Gauge Relay: 3.5RL
Remove gauge relay from underhood relay box "C". Underhood relay box "C" is located left front of engine compartment. Check for continuity between terminals No. 1 and 2. Continuity should not exist. Check for continuity between terminals No. 3 and 5, and between terminals No. 1 and 4. Continuity should exist. Using jumper wires, connect terminal No. 3 to battery voltage and terminal No. 5 to ground. See Fig 1. If continuity does not exists between terminals No. 1 and 2, replace relay.