Retrieving Diagnostic Trouble Codes

All Diagnostic Trouble Codes (DTC) for ABS and air bag are retrieved using flash codes. For description of ABS DTCs, see DIAGNOSTIC TROUBLE CODE INDEX (ABS CONTROL MODULE) . For diagnosis of air bag restraint system DTCs, see lemon-25® AIR BAG SERVICE & REPAIR MANUAL, DOMESTIC & IMPORTED MODELS. PCM and TCM DTC retrieval and diagnosis is covered in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE and ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.