DTC Troubleshooting: 54-7x, 55-1x, 55-2x

DTC 54-7x (54-70 to 54-79, 54-7A to 54-7F),
55-1x (55-10 to 55-19, 55-1A to 55-1F),
55-2x (55-20 to 55-29, 55-2A to 55-2F):

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 54-7x, 55-1x, or 55-2x indicated?

YES - Replace the SRS unit.n

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC Troubleshooting Index.