DTC 71-1x

DTC 71-1x ("x" can be 0 thru 9 or A thru F): Open in the Driver's Seat Position Sensor

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. Turn the ignition switch to ON (II), and wait for 10 seconds.
3. Read the DTC.

Is DTC 71-1x indicated?

YES - Go to step 4.

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.

4. Check the connection between the driver's seat wire harness or seat position sensor harness 2P connector and the driver's seat position sensor, and ground connection at G701.
5. Clear the DTC memory.
6. Read the DTC.

Is DTC 71-1x indicated?

YES - Go to step 7.

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.

7. Turn the ignition switch to LOCK (0), then wait for 10 seconds.
8. Manual seat: Remove the recline cover.
9. Disconnect the driver's seat wire harness or seat position sensor harness 2P connector (A) from the driver's seat position sensor.






10. Install a jumper wire between the No. 1 and the No. 2 terminals of the driver's seat wire harness or seat position sensor harness 2P connector.






11. Disconnect SRS unit connector B (39P) from the SRS unit.
12. Measure the resistance between the No. 23 terminal of SRS unit connector B (39P) and body ground. There should be 0 - 1.0 ohms.






Is the resistance as specified?

YES - Faulty driver's seat position sensor or SRS unit; replace the driver's seat position sensor. If the problem is still present, replace the SRS unit.

NO - Open in the SRS floor wire harness, driver's seat wire harness, or seat position sensor harness; replace the faulty harness.