DTC Troubleshooting: 13-4, 14-4

DTC 14-4:  Faulty Power Supply to the Front Passenger's Side Impact Sensor (With OPDS unit model)
DTC 13-4:  Faulty Power Supply to the Left Side Impact Sensor (Without OPDS unit model)

1.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 3.


NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures.


3.Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.

4.Disconnect the SDo and SPo connectors (1).

 

5.Disconnect the IPi connector (1) from the front passenger's (left) side impact sensor (A).

 

6.Disconnect the U2o connector (1) from the SRS unit (A).

 

7.Check resistance between the No. 9 terminal of U2o connector and body ground. There should be 1 MW or more.

 


Is the resistance as specified?


YES - Go to 8.


NO - Short to ground in the floor wire harness; replace the floor wire harness.n


8.Check resistance between the No. 9 and No. 16 terminals of U2o connector. There should be 1 MW or more.

 

Is the resistance as specified?


YES - Faulty front passenger's (left)  side impact sensor or  SRS unit; replace the front passenger's (left) side impact sensor. If the problem is still present, replace the SRS unit.n


NO - Short in the floor wire harness; replace the floor wire harness.n