83-26

SRS DTC Troubleshooting: 83-26

DTC 83-26: No Signal From the Front Passenger's Weight Sensor (rear outer side) (4-door)

NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures Technician Safety Information and General Troubleshooting Information. Initial Inspection and Diagnostic Overview

1. Clear the DTC memory. Initial Inspection and Diagnostic Overview

2. Read the DTC. Initial Inspection and Diagnostic Overview

Is DTC 83-26 indicated?
YES - Go to step 3.

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview


3. From INSPECTION menu on the HDS, select SWS DTC CHECK.

Is another DTC also indicated?
YES -
- DTC 26-11: Short to power in front passenger's weight sensor (rear outer side) power circuit; replace the ODS unit harness.

- DTC 26-12: Short to ground in the front passenger's weight sensor (rear outer side) power circuit. Go to step 4.

- DTC 26-13: Open in the front passenger's weight sensor (rear outer side) output circuit. Go to step 11.

- DTC 26-14: Short to ground in the front passenger's weight sensor (rear outer side) output circuit. Go to step 19.


NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview


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

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

6. Read the DTC.

Is DTC 26-12 indicated?
YES - Go to step 7.

NO - Faulty front passenger's weight sensor (rear outer side); replace the front passenger's seat frame including all four front passenger's weight sensors. Front Passengers Weight Sensor Replacement (4-Door)






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

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






9. Measure the resistance between the terminal No. 6 of the ODS unit harness 18P connector and body ground. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?
YES - Go to step 10.

NO - Short to ground in the ODS unit harness; replace the ODS unit harness.






10. Measure the resistance between the terminals No. 6 and No. 16 of the ODS unit harness 18P connector. 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

NO - Short to ground in the ODS unit harness; replace the ODS unit harness.






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

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

13. Read the DTC.

Is DTC 26-13 indicated?
YES - Go to step 14.

NO - Faulty front passenger's weight sensor (rear outer side); replace the front passenger's seat frame including all four front passenger's weight sensors. Front Passengers Weight Sensor Replacement (4-Door)


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

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






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

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






18. Measure the voltage between the terminal No. 11 of the ODS unit harness 18P connector and body ground. There should be less than 0.2 V.

Is the voltage as specified?
YES - Faulty ODS unit; replace the ODS unit. ODS Unit Replacement

NO - Short to power in the ODS unit harness; replace the ODS unit harness.






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

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






21. Read the DTC.

Is DTC 26-14 indicated?
YES - Go to step 22.

NO - Faulty front passenger's weight sensor (rear outer side); replace the front passenger's seat frame including all four front passenger's weight sensors. Front Passengers Weight Sensor Replacement (4-Door)


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

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






24. Measure the resistance between the terminal No. 11 of the ODS unit harness 18P connector and body ground. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?
YES - Go to step 25.

NO - Short to ground in the ODS unit harness; replace the ODS unit harness.






25. Measure the resistance between the terminals No. 11 and No. 16 of the ODS unit harness 18P connector. 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

NO - Short in the ODS unit harness; replace the ODS unit harness.