DTC 71-2x
DTC 71-2x ("x" can be 0 thru 9 or A thru F): Short in the Driver's Seat Position SensorNOTE:
- 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), then wait for 10 seconds.
3. Read the DTC.
Is DTC 71-2x 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. Turn the ignition switch to LOCK (0), then wait for 10 seconds.
5. Manual seat: Remove the recline cover.
6. Disconnect the driver's seat wire harness or seat position sensor harness 2P connector (A) from the driver's seat position sensor.
7. Turn the ignition switch to LOCK (0), then wait for 10 seconds.
8. Turn the ignition switch to ON (II), then wait for 10 seconds.
9. Read the DTC.
Is DTC 71-2x indicated?
YES - Go to step 10.
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.
10. Turn the ignition switch to LOCK (0).
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. 23 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 - 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 - Short in the SRS floor wire harness, driver's seat wire harness, or seat position sensor harness; replace the faulty harness.