Temperature Gauge: Testing and Inspection

TEMPERATURE GAUGE INDICATES HOT
1. Disconnect coolant temperature sender connector.

2. Turn ignition switch ON.
^ If gauge indicates HOT, check for short in sender wire or printed circuit board.
^ If gauge indicates COLD, replace coolant temperature sender.

TEMPERATURE GAUGE INDICATES COLD
1. Disconnect coolant temperature sender connector.

2. Ground coolant temperature sender wire. Turn ignition switch ON.
^ If gauge indicates COLD, check for open in sender wire or printed circuit board.
^ If gauge indicates HOT, replace coolant temperature sender.