Pinpoint Test U : The DRL (Daytime Running Lamps) Are Inoperative - Halogen Headlamps Equipped With Led (Light Emitting Diode) Signature/Front Parking Lamps And Led (Light Emitting Diode) Headlamps

WARNING: This page is about a different car, the 2019 Ford SSV Plug-in Hybrid, 2019 Ford Police Responder Hybrid, and 2019 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before beginning this test, refer to Description and Operation in this article for proper DRL operation.

U1 CHECK THE OPERATION OF THE HEADLAMPS
- Ignition ON.
- Place the headlamp switch in the HEADLAMPS ON position.
Do the headlamp low beams operate?

Yes GO to U2

No For halogen headlamps, GO to Pinpoint Test A For LED headlamps, GO to Pinpoint Test B

U2 CHECK THE DRL (DAYTIME RUNNING LAMPS) CIRCUIT FOR VOLTAGE

Place the headlamp switch in the OFF position.

Ignition OFF.

Disconnect: LH Headlamp C1509A or RH Headlamp C1510A.

Ignition ON.

Make sure there is enough ambient lighting that the autolamps system will not automatically illuminate the headlamps.

Measure:

LH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1509A-3	Courtesy of FORD MOTOR COMPANY	Ground

RH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1510A-3	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to U6

GO to U3

U3 REPEAT THE ON-DEMAND SELF-TEST AND CHECK THE DRL (DAYTIME RUNNING LAMPS) CIRCUIT FOR VOLTAGE

Using a diagnostic scan tool, perform the BCM self-test.

Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present).

Ignition OFF.

Ignition ON.

Measure:

LH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1509A-3	Courtesy of FORD MOTOR COMPANY	Ground

RH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1510A-3	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to U6

GO to U4

U4 CHECK THE DRL (DAYTIME RUNNING LAMPS) CIRCUIT FOR A SHORT TO GROUND

Place the headlamp switch in the OFF position.

Ignition OFF.

Disconnect: BCM C2280C.

Measure:

LH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1509A-3	Courtesy of FORD MOTOR COMPANY	Ground

RH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1510A-3	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to U5

REPAIR the circuit. After the repair: If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation. If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present). If DTC U3000:49 is present, Refer to BCM Guided Routine .

U5 CHECK THE DRL (DAYTIME RUNNING LAMPS) CIRCUIT FOR AN OPEN

Measure:

LH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1509A-3	Courtesy of FORD MOTOR COMPANY	C2280C-40

RH Headlamp

Positive Lead	Measurement / Action	Negative Lead
C1510A-3	Courtesy of FORD MOTOR COMPANY	C2280C-36

Is the resistance less than 3 ohms?

Yes

GO to U7

No	REPAIR the circuit.

U6 CHECK THE ADAPTIVE FRONT LIGHTING MODULE

Remove the suspect adaptive front lighting module.

Substitute the known good adaptive front lighting module from the opposite headlamp.

Clear the Diagnostic Trouble Codes (DTCs), Repeat the self-test (required to enable the lamp output driver) and cycle the ignition OFF and ON. Test the system for normal operation.

Does the suspect headlamp operate?

Yes	REMOVE the known good adaptive front lighting module. INSTALL a new adaptive front lighting module.

No	REMOVE the known good adaptive front lighting module. INSTALL a new headlamp assembly. INSTALL a new headlamp assembly. REFER to: Headlamp Assembly .

U7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Disconnect and inspect all BCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Refer to BCM Guided Routine .

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.