This is one your going to need to take to the dealer , The head Lamps are controlled by the Smart Junction Box - electronic control module !
Inspection and Verification
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Mechanical
Electrical
- Battery junction box (BJB) fuse(s):
- 2 (25A)
- 3 (25A)
- 19 (40A)
- 21 (40A)
- Smart junction box (SJB) fuse(s):
- SJB
- Bulb(s)
- Circuitry
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
NOTE: Make sure the headlamp switch is in the OFF position.
NOTE: Make sure the multifunction switch is in the low beam position.
- If the cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- Check that the program card is correctly installed.
- Check the connections to the vehicle.
- Check the ignition switch position.
- If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
- Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
- CAN or ISO circuit fault; all electronic control units no response/not equipped, refer to Section 418-00 .
- No response/not equipped for SJB, refer to Section 419-10 .
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the SJB.
- If the DTCs retrieved are related to the concern, go to the Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index.
- If no DTCs related to the concern are retrieved, GO to Symptom Chart .
NOTE: For a complete master list of DTCs, refer to Section 419-10 .
Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index
DTC
Description
Source
Action
B1342
ECU Is Defective
SJB
CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved again, INSTALL a new SJB. REFER to Section 419-10 .
B1472
Headlamp (Low Beam) ON Switch/Circuit Short to Ground
SJB
Go To Pinpoint Test F .
B1510
Flash-to-Pass Switch/Circuit Short to Ground
SJB
Go To Pinpoint Test F .
B1570
Lamp Headlamp High Beam Circuit Short to Ground
SJB
Go To Pinpoint Test E .
B1797
Lamp Headlamp Low Beam Circuit Short to Ground
SJB
Go To Pinpoint Test D .
B2501
Headlamp, Left Low Beam Circuit Failure
SJB
If the low beam is inoperative, Go To Pinpoint Test D .
If the low beam is always on, Go To Pinpoint Test F .
B2503
Headlamp, Right Low Beam Circuit Failure
SJB
If the low beam is inoperative, Go To Pinpoint Test D .
If the low beam is always on, Go To Pinpoint Test F .
B2505
Headlamp, Left High Beam Circuit Failure
SJB
If the high beam is inoperative, Go To Pinpoint Test E .
If the high beam is always on, Go To Pinpoint Test F .
B2507
Headlamp, Right High Beam Circuit Failure
SJB
If the high beam is inoperative, Go To Pinpoint Test E .
If the high beam is always on, Go To Pinpoint Test F .
PINPOINT TEST C: THE HIGH BEAMS ARE INOPERATIVE
Test Step
Result / Action to Take
C1 CHECK THE MULTIFUNCTION SWITCH
- Key in OFF position.
- Disconnect: Multifunction Switch C2080.
- Carry out the multifunction switch component test.
Refer to Wiring Diagrams Cell 149 ( Escape Hybrid , Escape/Mariner ) for schematic and connector information.
- Is the multifunction switch OK?
Yes
GO to C2 .
No
INSTALL a new multifunction switch. REFER to Section 211-05 . TEST the system for normal operation.
C2 CHECK CIRCUIT 12 (LG/BK) FOR AN OPEN
- Disconnect: Smart Junction Box (SJB) C2280e.
- Measure the resistance between the multifunction switch C2080-2, circuit 12 (LG/BK), harness side and the SJB C2280e-31, circuit 12 (LG/BK), harness side.
>
- Is the resistance less than 5 ohms?
Yes
GO to C3 .
No
REPAIR the circuit. TEST the system for normal operation.
C2 CHECK CIRCUIT 12 (LG/BK) FOR AN OPEN
- Disconnect: Smart Junction Box (SJB) C2280e.
- Measure the resistance between the multifunction switch C2080-2, circuit 12 (LG/BK), harness side and the SJB C2280e-31, circuit 12 (LG/BK), harness side.
>
- Is the resistance less than 5 ohms?
Yes
GO to C3 .
No
REPAIR the circuit. TEST the system for normal operation.
C3 CHECK CIRCUIT 54 (LG/YE) FOR AN OPEN
- Disconnect: SJB C2280b.
- Measure the voltage between the SJB C2280b-2, circuit 54 (LG/YE), harness side and ground.
>
- Is the voltage greater than 10 volts?
Yes
GO to C4 .
No
REPAIR the circuit. TEST the system for normal operation.
C4 CHECK FOR CORRECT SJB OPERATION
- Disconnect all the SJB connectors.
- Check for:
- Connect all the SJB connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes
INSTALL a new SJB. REFER to Section 419-10 . TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR any DTCs. REPEAT the self-test.