CHEVROLET Technical Service Bulletins for P1683 code
2002 CHEVROLET TRAILBLAZER ENGINE AND ENGINE COOLING:ENGINE
2002 CHEVROLET TRAILBLAZER ELECTRICAL SYSTEM:IGNITION:MODULE
2002 CHEVROLET ENVOY ELECTRICAL SYSTEM:IGNITION:MODULE
2002 CHEVROLET TRAILBLAZER ELECTRICAL SYSTEM:IGNITION:MODULE
2002 CHEVROLET CAVALIER POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM, PCM)