81-78

SRS DTC Troubleshooting: 81-71, 81-78

DTC 81-71, 81-78:

ODS Unit Not Calibrated

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), then wait for 10 seconds.

3. Read the DTC.

Is DTC 81-71 or 81-78 indicated?

YES -

Go to step 4.

NO -

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

4. Do the front passenger's weight sensor initialization ODS Unit Initialization.

5. Turn the ignition switch to LOCK (0), then wait for 10 seconds.

6. Turn the ignition switch to ON (II), then wait for 10 seconds.

7. Read the DTC.

Is 81-71 or 81-78 DTC indicated?

YES -

Faulty ODS unit, replace the ODS unit ODS Unit Replacement, then clear the DTC. If the DTC is still present, replace the SRS unit SRS Unit Replacement.�

NO -

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures Reading and Clearing Diagnostic Trouble Codes. If another DTC is indicated, troubleshoot the DTC.�