Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Gear Shift Position Circuit Short to Battery (P091412)

Toyota Corolla Cross (2022-2024) Service Manual / Drivetrain / K120 (cvt) / Continuously Variable Transaxle System / Gear Shift Position Circuit Short to Battery (P091412)

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).
  • Shift stroke sensor
  • Harness and connector
  • TCM

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

Auxiliary battery voltage

8 V or more

Ignition switch

ON

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

  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. Turn the ignition switch to ON and turn the GTS on.
  4. Start the engine.
  5. 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.

  6. Stop the vehicle.
  7. Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
  8. Input the DTC: P091412.
  9. 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

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 shift stroke sensor connector.

*a

Front view of wire harness connector

(to Shift Stroke Sensor)

(b) Turn the ignition switch to ON.

(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

(d) Connect the shift stroke sensor connector.

NG

GO TO STEP 5

OK

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
OK

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

REPLACE SHIFT STROKE SENSOR

OK

4.

REPLACE 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
OK

6.

REPLACE TCM

Click here

NEXT

PERFORM REGISTRATION AND INITIALIZATION

for Registration: Click here

for Initialization: Click here

    READ NEXT:

     Gear Shift Position Circuit Short to Ground or Open (P091414)

    DESCRIPTION Refer to DTC P091412. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory No

     AT Solenoids Operation Shutdown Circuit Stuck Off (P17029F)

    DESCRIPTION The TCM continuously monitors its CPU. If the output of the CPU deviates from the standard, the TCM will illuminate the MIL and store this DTC. DTC No. Detection

     AT Solenoid Output Malfunction (P170300)

    DESCRIPTION The TCM controls the shift solenoid valves SL1, SL2 and SLG to change the shift mode from gear mode to belt mode and vice versa. DTC No. Detection Item

    SEE MORE:

     Brake Override System

    DESCRIPTION When the vehicle is being driven, depressing the accelerator pedal and brake pedal will activate the brake override system to restrict engine output. The conditions for activating the brake override system as well as the items that are controlled are explained below. Activation Condit

     Disassembly

    DISASSEMBLY CAUTION / NOTICE / HINT COMPONENTS (DISASSEMBLY) Procedure Part Name Code 1 TRANSFER AND TRANSAXLE SETTING STUD BOLT 36100A - - 2 SEC

    © 2020-2024 Copyright www.tcorollacross.com