SRS DTC Troubleshooting: 53-FF
DTC 53-FF:
SRS Unit Programming Error
NOTE:
- This DTC is indicated when a SRS unit update is not completed properly.
- Do not turn the ignition switch to ACC (I) or to LOCK (0) while updating the SRS unit. If you turn the ignition switch to ACC (I) or to
LOCK (0) before you complete the SRS unit update procedure, the SRS unit can be damaged.
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures See: Body and Frame/Air Bag(s) Arming and
Disarming/Service and Repair and General Troubleshooting Information See: Restraints and Safety Systems/Air Bag Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes.
1. Do the SRS unit update procedure See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Programming and
Relearning/SRS Unit Update.
2. Turn the ignition switch to ON (II), then wait for 10 seconds.
3. Check for DTCs with the HDS.
Is DTC 53-FF indicated?
YES -
Replace the original SRS unit See: Relays and Modules/Relays and Modules - Restraints and Safety Systems/Air Bag Control Module/Service and
Repair/SRS Unit Replacement.?
NO -
Update is complete.?
53-xx
SRS DTC Troubleshooting: 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, 58-xx
DTC 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, 58-xx ("x" can be 0 thru 9 or A thru F):
Internal Failure of the SRS Unit
NOTE:
- Before troubleshooting any of these DTCs, check the battery/system voltage and battery cable connections See: Starting and
Charging/Battery/Testing and Inspection/Component Tests and General Diagnostics/Battery Test. If the voltage is low, repair the charging
system, test and charge, 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 or
more of these DTCs.
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures See: Body and Frame/Air Bag(s) Arming and
Disarming/Service and Repair and General Troubleshooting Information See: Restraints and Safety Systems/Air Bag Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes.
- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS
unit software See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Programming and Relearning/SRS Unit Update,
and retest.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to ON (II), then wait for 10 seconds.
3. Check for DTCs with the HDS.
Is DTC 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, or 58-xx indicated?
YES -
Faulty SRS unit; replace the SRS unit See: Relays and Modules/Relays and Modules - Restraints and Safety Systems/Air Bag Control
Module/Service and Repair/SRS Unit Replacement.?
NO -
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.?
