SRS Indicator Light Doesn't Come On
SRS Indicator Circuit TroubleshootingThe SRS Indicator Doesn't Come On
1. Turn the ignition switch ON (II), and check to see if the other indicator lights come on (brake system, etc).
Do the other indicator lights come on?
YES - Go to step 5.
NO - Go to step 2.
2. Turn the ignition switch OFF, and check the No. 9 (7.5 A) fuse in the driver's under-dash fuse/relay box.
Is the fuse OK?
YES - Go to step 14.
NO - Go to step 3.
3. Replace the No. 9 (7.5 A) fuse, and check to see if the SRS indicator comes on.
Does the SRS indicator come on?
YES - The system is OK.
NO - Go to step 4.
4. Check for a short to ground between fuse No. 9 (7.5 A) and the gauge assembly, and repair. Make sure the SRS indicator comes on.
Does the SRS indicator come on?
YES - The system is OK.
NO - Short to ground in the gauge assembly; replace the circuit board in the gauge assembly.
5. Turn the ignition switch OFF.
6. Remove the gauge assembly.
7. Check for a blown SRS indicator bulb.
Is the SRS indicator bulb OK?
YES - Go to step 8.
NO - Blown SRS indicator bulb; replace the bulb.
8. Disconnect the dashboard wire harness A 18P connector (A) from the gauge assembly.
9. Connect a voltmeter between the No. 17 terminal (+) of the dashboard wire harness A 18P connector and body ground.
10. Turn the ignition switch ON (II), and measure voltage.
Is there 8.5 V or less for 6 seconds after the ignition switch has been turned ON (II)?
YES - Faulty SRS indicator circuit in the gauge assembly; replace the SRS indicator circuit board in the gauge assembly.
NO - Go to step 11.
11. Turn the ignition switch OFF.
12. Disconnect the SRS main harness ASP connector (A) from the SRS unit (B).
13. Connect a voltmeter between the No. 5 terminal (+) of the SRS main harness 8P connector and body ground. Turn the ignition switch ON (II), and measure voltage. There should be 0.5 V or less.
Is voltage as specified?
YES - Faulty SRS unit; replace the SRS unit.
NO - Short to power in the BLU wire of dashboard wire harness A or the SRS main harness; replace dashboard wire harness A or the SRS main harness.
14. Disconnect the dashboard wire harness A 14P connector (A) from the gauge assembly.
15. Connect the voltmeter between the No. 7 terminal of the dashboard wire harness A 14P connector and body ground. Turn the ignition switch ON (II), and measure voltage. There should be battery voltage.
Is there battery voltage?
YES - Go to step 16.
NO - Open in dashboard wire harness A; repair or replace dashboard wire harness A.
16. Turn the ignition switch OFF. Check resistance between the No. 9 (or No. 10) terminal of the dashboard wire harness A 14P connector and body ground. There should be 0 - 1.0 Ohm.
Is the resistance as specified?
YES - Faulty SRS indicator circuit in the gauge assembly; replace the SRS indicator circuit board in the gauge assembly.
NO - Open in dashboard wire harness A or body ground; check the body ground. If body ground is OK, repair or replace the dashboard wire harness A.