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 MANUALSINFINITI2013QX56 AWD V8-5.6L (VK56VD)REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTMEMORY POSITIONING SYSTEMSTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSLIFTING MOTORFRONT
2013 Infiniti QX56 AWD V8-5.6L (VK56VD)
Front
2013 Infiniti QX56 AWD V8-5.6L (VK56VD)SECTION Front
LIFTING MOTOR (FRONT)
Component Function Check
1. CHECK FUNCTION
1.Select "SEAT LIFTER FR" in "Active test" mode using CONSULT.
2.Check the lifting motor (front) operation.
Is the operation of relevant parts normal?
YES- INSPECTION END
NO- Perform diagnosis procedure. Refer to "Diagnosis Procedure" .
Diagnosis Procedure
1. CHECK LIFTING MOTOR (FRONT) INPUT SIGNAL
1.Turn ignition switch OFF.
2.Disconnect lifting motor (front) connector.
3.Turn ignition switch ON.
4.Perform "Active test" ("SEAT LIFTER FR") using CONSULT.
5.Check voltage between lifting motor (front) harness connector and ground.
Is the inspection result normal?
YES- Replace lifting motor (front) (built in seat cushion frame).
NO- GO TO 2.
2. CHECK LIFTING MOTOR (FRONT) CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect driver seat control unit connector.
3.Check continuity between driver seat control unit harness connector and lifting motor (front) harness connector.
4.Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES- Replace driver seat control unit.
NO- Repair or replace harness or connector.
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.