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 MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 172 (LANE KEEPING SYSTEM)DIAGNOSIS AND TESTINGLANE KEEPING SYSTEMSYMPTOM CHART(S)
2021 Ford Edge SE, 4WD
Symptom Chart(s)
2021 Ford Edge SE, 4WDSECTION Symptom Chart(s)
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
| Condition | Possible Causes | Action |
|---|---|---|
| A module does not communicate with the diagnostic scan tool | Fuse Wiring, terminals or connectors Module |
REFER to: Communications Network . |
| The lane keeping alert does not turn on or activate | Refer to the Pinpoint Test | GO to Pinpoint Test A |
| The lane keeping alert does not provide driver feedback once activated | Refer to the Pinpoint Test | GO to Pinpoint Test B |
| The display lines in the IPC do not turn green after the lane keeping alert is turned on | Road conditions |
NOTE:
The display lines are gray when the IPMA cannot detect lane marking(s) on the road in front of the vehicle. VERIFY the road conditions described under System Display. REFER to: Lane Keeping System - System Operation and Component Description . |
| The lane keeping alert provides early feedback on one side of the lane and late feedback on the other side of the lane | Dirty or cracked windshield | CLEAN and INSPECT the windshield in front of the camera. |
| Loose or incorrectly installed interior rear view mirror | INSPECT the interior rear view mirror for proper installation. REFER to: Interior Rear View Mirror . | |
| Camera alignment | Using a diagnostic scan tool, PERFORM the front camera alignment. | |
| Degraded performance from the lane keeping alert system | Dirty or cracked windshield | CLEAN and INSPECT the windshield in front of the camera. |
| Camera alignment | Using a diagnostic scan tool, PERFORM the front camera alignment. | |
| LANE KEEPING SYSTEM MALFUNCTION - SERVICE REQUIRED message in the IPC | SECM concern | RETRIEVE and REPAIR all SECM Diagnostic Trouble Codes (DTCs). REFER to: Power Steering . |
| FRONT CAMERA TEMPORARILY NOT AVAILABLE message in the IPC | Temporary temperature related condition | ALLOW the vehicle to warm up or REMOVE the vehicle from direct sunlight. RECHECK after 10 minutes. |
| FRONT CAMERA LOW VISIBILITY - CLEAN SCREEN message in the IPC | Dirty or cracked windshield | CLEAN and INSPECT the windshield in front of the camera. REPAIR or REPLACE the windshield as necessary if damage is found. |
| Dirt or debris in between the camera and the windshield | CLEAN the area between the front camera and the windshield. | |
| IPMA camera heated windshield element | INSPECT the IPMA camera heated windshield element for damage and DIAGNOSE any IPMA heater Diagnostic Trouble Codes (DTCs) that are present. | |
| FRONT CAMERA MALFUNCTION - SERVICE REQUIRED message in the IPC | Refer to the Pinpoint Test | GO to Pinpoint Test D |
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.