SRS Indicator Stays on, But No DTCs Are Stored
SRS indicator stays on, but no DTCs are storedNOTE:
- 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.
- 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 A (28P) from the SRS unit.
3. Remove the gauge control module. Disconnect gauge control module connector A (20P) and gauge control module connector C (40P) from the gauge control module.
4. Check resistance between the No. 31 terminal of gauge control module connector C (40P) and the No. 11 terminal of SRS unit connector A (28P). There should be 0-1 ohm.
Is the resistance as specified?
YES - Go to step 5.
NO - Open in the dashboard wire harness; replace the dashboard wire harness.
5. Reconnect the battery negative cable.
6. Reconnect gauge control module connector A (20P) and C (40P) to the gauge control module.
7. Turn the ignition switch ON (II).
8. Install a jumper wire between the No. 2 terminal of gauge control module connector A (20P) and the No. 31 terminal of the gauge control module connector C (40P). The SRS indicator should go off.
Does the SRS indicator go off?
YES - Faulty SRS unit or poor connection at SRS unit connector A (28P) and the SRS unit; check the connection. If the connection is OK, replace the SRS unit.
NO - Faulty SRS indicator circuit in the gauge control module or poor connection at gauge control module connector A (20P) or C (40P); check the connection. If the connection is OK, replace the gauge control module.