Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA20043.5RLREPAIR AND DIAGNOSISELECTRICALGAUGESINSTRUMENT PANELSYSTEM TESTSFUEL GAUGE
2004 Acura 3.5RL
Fuel Gauge
2004 Acura 3.5RLSECTION Fuel Gauge
CAUTION:
Failure to turn ignition switch to OFF position before fuel gauge pointer reaches "F" mark may damage fuel gauge. Fuel gauge can be damaged if battery voltage is applied directly to gauge terminals.
- Check No. 13 METER fuse (7.5-amp) located in underdash fuse/relay box, behind left kick panel. Check METER fuse (15-amp), located in underhood fuse/relay box. Check gauge relay located at relay box, at left front of engine compartment. See GAUGE RELAY under COMPONENT TESTS. Remove rear seat cushion. Remove fuel tank access cover. Disconnect 3-pin fuel gauge sending unit connector.
- Using DVOM, check for voltage between fuel gauge sending unit 3-pin connector terminal No. 1 (Black wire) and terminal No. 2 (Blue/Green wire). Turn ignition switch to ON position. If 5-8 volts exists, go to next step. If 5-8 volts does not exist, check for poor connections or open circuit in Blue/Green wire between fuel gauge and fuel gauge sending unit. See WIRING DIAGRAMS . Check for open circuit in Black wire between fuel gauge sending unit and ground connection G652 located at left front corner of trunk. Repair as necessary.
- Turn ignition switch to OFF position. Connect a fused jumper wire between fuel gauge sending unit 3-pin harness connector terminals No. 1 (Black wire) and No. 2 (Blue/Green wire). Turn ignition switch to ON position. If fuel gauge pointer does not move toward "F" mark on gauge, replace fuel gauge. See INSTRUMENT CLUSTER under REMOVAL & INSTALLATION. If fuel gauge pointer moves toward "F" mark on gauge, check fuel gauge sending unit. See FUEL GAUGE SENDING UNIT under COMPONENT TESTS.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.