83-21

SRS DTC Troubleshooting: 83-21

DTC 83-21:

No Signal From the Outer Side Front Passenger's Weight Sensor

NOTE:

- Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed Service and Repair.
- Before doing this troubleshooting procedure review SRS Precautions and Procedures Service and Repair and General Troubleshooting Information Reading and Clearing Diagnostic Trouble Codes and Battery Terminal Disconnection and Reconnection Battery Terminal Disconnection And Reconnection.
- These SWS DTCs are cleared by turning the ignition switch to LOCK(0).

1. Clear the DTC memory.

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

3. Read the DTC.

Is DTC 83-21 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. From the HDS Main Menu, select SRS, then Inspection. In the Inspection Menu, select SWS DTC CHECK.

Is an SWS DTC also indicated?

YES -

- DTC 21-11: Short to power in the outer side front passenger's weight sensor power circuit. Go to step 5.
- DTC 21-12: Short to ground in the outer side front passenger's weight sensor output circuit. Go to step 11.

NO -

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

5. Turn the ignition switch to LOCK (0).

6. Disconnect the front passenger's seat wire harness 2P connector (A) from the outer side front passenger's weight sensor (B).





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

8. Clear the DTC memory.

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

10. From the HDS Main Menu, select SRS, then Inspection. In the Inspection Menu, select SWS DTC CHECK.

Is SWS DTC 21-11 indicated?

YES -

Short to power in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC. If the DTC does not clear, replace the ODS unit Service and Repair.

NO -

Faulty outer side front passenger's weight sensor; replace the outer side front passenger's weight sensor Service and Repair, then clear the DTC.

11. Turn the ignition switch to LOCK (0).

12. Disconnect the front passenger's seat wire harness 2P connector (A) from the outer side front passenger's weight sensor (B).





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

14. Clear the DTC memory.

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

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

17. From the HDS Main Menu, select SRS, then Inspection. In the Inspection Menu, select SWS DTC CHECK.

Is SWS DTC 21-12 indicated?

YES -

Go to step 18.

NO -

Faulty outer side front passenger's weight sensor; replace the outer side front passenger's weight sensor Service and Repair, then clear the DTC.

18. Turn the ignition switch to LOCK (0).

19. Measure the resistance between body ground and the front passenger's seat wire harness 2P connector terminal No. 3. There should be an open circuit or at least 1 MOhms.





Is the resistance as specified?

YES -

Faulty ODS unit; replace the ODS unit Service and Repair, then clear the DTC.

NO -

Short to ground in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.