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.
1996 Infiniti Q45 BaseFACTORY OEM SERVICE PROCEDURE
Fuel Pump Control Module
- Disconnect fuel pump control unit connector, located above fuel tank at rear of vehicle. Install 3 jumper wires from unit side of harness, terminals No. 5, 6 and 7, to ECM side of harness, terminals "e", "f" and "g", respectively. See Fig 1 .
- Connect one, then 2 and finally 3 jumper wires as indicated in illustration. Using a DVOM, check voltage between terminals No. 4 and 7 as each jumper wire is connected. See Fig 1 . If voltage readings are not as indicated, replace fuel pump control unit.
Factory Service Tools
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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.
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