P1839

P1839 Position Switch On

Description
The differential lock position switch sends a signal to the differential lock control unit when the differential lock is engaged. The differential lock control unit monitors the left and right rear wheel speed sensor signals to determine wheel slippage. When the differential lock is engaged the left and right rear wheel speed sensor signals should match.

DTC Logic

P1839:

Diagnosis Procedure

Step 1:

Step 1-4:

Step 4-5:

Step 5: