SRS Indicator Light Doesn't Come On

The SRS Indicator Light 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 2.

NO - Go to step 9.




2. Turn the ignition switch OFF, then disconnect gauge assembly connector A (14P) from the gauge assembly.




3. Check resistance between the No.9 (or No.10) terminals of gauge assembly connector A (14P) and body ground. There should be 0 - 1.0 ohm.

Is resistance as specified?

YES - Go to step 4.

NO - Open in the BLK wire of dashboard wire harness A or faulty body ground terminal. If the body ground terminal is OK, replace dashboard wire harness A.




4. Disconnect gauge assembly connector C (18P) from the gauge assembly.




5. Check for voltage between the No.17 terminal of gauge assembly connector C (18P) and body ground within the first 6 seconds after turning the ignition switch ON (II). There should be 8.5 V or less.

Is voltage as specified?

YES - Blown SRS indicator light bulb or faulty SRS indicator light circuit in the gauge assembly. Check for a blown SRS indicator light bulb. If the SRS indicator light bulb is OK, replace the gauge assembly.

NO - Go to step 6.

6. Turn the ignition switch OFF.




7. Disconnect the SRS main harness 8P connector (A) from the SRS unit.




8. Connect a voltmeter between the No. 17 terminal (+) of gauge assembly connector C (18P) 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 in the SRS main harness; replace the faulty harness.

9. Turn the ignition switch OFF. Check the No.9 (10 A) fuse in the driver's under-dash fuse/relay box.

Did fuse No.9 (10 A) blow?

YES - Go to step 12.

NO - Go to step 10.




10. Disconnect gauge assembly connector A (14P) from the gauge assembly.




11. Connect a voltmeter between the No.7 terminal (+) of gauge assembly connector A (14P) and body ground. Turn the ignition switch ON (II), and measure voltage. There should be battery voltage.

Is there battery voltage?

YES - Faulty SRS indicator light circuit in the gauge assembly or poor contact at gauge assembly connector A (14P) and the gauge assembly; if the connection is OK, replace the gauge assembly.

NO - Open in the driver's under-dash fuse/relay box No. 9 (10 A) fuse line, open in the YEL wire of dashboard wire harness A or in the left side wire harness. If the driver's under-dash fuse/relay box is OK, replace the faulty harness.

12. Replace the No.9 (10 A) fuse, and check to see if the SRS indicator light comes on.

Does the SRS indicator light come on?

YES - The system is OK at this time.

NO - Short to ground in the driver's under-dash fuse/relay box No.9 (10 A) fuse line; continue troubleshooting.