Diesel Data: Automotive Repair

DTC 53-xx

DTC 51-1x, 51-2x, 51-3x, 51-5x, 51-7x, 51-8x, 52-xx, 53-xx, 54-xx ("x" can be 0 thru 9 or A thru F): Internal Failure of the SRS Unit

NOTE:
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.
- 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 or if the engine was started and run with the battery in a low state of charge A dead battery may trigger one of these DTCs.

1. Clear 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 51-1x, 51-2x, 51-3x, 51-5x, 51-7x, 51-8x, 52-xx, 53-xx, or 54-xx indicated?

YES - Replace the SRS unit.

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