GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Modules

P0532

DTC P0532 or P0533

ECM

P0533

DTC P0532 or P0533

ECM

P0645

DTC P0645

ECM

P1537

DTC P1537 or P1538

ECM

P1538

DTC P1537 or P1538

ECM