DTC 81-64

DTC 81-4x, 81-5x, 85-4x, 85-5x ("x" can be 0 thru 9 or A thru F): Internal Failure of the OPDS/ODS Unit

DTC 81-63, 85-63: Model ID Code or Variation Code Inconsistent

DTC 81-64, 85-64: ECU Serial ID Code Inconsistent

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 81-4x, 81-5x, 81-63, 81-64, 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. Diagnostic Trouble Code Descriptions

3. Initialize the OPDS/ODS 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 at this time.

NO - Go to step 5.

5. Replace the OPDS/ODS unit.
6. 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 SRS unit.