P0920

DTC Code	DTC Name
P0920	Gear Shift Forward Actuator Circuit

DESCRIPTION

The shift and select actuator is operated by the transmission control ECU and changes the transmission gear by the shift and select lever shaft movement. An electric motor (shift motor) moves the shift and select lever shaft to shift direction, and the shift stroke sensor, which is mounted on the shift and select actuator assembly, detects the shift position. The transmission control ECU monitors the electrical current and shift motor output terminal voltage, and detects malfunctions in the shift motor circuit.

DTC No.	DTC Detection Conditions	Trouble Areas
P0920	The transmission control ECU detects the following conditions: (1 trip detection logic) Shift motor is not energized Shift motor voltage is less than 0.5 V^1, or more than threshold^2for 0.5 seconds +BM voltage is 10 V or more	Shift and select actuator assembly (shift motor) Short in shift motor circuit Transmission control ECU
P0920	The transmission control ECU detects the following conditions: (1 trip detection logic) Shift motor is energized Target shift motor current is more than 5A Actual shift motor current is less than 1A^*3	Shift and select actuator assembly (shift motor) Open in shift motor circuit Transmission control ECU
P0920	The transmission control ECU detects the following conditions: (1 trip detection logic) Shift motor is not energized Difference between maximum and minimum voltages of shift motor terminal (MSF+ or MSF-) is more than threshold^*4for 0.5 seconds +BM voltage is 10 V or more	Shift and select actuator assembly (shift motor) Open in shift motor circuit Transmission control ECU

DTC No.

DTC Detection Conditions

Trouble Areas

P0920

The transmission control ECU detects the following conditions:

(1 trip detection logic)

Shift motor is not energized
Shift motor voltage is less than 0.5 V^*1, or more than threshold^*2for 0.5 seconds
+BM voltage is 10 V or more

Shift and select actuator assembly (shift motor)
Short in shift motor circuit
Transmission control ECU

P0920

The transmission control ECU detects the following conditions:

(1 trip detection logic)

Shift motor is energized
Target shift motor current is more than 5A
Actual shift motor current is less than 1A^*3

Shift and select actuator assembly (shift motor)
Open in shift motor circuit
Transmission control ECU

P0920

The transmission control ECU detects the following conditions:

(1 trip detection logic)

Shift motor is not energized
Difference between maximum and minimum voltages of shift motor terminal (MSF+ or MSF-) is more than threshold^*4for 0.5 seconds
+BM voltage is 10 V or more

Shift and select actuator assembly (shift motor)
Open in shift motor circuit
Transmission control ECU

^*1: A short between the shift motor circuit and the body ground is suspected.
^*2: A short between the shift motor circuit and the +B circuit is suspected.
^*3: An open in the shift motor circuit is suspected. When the motor current does not flow to the ECU terminals despite the ECU ordering the shift motor to operate, the ECU sets the DTC.
^*4: An open in the shift motor circuit is suspected. When the difference is more than the threshold despite the ECU not ordering the shift motor to operate, the ECU sets the DTC.

WIRING DIAGRAM

INSPECTION PROCEDURE

Note

In clutch actuator assembly replacement, perform Clamp Position Adjustment before removing the actuator.
In shift stroke sensor or shift and select actuator assembly replacement, perform the [Initialization and Learning] procedure Click here and [Synchronization Position Calibration] procedure Click here after installing the sensor or actuator assembly. If the sensor or actuator is installed without performing [Initialization and Learning] and [Synchronization Position Calibration], it may cause driving performance degradation or system component breakage.

PROCEDURE

INSPECT SHIFT AND SELECT ACTUATOR ASSEMBLY