DTC 56-Cx

DTC 56-Cx (56-C0 to 56-C9, 56-CA to 56-CF), 56-Dx (56-D0 to 56-D9, 56-DA to 56-DF): Internal Failure of the SRS Unit

NOTE: Before troubleshooting any of these DTCs, check the. battery/system voltage. If the voltage is low, repair the charging system or replace the battery before troubleshooting the SRS. If the battery/system voltage is now OK, ask the customer if the battery ever went dead. A dead battery may trigger one of these DTCs.

1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is DTC 56-Cx or 56-Dx indicated?

YES - Replace the SRS unit.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Diagnostic Strategies If another DTC is indicated, go to the DTC Troubleshooting Index. DTC List - Supplemental Restraint System