DTC 85-4x

DTC 85-4x, 85-5x ("x" can be 0 thru 9 or A thru F): Internal Failure of the OPDS Unit

DTC 85-63: Model ID Code or Variation Code Inconsistent

DTC 85-64: ECU Serial ID Code Inconsistent

NOTE: An incorrect OPDS unit can cause DTC 85-63.

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 85-4x, 85-5x, 85-63, or 85-64 indicated?

YES - Go to step 3.

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

3. Initialize the OPDS unit.
4. 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 go off?

YES - The system is OK.

NO - Replace the OPDS unit and retest.