All Gauges Inoperative

Use this fault-tracing procedure if no instrument panel gauges working.

Sources of Faults:





- Fuse has blown.
- Open-circuit in 15 V supply.
- Open-circuit in signal ground.

Start fault-tracing at step 1, below.

Check Instrument Panel Warning Lights:





- Ignition on.
- Check if warning lights come on.

If warning lights come on there is an open-circuit in signal ground lead between instrument panel terminal # A15 and ground point 31/51. Check signal ground lead for open-circuit. Checking Cables and Terminals

If warning lights do not come on, check fuse. Fuse
- If fuse is OK, the fault is in the 15 V supply lead between terminal # A18 and terminal 3 and relay in discharge relay 15 V supply 2/31.
- Check 15 V supply lead for open-circuit. Checking Cables and Terminals