83-24

SRS DTC Troubleshooting: 83-24

DTC 83-24:

No Signal From the Front Passenger's Weight Sensor (front outer side)

NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures Service and Repair and General Troubleshooting Information Reading and Clearing Diagnostic Trouble Codes.

1. Clear the DTCs with HDS Reading and Clearing Diagnostic Trouble Codes.

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

3. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Is DTC 83-24 indicated?

YES -

Go to step 4.

NO -

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

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 24-11: Short to power in front passenger's weight sensor (front outer side) power circuit; replace the ODS unit harness, then clear the DTC.�
- DTC 24-12: Short to ground in the front passenger's weight sensor (front outer side) power circuit. Go to step 5.
- DTC 24-13: Open in the front passenger's weight sensor (front outer side) output circuit. Go to step 14.
- DTC 24-14: Short to ground in the front passenger's weight sensor (front outer side) output circuit. Go to step 24.

NO -

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

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

6. Disconnect the ODS unit harness 3P connector (A) from the front passenger's weight sensor (front outer side).

7. Clear the DTCs with HDS Reading and Clearing Diagnostic Trouble Codes.

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

9. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Is DTC 24-12 indicated?

YES -

Go to step 10.

NO -

Faulty front passenger's weight sensor (front outer side); replace the front passenger's seat frame including all four front passenger's weight sensors Service and Repair, then clear the DTC.�

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

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

12. Measure the resistance between body ground and ODS unit harness 18P connector terminal No. 5. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?

YES -

Go to step 13.

NO -

Short to ground in the ODS unit harness; replace the ODS unit harness, then clear the DTC.�

13. Measure the resistance between ODS unit harness 18P connector terminals No. 5 and No. 15. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?

YES -

Faulty ODS unit; replace the ODS unit ODS Unit Replacement, then clear the DTC.�

NO -

Short to ground in the ODS unit harness; replace the ODS unit harness, then clear the DTC.�

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

15. Swap the connections between the front outer side front passenger's weight sensor and the rear outer side sensor.

16. Clear the DTCs with HDS Reading and Clearing Diagnostic Trouble Codes.

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

18. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Is DTC 24-13 indicated?

YES -

Go to step 19.

NO -

Faulty front passenger's weight sensor (front outer side); replace the front passenger's seat frame including all front passenger's weight sensors Service and Repair, then clear the DTC.�

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

20. Disconnect the front passenger's weight sensor (front outer side) connector (A) and front passenger's weight sensor (rear outer side) connector (B).

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

22. Turn the ignition switch to ON (II).

23. Measure the voltage between body ground and ODS unit harness 18P connector terminal No. 10. There should be less than 1.0 V.

Is the voltage as specified?

YES -

Faulty ODS unit; replace the ODS unit ODS Unit Replacement, then clear the DTC.�

NO -

Short to power in the ODS unit harness; replace the ODS unit harness, then clear the DTC.�

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

25. Disconnect the ODS unit harness 3P connector (A) from the front passenger's weight sensor (front outer side).

26. Clear the DTCs with HDS Reading and Clearing Diagnostic Trouble Codes.

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

28. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Is DTC 24-14 indicated?

YES -

Go to step 29.

NO -

Faulty front passenger's weight sensor (front outer side); replace the front passenger's seat frame including all four front passenger's weight sensors Service and Repair, then clear the DTC.�

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

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

31. Measure the resistance between body ground and ODS unit harness 18P connector terminal No. 10. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?

YES -

Go to step 32.

NO -

Short to ground in the ODS unit harness; replace the ODS unit harness, then clear the DTC.�

32. Measure the resistance between ODS unit harness 18P connector terminals No. 10 and No. 15. There should be an open circuit or at least 1 MOhms.