Model: Corolla Hatchback | Prod Date Range: [06/2018 - 09/2022] |
| Title: K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P091412; Gear Shift Position Circuit Short to Battery; 2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022] | ||
|
DTC |
P091412 |
Gear Shift Position Circuit Short to Battery |
DESCRIPTION
A magnet is installed to the shift fork. When the TCM 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 TCM. The TCM 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 |
Memory |
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 |
DTC stored |
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 TCM 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 |
|
Engine switch |
On (IG) |
TYPICAL MALFUNCTION THRESHOLDS
|
Gear shift position sensor voltage |
More than 4.66 V |
COMPONENT OPERATING RANGE
|
Gear shift position sensor voltage |
0.52 V or more and 4.66 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
![2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; K120 / K121 (CVT): K120 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG) and 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 2 minutes or more.
- Turn the engine switch on (IG) and turn the Techstream on.
- Start the engine.
-
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 / Transmission / Utility / All Readiness.
- Input the DTC: P091412.
-
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
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 TCM (VDD VOLTAGE) |
|
(a) Disconnect the C73 shift stroke sensor connector. |
|
(b) Turn the engine switch on (IG).
(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) |
Engine switch on (IG) |
4.7 to 5.3 V |
(d) Connect the C73 shift stroke sensor connector.
| NG |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (SHIFT STROKE SENSOR - TCM) |
(a) Disconnect the C73 shift stroke sensor connector.
(b) Disconnect the C80 TCM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C73-4 (VOUT) or C80-46 (SFV) - Other terminals |
Always |
10 kΩ or higher |
(d) Connect the C80 TCM connector.
(e) Connect the C73 shift stroke sensor connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT SHIFT STROKE SENSOR |
(a) Connect 3 new dry-cell batteries (1.5 V each) in series.
(b) Prepare a magnet or equivalent tool.
(c) Remove the shift stroke sensor.
Click here
(d) Connect a positive (+) lead from the batteries to terminal 2 (VDD) and a negative (-) lead to terminal 3 (GND).
|
*a |
Component without harness connected (Shift Stroke Sensor) |
*b |
Magnet Movement Direction |
|
*c |
Dry Cell Battery |
*d |
Magnet |
|
*e |
2.6 mm or less |
- |
- |
(e) Wave the magnet left and right 2.6 mm (0.102 in.) or less from the tip of the shift stroke sensor to output a high/low signal while measuring the voltage.
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage (Combined Dry-cell Battery Voltage of 4.5 V):
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
4 (VOUT) - 3 (GND) |
High signal |
4.09 to 4.19 V |
|
Low signal |
0.36 to 0.45 V |
Reference Voltage (Combined Dry-cell Battery Voltage of 5.0 V):
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
4 (VOUT) - 3 (GND) |
High signal |
4.55 to 4.65 V |
|
Low signal |
0.4 to 0.5 V |
(g) Install the shift stroke sensor.
Click here
| NG |
|
|
|
4. |
REPLACE TCM |
(a) Replace the TCM.
Click here
| NEXT |
|
PERFORM REGISTRATION AND INITIALIZATION for Registration: Click here
for Initialization: Click here
|
|
5. |
CHECK HARNESS AND CONNECTOR (SHIFT STROKE SENSOR - TCM) |
(a) Disconnect the C73 shift stroke sensor connector.
(b) Disconnect the C80 TCM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C73-2 (VDD) or C80-45 (VCSF) - Other terminals |
Always |
10 kΩ or higher |
(d) Connect the C80 TCM connector.
(e) Connect the C73 shift stroke sensor connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6. |
REPLACE TCM |
(a) Replace the TCM.
Click here
| NEXT |
|
PERFORM REGISTRATION AND INITIALIZATION for Registration: Click here
for Initialization: Click here
|
|
|