Indicator Does Not Operate Properly
- If low coolant indicator does not light with low coolant level, go to step 3). If low coolant indicator lights with low coolant level, then low coolant indicator is operating properly. If low coolant indicator is always lit with coolant level okay, disconnect low coolant switch connector. Turn ignition switch to RUN position.
- If low coolant indicator goes out, replace low coolant switch. If low coolant indicator remains lit, check for short to ground in Gray or Yellow/Black wires. If Gray or Yellow/Black wires are okay, replace instrument cluster.
- Disconnect low coolant switch connector. Turn ignition switch to RUN position. Connect a jumper wire between low coolant switch connector terminal "A" (Gray) and ground. If low coolant indicator does not light, check for open in Gray or Yellow/Black wires. If Gray or Yellow/Black wires are okay, replace instrument cluster.
- If low coolant indicator lights, connect a jumper wire between low coolant switch connector terminals "A" (Gray wire) and "B" (Black wire). If low coolant indicator remains lit, replace low coolant switch. If low coolant indicator goes out, repair open in Black wire.