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.
2018 Ford Focus S, Automatic DCT TransFACTORY OEM SERVICE PROCEDURE
Section 272 (Exterior Lighting (1 Of 2))
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Exterior Lighting - Overview
- Exterior Lighting - System Operation and Component Description
- System Operation - Headlamps
- System Operation - DRL
- System Operation - Autolamps
- System Operation - Stoplamps
- System Operation - Turn Signal and Hazard Lamps
- System Operation - Parking, Rear, and License Plate Lamps
- System Operation - Approach Detection
- System Operation - Fog Lamps
- System Operation - Reversing Lamps
- System Operation - Trailer Lamps
- Component Description
- Diagnosis And Testing
- Autolamps
- Daytime Running Lamps (DRL)
- Fog Lamps
- DTC Chart: BCM
- Symptom Chart: Fog Lamps
- Pinpoint Tests
- Pinpoint Test A : Both Front Fog Lamps Are Inoperative
- Pinpoint Test B : An Individual Front Fog Lamp Is Inoperative
- Pinpoint Test C : One Or Both Front Fog Lamps Are On Continuously
- Pinpoint Test D : Both Rear Fog Lamps Are Inoperative
- Pinpoint Test E : An Individual Rear Fog Lamp Is Inoperative
- Pinpoint Test F : The Rear Fog Lamps Are On Continuously
- Headlamps
- DTC Charts
- Symptom Chart: Headlamps
- Pinpoint Tests
- Pinpoint Test A : One Or Both Low Beams Is Inoperative
- Pinpoint Test B : One Or Both High Beams Is Inoperative
- Pinpoint Test C : One Or Both Low Beams Are On Continuously
- Pinpoint Test D : One Or Both High Beams Are On Continuously
- Pinpoint Test E : The Flash-To-Pass Feature Is Inoperative
- Pinpoint Test F : The Automatic High Beam Feature Is Inoperative
- Pinpoint Test G : U0100:00
- Pinpoint Test H : U0101:00
- Pinpoint Test I : U0121:00
- Pinpoint Test J : U0122:00
- Pinpoint Test K : U0140:00
- Pinpoint Test L : U0151:00
- Pinpoint Test M : U0155:00
- Pinpoint Test N : U0212:00
- Pinpoint Test O : U023A:00
- Pinpoint Test P : The Adaptive Front Lighting/Automatic Headlamp Leveling Is Inoperative/Does Not Operate Correctly
- Pinpoint Test Q : C1A03:29, C1A05:29
- Pinpoint Test R : B103C:01, B103C:55, B103C:96, B103D:01, B103D:55, B103D:96
- Pinpoint Test S : B14E5:01, B14E5:08, B14E5:1C, B14E5:49, B14E5:55, B14E5:61, B14E7:01, B14E7:08, B14E7:1C, B14E7:49, B14E7:55, B14E7:61
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.
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