Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000002B35T
Model Year Start: 2023 Model: Corolla Hatchback Prod Date Range: [03/2023 -           ]
Title: K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P091414; Gear Shift Position Circuit Short to Ground or Open; 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]

DTC

P091414

Gear Shift Position Circuit Short to Ground or Open

DESCRIPTION

Refer to DTC P091412.

Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P091412; Gear Shift Position Circuit Short to Battery

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

DTC Output from

Priority

Note

P091414

Gear Shift Position Circuit Short to Ground or Open

An open or short to ground is detected in the shift stroke sensor circuit for 5 seconds or more (1-trip detection logic).

  • Shift stroke sensor
  • Harness and connector
  • ECM

Comes on

Engine

A

SAE Code:

P0916

MONITOR DESCRIPTION

This DTC indicates an open or short to ground in the shift stroke sensor circuit. If there is an open or short to ground in the shift stroke sensor circuit, the ECM detects the malfunction, illuminates the MIL and stores this DTC.

MONITOR STRATEGY

Related DTCs

P0916: Gear shift position sensor/Range check (Low 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

Less than 0.79 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

  1. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  2. Turn the ignition switch off and wait for 2 minutes or more.
  3. Perform the D Position Shift Test inspection in Road Test. [*1]

    Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: ROAD TEST

    HINT:

    [*1]: Normal judgment procedure.

    The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

  4. Stop the vehicle.
  5. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  6. Input the DTC: P091414.
  7. Check the DTC judgment result.

    GTS 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

    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

Refer to DTC P091412.

Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: P091412; Gear Shift Position Circuit Short to Battery+

CAUTION / NOTICE / HINT

NOTICE:

  • Perform the universal trip to clear permanent DTCs.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: DTC CHECK / CLEAR

  • Perform registration and/or initialization when parts related to the continuously variable transaxle system are replaced.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: PRECAUTION

  • Check that no DTCs are stored after performing initialization.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: DTC CHECK / CLEAR

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

GO TO STEP 5

OK

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) - C160-124 (SFV)

Always

Below 1 Ω

C73-4 (VOUT) or C160-124 (SFV) - Body ground and 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

OK

3.

INSPECT SHIFT STROKE SENSOR

Click here 2023 - 2025 MY Corolla Corolla Hatchback [09/2022 -        ]; K120 / K121 (CVT): SHIFT STROKE SENSOR: INSPECTION

NG

REPLACE SHIFT STROKE SENSOR

OK

4.

REPLACE ECM

HINT:

Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; M20A-FKS (ENGINE CONTROL): ECM: REMOVAL

NEXT

PERFORM REGISTRATION AND INITIALIZATION

for Registration: Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: REGISTRATION

for Initialization: Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: INITIALIZATION

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) - C160-154 (VCSF)

Always

Below 1 Ω

C73-3 (GND) - C160-123 (E2SF)

Always

Below 1 Ω

C73-2 (VDD) or C160-154 (VCSF) - Body ground and other terminals

Always

10 kΩ or higher

C73-3 (GND) or C160-123 (E2SF) - Body ground and 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

OK

6.

REPLACE ECM

HINT:

Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; M20A-FKS (ENGINE CONTROL): ECM: REMOVAL

NEXT

PERFORM REGISTRATION AND INITIALIZATION

for Registration: Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: REGISTRATION

for Initialization: Click here 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 -        ]; K120 / K121 (CVT): K121 CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM: INITIALIZATION