Important: Diagnose all Bxxxx codes prior to diagnosing any remaining Pxxxx code.

B0688

DTC B0688

Passlock

B1007

DTC B1007

Passlock

B2947

DTC B2947

Passlock

B2948

DTC B2948

Passlock

B2957

DTC B2957

Passlock

B2958

DTC B2958

Passlock

B2960

DTC B2960

Passlock

B3031

DTC B3031

Passlock

B3033

DTC B3033

Passlock

C0559

DTC C0559

Passlock

P1626

DTC P1626

PCM

P1630

DTC P1630

PCM

P1631

DTC P1631

PCM

PXXXX Other PCM DTCs

Refer to Diagnostic System Check - Engine Controls in Engine Controls - 4.3L

Refer to Diagnostic System Check - Engine Controls in Engine Controls - 5.0L and 5.7L

Refer to Diagnostic System Check - Engine Controls in Engine Controls - 6.5L

Refer to Diagnostic System Check - Engine Controls in Engine Controls - 8.1L