DTC P1A33[12] Transfer 4WD Switch Circuit Low (4WD models)

1. DTC P1A33[12] description

The transfer actuator is installed to the transfer and performs switching between two-wheel drive and four-wheel drive, and between High and Low using one actuator. The transfer motor position sensor is built into the transfer actuator. The 2-4 switch and neutral switch are installed to the transfer body. The TCCM recognizes the current transfer driving conditions based on the combinations of the signals from the transfer motor position sensor, 2-4 switch, and neutral switch. When the transfer actuator operation has been completed and the transfer motor position sensor input is 4H or 4L, if it is detected that the 2-4 switch is ON, this DTC is set.

2. Condition for setting DTC P1A33[12]

Condition for running the DTC

The battery voltage is 10 to 16 V.
Transfer actuator operation has been completed.

Condition for setting the DTC

The TCCM detects that 2-4 switch is ON for 10 seconds when the transfer motor position is 106° or more and less than 152°.

3. Action taken when DTC P1A33[12] sets

The TCCM illuminates the check 4WD warning light when the diagnostic runs and fails.
When the transfer actuator operation has been completed and the transfer motor position sensor status is 2H, the shift-on-the-fly actuator is forcibly driven to the two-wheel drive side.
The TCCM is reset after the ignition switch turns OFF.