2016 Titanium - Low beam not working

[Sunil]

FORD EDGE TITANIUM 2016 --- Low Beam Headlights NOT WORKING.....Can anyone HELP, which fuse to be replaced for low beam headlights in the fuse panel ? I checked the video but couldn't find the fuse for low beam & even in the owner's manual did not....CAN ANYONE HELP PLEASE ???

 

High Beam headlights are WORKING

[Haz]

Welcome to the Forum, Sunil !

 

From the 2016 Edge Workshop Manual...

 

Low Beams

The BCM monitors the headlamp switch position by sending voltage signals on multiple circuits to the headlamp switch. There is one circuit for each headlamp switch position. At any given time, one of the signal circuits is switched to ground to indicate the headlamp switch position.

 

The BCM turns the parking lamps and headlamps on when the ignition is in RUN and the BCM detects a fault from the headlamp switch or wiring. This is normal behavior of the BCM when a fault has been detected with the inputs from the headlamp switch.

 

When the BCM receives a message requesting the headlamps on, it supplies voltage to the headlamp bulbs (halogen headlamps) or the ballasts (High Intensity Discharge (HID) headlamps) within each headlamp assembly.

 

Vehicles with High Intensity Discharge (HID) headlamps utilize a ballast, mounted to each headlamp assembly, to provide the necessary voltage to illuminate the High Intensity Discharge (HID) bulbs.

 

The BCM also provides Field Effect Transistor (FET) protection of the exterior lamps switched voltage and low beam output circuits. When an excessive current draw is detected, the BCM disables the affected circuit driver.

 

Field Effect Transistor (FET) Protection

The BCM utilizes an Field Effect Transistor (FET) protective circuit strategy for many of its outputs, for example, lamp output circuits. Output loads (current level) are monitored for excessive current (typically short circuits) and are shut down (turns off the voltage or ground provided by the module) when a fault event is detected.

 

A Field Effect Transistor (FET) is a type of transistor that the control module software uses to control and monitor current flow on module outputs. The Field Effect Transistor (FET) protection strategy prevents module damage in the event of excessive current flow.

 

Output loads (current level) are monitored for excessive current draw (typically short circuits). When a fault event is detected the Field Effect Transistor (FET) turns off and a short circuit DTC sets. The module resets the Field Effect Transistor (FET) protection and allows the circuit to function when the fault is corrected or the ignition state is cycled off and then back on.

 

When the excessive circuit load occurs often enough, the module shuts down the output until a repair procedure is carried out. Each Field Effect Transistor (FET) protected circuit has 3 predefined levels of short circuit tolerance based on a module lifetime level of fault events based upon the durability of the Field Effect Transistor (FET). If the total tolerance level is determined to be 600 fault events, the 3 predefined levels would be 200, 400 and 600 fault events.

 

When each level is reached, the DTC associated with the short circuit sets along with DTC U1000:00. These Diagnostic Trouble Codes (DTCs) can be cleared using the module on-demand self-test, then the Clear DTC operation on the scan tool (if the on-demand test shows the fault corrected). The module never resets the fault event counter to zero and continues to advance the fault event counter as short circuit fault events occur.

 

If the number of short circuit fault events reach the third level, then Diagnostic Trouble Codes (DTCs) U1000:00 and U3000:49 set along with the associated short circuit DTC . DTC U3000:49 cannot be cleared and the module must be replaced after the repair.

 

One Or Both Low Beams is Inoperative

 

  DTC Fault Trigger Conditions

 

DTC	Description	Fault Trigger Conditions
B1D00:11	Left Low Beam: Circuit Short To Ground	A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the LH low beam output circuit.
B1D00:15	Left Low Beam: Circuit Short To Battery Or Open	A continuous memory and on-demand DTC that sets when the BCM detects an open from the LH low beam output circuit.
B1D01:11	Right Low Beam: Circuit Short To Ground	A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the RH low beam output circuit.
B1D01:15	Right Low Beam: Circuit Short To Battery Or Open	A continuous memory and on-demand DTC that sets when the BCM detects an open from the RH low beam output circuit.
U1000:00	Solid State Driver Protection Active -Driver Disabled: No Sub Type Information	This DTC sets when the BCM has temporarily shut down the output driver. The module has temporarily disabled an output because an excessive current draw exists (such as a short to ground). The BCM cannot enable the output until the cause of the short is corrected, the Diagnostic Trouble Codes (DTCs) have been cleared and a successful self-test is run. For additional information on BCM Field Effect Transistor (FET) protection, REFER to: Module Controlled Functions - System Operation and Component Description (419-10 Multifunction Electronic Modules, Description and Operation).
U3000:49	Control Module: Internal Electronic Failure	This DTC sets when the BCM has permanently shut down the output driver. The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the BCM can withstand. CORRECT the cause of the excessive current draw before installing a new BCM . For additional information on BCM Field Effect Transistor (FET) protection, REFER to: Module Controlled Functions - System Operation and Component Description (419-10 Multifunction Electronic Modules, Description and Operation).

Possible Sources

• Fuse
• Wiring, terminals or connectors
• Bulb
• Ballast (High Intensity Discharge (HID) headlamps)
• Headlamp assembly
• BCM

Visual Inspection and Diagnostic Pre-checks

• Inspect the headlamp assembly for damage.
• Inspect BJB fuse 44 (20A).

 

Document download links>

Headlamps - Wiring Diagram - 2016 Edge.pdf

Battery Junction Box (BJB) - Location Illustration - 2016 Edge.pdf

Battery Junction Box (BJB) - Top View - 2016 Edge.pdf

Battery Junction Box (BJB) - Top View Legend - 2016 Edge.pdf

Battery Junction Box (BJB) - Bottom View - 2016 Edge.pdf

Battery Junction Box (BJB) - Bottom View Legend - 2016 Edge.pdf

 

Good luck!

 

[Sunil]

That's a detailed information, on the problem. It's very awesome.

 

My Edge had been replaced with a new battery, about 5 months back and unfortunately it was impounded by police for traffic violation. Every thing was working excellent until the impound.

I got the car out after 120 days, and replaced with a new battery again, and realized, the low beam lights aren't working any longer.

 

should I get BCM checked or is it gonna be a fuse replacement? coz my High beam lights are functional.

[Haz]

Since only Low Beams, then it may be worth checking if a nearby national-brand auto parts store is willing to scan your Edge for headlamp-related DTCs, which may show wiring/connector issues versus FET-related BCM replacement need.

 

Good luck!