Retrieving Codes
WARNING: This page is about a different car, the 1995 GMC Sonoma. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Perform SYSTEM DIAGNOSTIC CHECK
before retrieving codes.
Turn ignition off. Connect Tech 1 scan tester with RWAL/4WAL cartridge or Mass Storage Cartridge to Data Link Connector (DLC). Access RWAL brake trouble codes with Tech 1. Repair trouble codes in order they appear. See appropriate DTC under TROUBLE CODES for diagnosis. See CLEARING CODES for erasing stored trouble codes. If no trouble codes are present, see appropriate symptom under SYMPTOM DIAGNOSIS .