Pinpoint Test A: B1555

WARNING: This page is about a different variant/trim than selected.

A1 CARRY OUT NETWORK TEST
- Key in ON position.
- Connect the diagnostic tool.
- Carry out a network test.
- Did the network test pass?
1. YES : Go to A2.
2. NO : REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the network concern.
A2 CHECK 4X4 INDICATOR PROVE-OUT
- Carry out the 4X4 control module self-test.
- Are any 4X4 control module DTCs present?
1. YES : For DTC B1555, go to A3. For all other DTCs, refer to the 4X4 Control Module DTC Chart.
2. NO : The system is functioning correctly.
A3 CHECK THE 4X4 CONTROL MODULE IGNITION SWITCH STATUS PIDs
- Enter the following diagnostic mode on the diagnostic tool: DataLogger - 4X4 Control Module
- Monitor the following ignition switch PIDs:
  - Ignition Switch - Off/Unlock Position (IGN_O/U)
  - ACC Position (IGN_A)
  - Start Position 3 (IGN_S)
  - Ignition Switch - Run/Start Position (IGN_R/S)
  - Ignition Switch - Run Position (IGN_R)
- Do the ignition switch PIDs match the ignition switch positions?
1. YES : The system is functioning correctly.
2. NO : If the IGN_R/S PID did not match, CHECK SJB fuse 35 (10A). If the fuse is OK, REPAIR circuit CBP35 (YE/GY). CLEAR the DTCs. REPEAT the self-test.
  If the IGN_O/U, IGN_A, IGN_S or IGN_R PIDs did not match, REFER to STEERING COLUMN SWITCHES article to diagnose the ignition switch concern.