Diesel Data: Automotive Repair

81-63




SRS DTC Troubleshooting: 81-4x, 81-63, 81-64

DTC 81-4x ("x" can be 0 thru 9 or A thru F), 81-63, 81-64 :

Internal the Failure of the ODS Unit

NOTE:

- Before doing this troubleshooting procedure, review SRS Precautions and Procedures Service and Repair and General Troubleshooting Information 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 SRS Unit Update, and retest.

1. Clear the DTC memory.

2. Turn the ignition switch to 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 81-4x, 81-63, or 81-64 indicated?.

YES -

Go to step 3.

NO -

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.�

3. Do the ODS unit initialization ODS Unit Initialization.

4. Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator go off ?

YES -

The system is OK at this time.�

NO -

Go to step 5.

5. Replace the ODS unit ODS Unit Replacement, then clear the DTC.

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

Does the SRS indicator go off ?

YES -

The system is OK at this time.�

NO -

Replace the SRS unit SRS Unit Replacement.�