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 1488 (WARNING SYSTEM - SIDE VISION & REAR VISION)DIAGNOSIS AND TESTINGBLIND SPOT MONITORINGSYMPTOM TABLE

2010 Mercury Mariner Hybrid, AWD

Symptom Table

2010 Mercury Mariner Hybrid, AWDSECTION Symptom Table

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM TABLE

Condition	Possible Sources	Action
BLIS™ is inoperative/does not operate correctly or poor performance and no message center warning message or warning LED indicators present	Wiring, terminals and connectors BLIS™ is not configured on with the scan tool IPC SOD-L SOD-R Vehicle speed signal	GO to PINPOINT TEST A .
The CTA system is inoperative/does not operate correctly or poor performance and no warning LED indicators present	Wiring, terminals and connectors CTA system is not configured on with the scan tool IPC PAM SOD-L SOD-R Vehicle speed signal	GO to PINPOINT TEST B .
The exterior mirror BLIS™/CTA LED does not illuminate when the tone sounds for the CTA system	Wiring, terminals and connectors PAM SOD-L SOD-R Vehicle speed signal	GO to PINPOINT TEST B .
The left or right exterior mirror BLIS™/CTA LED appears dim or does not illuminate with no DTC or message in the message center present	Wiring, terminals and connectors SOD-L SOD-R Exterior mirror BLIS™/CTA LED	GO to PINPOINT TEST I .
The left or right exterior mirror BLIS™/ CTA LED is constantly on with no DTC or message in the message center present	Wiring, terminals and connectors SOD-L SOD-R Exterior mirror BLIS™/CTA LED	GO to PINPOINT TEST D .
The left or right exterior mirror BLIS™/CTA LED is constantly on and a message in the message center is present, but no DTCs are recorded	Wiring, terminals and connectors SOD-L SOD-R	GO to PINPOINT TEST C .
The SOD-L does not respond to the scan tool	Wiring, terminals and connectors SOD-L SOD-R	REFER to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article to diagnose the module communication network.
The SOD-R does not respond to the scan tool or cannot be configured	Wiring, terminals and connectors SOD-R	GO to PINPOINT TEST E .
The message center displays a blocked sensor message	Dirt, ice, or snow covered rear bumper fascia quarter panel SOD-L SOD-R	GO to PINPOINT TEST F .
The BLIS™ or the CTA system cannot be turned off in message center	Wiring, terminals and connectors IPC	GO to PINPOINT TEST G .

RENDER: 1.0x

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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.