DTC 81-62

DTC 81-61: No Signal From the ODS Unit

DTC 81-62: Non Stipulated Data From the ODS Unit

NOTE:
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.
- 2-door: 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 and retest.

1. Clear the DTC memory.
2. Read the DTC.

Is DTC 81-61 or 81-62 indicated?

YES - Go to step 3.

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Troubleshooting Intermittent Failures If another DTC is indicated, troubleshoot the DTC.

3. Check the connection between the ODS unit harness 18P connector (A) and the ODS unit.






Is the connection OK?

YES - Go to step 4.

NO - Repair the poor connection and retest. If DTC 81-61 or 81-62 is still present, go to step 4.

4. Turn the ignition switch to LOCK (0).
5. Check the No. 12 (7.5 A) fuse in the driver's under-dash fuse/relay box.

Is the fuse OK?

YES - Go to step 6.

NO - Replace the fuse, then turn the ignition switch to ON (II). If the fuse blows again, check for a short in the No. 12 (7.5 A) fuse circuit (dashboard wire harness, SRS floor wire harness, or ODS unit harness).

6. Disconnect the ODS unit harness 18P connector (A) from the ODS unit.






7. Turn the ignition switch to ON (II).
8. Measure the voltage between the No. 1 terminal of the ODS unit harness 18P connector and body ground. There should be battery voltage.






Is there battery voltage?

YES - Go to step 9.

NO - Open in the SRS floor wire harness or ODS unit harness; replace the faulty harness.

9. Turn the ignition switch to LOCK (0).
10. Measure the resistance between No. 12 terminal of ODS unit harness 18P connector and body ground. There should be 0-1.0 ohms.






Is the resistance as specified?

YES - Go to step 11.

NO - Open in the SRS floor wire harness or ODS unit harness, or poor connection at the ODS unit harness 18P connector and ODS unit. Check the connection; if the connection is OK, replace the faulty harness.

11. Do the battery terminal disconnection procedure, then wait for 3 minutes.
12. Disconnect SRS unit connector B (39P) from the SRS unit.
13. Measure the resistance between the No. 1 terminal of SRS unit connector B (39P) and body ground. There should be an open circuit or at least 1 Mohms.






Is the resistance as specified?

YES - Go to step 14.

NO - Short in the SRS floor wire harness or ODS unit harness; replace the faulty harness.

14. Measure the resistance between the No. 1 terminal of SRS unit connector B (39P) and the No. 7 terminal of ODS unit harness 18P connector. There should be 0-1.0 ohms






Is the resistance as specified?

YES - Faulty ODS unit or SRS unit; replace the ODS unit. If the problem is still present, replace the SRS unit.

NO - Open in the SRS floor wire harness or ODS unit harness; replace the faulty harness.