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 MANUALSFORD2021TRANSIT-350 HD BASE, VAN CARGO EXTENDED, 3.5L ENG VIN 8, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 164 (EXTERIOR LIGHTING (1 OF 2))
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Section 164 (Exterior Lighting (1 Of 2))
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Section 164 (Exterior Lighting (1 Of 2))
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.
- Description And Operation
- Exterior Lighting - Overview
- Exterior Lighting - System Operation and Component Description
- Diagnosis And Testing
- Autolamps
- Daytime Running Lamps (DRL)
- DTC Chart: Body Control Module (BCM)
- Symptom Chart(s)
- Pinpoint Tests
- Pinpoint Test A : The DRL (Daytime Running Lamps) Are Inoperative - Led (Light Emitting Diode) Headlamps
- Pinpoint Test B : The DRL (Daytime Running Lamps) Are Always On - Led (Light Emitting Diode) Headlamps
- Pinpoint Test C : The DRL (Daytime Running Lamps) Are Inoperative Or Always On - Halogen Headlamps
- Fog Lamps
- Headlamps
- DTC Chart: BCM
- DTC Chart: BCMB (Auxiliary Lighting Control Module [ALCM])
- DTC Chart: SCCM
- DTC Chart: IPMA
- Symptom Chart(s)
- Pinpoint Tests
- Pinpoint Test A : One Or Both Upper Low Beams Is Inoperative - Vehicles With Halogen Headlamps
- Pinpoint Test B : One Or Both Lower Low Beams Is Inoperative - Vehicles With Halogen Headlamps
- Pinpoint Test C : One Or Both Low Beams Is Inoperative - Vehicles With Led (Light Emitting Diode) Headlamps
- Pinpoint Test D : Both Upper And Both Lower High Beams Are Inoperative - Vehicles With Halogen Headlamps
- Pinpoint Test E : One Or Both Upper High Beams Is Inoperative - Vehicles With Halogen Headlamps
- Pinpoint Test F : One Or Both Lower High Beams Is Inoperative - Vehicles With Halogen Headlamps
- Pinpoint Test G : One Or Both High Beams Is Inoperative - Vehicles With Led (Light Emitting Diode) Headlamps
- Pinpoint Test H : Both Upper And Both Lower Low Beams Are On Continuously - Vehicles With Halogen Headlamp
- Pinpoint Test I : One Or Both Upper Or Lower Low Beams Only Are On Continuously - Vehicles With Halogen Headlamps
- Pinpoint Test J : One Or Both Low Beams Are On Continuously - Vehicles With Led (Light Emitting Diode) Headlamps
- Pinpoint Test K : All High Beams Are On Continuously - Vehicles With Halogen Headlamps
- Pinpoint Test L : One Or Both Upper High Beams Are On Continuously - Vehicles With Halogen Headlamps
- Pinpoint Test M : Both Lower High Beams Are On Continuously - Vehicles With Halogen Headlamps
- Pinpoint Test N : One Or Both High Beams Are On Continuously - Vehicles With Led (Light Emitting Diode) Headlamps
- Pinpoint Test O : The Flash-To-Pass Feature Is Inoperative
- Pinpoint Test P : The Automatic High Beam Feature Is Inoperative
- Parking, Rear and License Plate Lamps
- DTC Chart: Body Control Module (BCM)
- Symptom Chart(s)
- Pinpoint Tests
- Pinpoint Test A : All The Parking Lamps Are Always On
- Pinpoint Test B : All Front Parking And, If Equipped, Roof Marker Bed Side Marker And Rear Bed Marker Lamps Are Inoperative
- Pinpoint Test C : All Front Parking And, If Equipped, Roof Marker Bed Side Marker And Rear Bed Marker Lamps Are Always On
- Pinpoint Test D : An Individual Front Parking Lamp Is Inoperative - Halogen Headlamps
- Pinpoint Test E : An Individual Front Parking Lamp Is Inoperative - Led (Light Emitting Diode) Headlamps
- Pinpoint Test F : An Individual Front Side Marker Lamp Is Inoperative Or Always On - Halogen Headlamps
- Pinpoint Test G : One Or More Roof Marker Lamps Only Are Inoperative
- Pinpoint Test H : One Or More Bed Side Marker And Bed Rear Marker Lamps Only Are Inoperative
- Pinpoint Test I : One Or Both Rear Parking Lamps And Both Exterior Mirror Parking Lamps (If Equipped) Are Inoperative - Vehicles Not Equipped With A Bed
- Pinpoint Test J : An Individual Or All Rear Parking And/Or License Plate Lamps Are Inoperative - Vehicles Equipped With Bed And Incandescent Rear Lamps
- Pinpoint Test K : An Individual Or All Rear Parking And/Or License Plate Lamps Are Inoperative - Vehicles Equipped With Bed And Led (Light Emitting Diode) Rear Lamps
- Pinpoint Test L : All Rear Parking, License Plate And Exterior Mirror Parking (If Equipped) Lamps Are Always On
- Pinpoint Test M : An Individual Exterior Mirror Parking Lamp Is Inoperative
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.