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.
1998 Infiniti QX4FACTORY OEM SERVICE PROCEDURE
Remote Control Door Lock/Unlock Function Inoperative
NOTE:
If no problem exists after performing the following tests, replace remote controller. When remote controller is replaced, all remote controllers that are to be used with this system MUST be reprogrammed at the same time. See PROGRAMMING REMOTE CONTROLLER
.
If doors cannot be locked or unlocked using remote controller, perform the following and repair as necessary:
- Perform REMOTE CONTROLLER BATTERY CHECK under SYSTEM TESTS.
- Perform MULTI-REMOTE CONTROL SYSTEM ANTENNA CHECK under SYSTEM TESTS.
- Perform KEY-IN SWITCH CIRCUIT CHECK under SYSTEM TESTS.
- Perform DOOR SWITCH CIRCUIT CHECK under SYSTEM TESTS.
- Perform DOOR UNLOCK SENSOR CIRCUIT CHECK under SYSTEM TESTS.
- Perform POWER SUPPLY & GROUND CIRCUIT CHECK under SYSTEM TESTS.
Factory Service Tools
Use the Manual With the Right Hardware
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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.