DTC 13-4
DTC 13-4: Faulty Power Supply to the Driver's Side Impact Sensor1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.
Does the SRS indicator stay on?
YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, go to the DTC Troubleshooting Index. Diagnostic Trouble Code Descriptions
3. Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.
4. Disconnect the driver's side airbag and front passenger's side airbag 2P connectors (A), and disconnect both seat belt buckle tensioner 4P connectors (B).
5. Disconnect the floor wire harness 2P connector (A) from the driver's side impact sensor (B).
6. Disconnect SRS unit connector B (18P) from the SRS unit.
7. Check resistance between the No. 8 terminal of SRS unit connector B (18P) and body ground. There should be an open circuit or at least 1 MOhm.
Is the resistance as specified?
YES - Go to step 8.
NO - Short to ground in the floor wire harness; replace the floor wire harness.
8. Check resistance between the No. 8 and No. 15 terminals of SRS unit connector B (18P). There should be an open circuit or at least 1 MOhm.
Is the resistance as specified?
YES - Faulty driver's side impact sensor or SRS unit; replace the driver's side impact sensor. If the problem is still present, replace the SRS unit.
NO - Short in the floor wire harness; replace the floor wire harness.