Test 1: No Display
- Turn ignition on. If warning lights illuminate, go to step 3). If warning lights do not illuminate, check GAUGE fuse. If fuse is okay, repair open circuit between GAUGE fuse and instrument panel. If fuse is bad, replace fuse.
- Turn ignition on. If fuse blows, disconnect instrument panel connectors, replace fuse and retry. If fuse blows, repair short circuit between GAUGE fuse and instrument panel. If fuse is okay, replace power source unit and retest.
- Disconnect instrument panel connector "B". Check resistance between connector terminal No. 5 and ground. If continuity does not exist, repair open circuit between ground and terminal No. 5 and No. 12. If continuity exists, go to next step.
- Turn ignition on. Check voltage between connector terminal No. 1 (+) and terminal No. 5 and No. 12 (-). If battery voltage exists, replace power source unit and retest. If battery voltage does not exist, repair open circuit between GAUGE fuse and terminal No. 1.