DTC 71-22
DTC 71-22: Short to Power in Driver's Seat Position Sensor1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check the SRS indicator comes on for about 6 seconds and then goes off.
Does the SRS indicator stay on, and is DTC 71-22 indicated?
YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC troubleshooting index.
3. Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.
4. Disconnect the floor wire harness 2P connector from the driver's seat position sensor (A).
5. Disconnect both seat belt tensioner 4P connectors.
6. Disconnect SRS unit connector B from the SRS unit.
7. Check the voltage between the No.16 terminal of SRS unit connector B (28P) and body ground, and between the No.28 terminal and body ground. There should be 1 V or less.
Is the voltage 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 to power in the floor wire harness or seat position sensor harness; replace the faulty harness.