Operation CHARM: Car repair manuals for everyone.

SRS Indicator Stays On, But No DTCs Are Stored

SRS indicator stays on, but no DTCs are stored

NOTE:
- A new SRS unit must sense the entire system is OK before completing its initial self-test. The most common cause of an incomplete self-test is the failure to replace all deployed parts after a collision, in particular seat belt tensioners, or seat belt buckle tensioners.
- A battery/system voltage above 15.2 V can cause the SRS indicator to come on without storing any DTCs.

1. Disconnect the battery negative cable, and wait for 3 minutes.




2. Disconnect SRS unit connector B (8P) from the SRS unit.




3. Remove the gauge assembly. Disconnect gauge assembly connector A (22p*) or (20p*) from the gauge assembly.
* 1: '02-04 models
* 2: '05-06 models




4. Check resistance between the No. 15" or No. 13" terminal of gauge assembly connector A (22p*) or (20p*) and the No. 5 terminal of SRS unit connector C (8P). There should be 1 Ohm or less.
* 1:'02-04 models
* 2: '05-06 models

Is the resistance as specified?

YES - Go to step 5.

NO - Open in floor wire harness or dashboard wire harness; replace the faulty wire harness.

5. Reconnect the battery negative cable.
6. Reconnect gauge assembly connector A (22p*) or (20p*) to the gauge assembly.
* 1: '02-04 mode Is
* 2: '05-06 models

7. Turn the ignition switch ON (II).




8. Install a jumper wire between the No. 15" or No. 13" terminal of the gauge assembly connector A (22p*) or (20p*) and the No. 7" or No. 6-2 terminal of the gauge assembly connector B (18p*) or (16p*). The SRS indicator should go off.
* 1: 02-04 models
* 2: 05-06 models

Does the SRS indicator go off?

YES - Faulty SRS unit or poor connection at SRS unit connector C (8P) and the SRS unit; check the connection. If the connection is OK, replace the SRS unit.

NO - Faulty SRS indicator circuit in the gauge assembly or poor connection at gauge assembly connector A or B; check the connections. If the connectors are OK, replace the gauge assembly.