Diagnostic Tests: Notes

WARNING: This page is about a different car, the 2001 GMC Sonoma and 2001 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before clearing DTCs, perform powertrain diagnostic system check. See POWERTRAIN DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTICS. Record FREEZE FRAME/FAILURE RECORDS for reference during testing. Data will be erased when DTCs are cleared.

NOTE: If PCM is replaced, NEW PCM must be programmed. See POWERTRAIN CONTROL MODULE under PROGRAMMING.

NOTE: For component locations, see appropriate SYSTEM & COMPONENT TESTING article.