Diagnostic Trouble Code Tests and Associated Procedures

DTC Priority Table B1891-B1231:

DTC Priority Table B1921-B2441:

DTC Priority Table B2440-B1870:

While the Lamp Fault Codes (LFCs) are an indication of a general concern in the passive restraints system, the Diagnostic Test Codes (DTCs) are more specific. The DTCs can be retrieved from the Restraints Control Module (RCM) with a scan tool via the Data Link Connector (DLC).

Because an LFC may be the first indication of a system concern, the table lists the DTCs in the numerical order of the associated LFC.