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 MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 489 (HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS)DIAGNOSIS AND TESTINGLOCKS, LATCHES AND ENTRY SYSTEMS - MODULE CONTROLLEDSYMPTOM CHART

2010 Mercury Mariner Hybrid, AWD

Symptom Chart

2010 Mercury Mariner Hybrid, AWDSECTION Symptom Chart

WARNING: This page is about a different car, the 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
A single/more than one door lock is inoperative	Door lock control switches Door lock actuator Door lock hardware Circuitry Vehicle security module	GO to PINPOINT TEST E .
The doors do not lock/unlock using the remote keyless entry keypad	Remote keyless entry (RKE) keypad Vehicle security module	GO to PINPOINT TEST F .
The doors do not lock/unlock using the remote keyless entry transmitter	Remote keyless entry (RKE) transmitter battery RKE transmitter RKE transmitter programming Aftermarket system High power devices TV/radio transmission towers Vehicle security module	GO to PINPOINT TEST G .
The auto-lock does not operate correctly	Door ajar switches UART-based protocol (UBP) communications network Vehicle security module	GO to PINPOINT TEST H
Panic feature is inoperative/does not operate correctly	Remote keyless entry (RKE) transmitter Circuitry Vehicle security module	GO to PINPOINT TEST I .
The remote keyless entry keypad illumination is inoperative	Remote keyless entry (RKE) keypad Vehicle security module	GO to PINPOINT TEST J .
The remote keyless entry transmitter is out of synchronization	Remote keyless entry (RKE) transmitter Vehicle security module RKE transmitter button pressed a substantial amount of times while outside the range of the vehicle	GO to PINPOINT TEST K .
The power door unlock inhibit feature is inoperative	Feature not enabled	ENABLE the feature.
The power door unlock inhibit feature is inoperative	Vehicle security module	INSTALL a new vehicle security module. REFER to MULTIFUNCTION ELECTRONIC MODULES .
The smart unlock does not operate correctly	Door lock control switches Driver door ajar switch UART-based protocol (UBP) communications network Key-in-ignition switch Vehicle security module	GO to PINPOINT TEST L .
The remote keyless entry transmitter has poor range performance	Aftermarket system High power devices TV/radio transmission towers Remote keyless entry (RKE) transmitter Vehicle security module	GO to PINPOINT TEST M .

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.