DTC Troubleshooting: 54-5x, 54-6x, 54-7x

DTC 54-5x (54-50 to 54-59, 54-5A to 54-5F),54-6x (54-60 to 54-69, 54-6A to 54-6F),54-7x (54-70 to 54-79, 54-7A to 54-7F): 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. Erase the DTC memory. 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 54-5x, 54-6x or 54-7x indicated?
YES | - | Replace the SRS unit. ■
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 for troubleshooting details.