Fuel Level Indicator
- Disconnect wiring connector from terminals at sender unit. Check terminals for possible corrosion or undercoating and clean as necessary. Connect 12-volt test light, or positive lead of voltmeter to lead which was disconnected from sender.
- Connect other test lead to a good known ground. With ignition on, a flashing light or fluctuating voltmeter will indicate instrument voltage regulator is operating and that gauge indicator circuit is not open.
- If light stays on, or voltage reading is steady, replace IVR. If no voltage is indicated by meter or test light, check IVR for proper ground, or open circuit across IVR.