DTC 81-4x

DTC 81-4x (81-40 to 81-49, 81-4A to 81-4F), 81-5x (81-50 to 81-59, 81-5A to 81-5F), 81-63, 81-64: Internal Failure of the Front Passenger's Weight Sensor Unit/ODS Unit)

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, 87-63, or 87-64 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. Calibrate the seat weight sensor unit ('04-05 models) or ODS unit ('06-07 models).
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 seat weight sensor unit ('04-05 models) or ODS unit ('06-07 models).
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.