Ford Galaxy / Ford S-MAX. Manual — part 780

cases?
Yes

GO to A16

.

No

LOCATE and REPAIR the break in the affected
circuit using the Wiring Diagrams. CHECK the
operation of the system.

A15: CHECK COMMON CONTROL CIRCUIT OF HEADLAMP LEVELLING FOR OPEN
CIRCUIT

Measure the resistance between adaptive front
lighting module, connector C2LF23D, pin 4, circuit

VLF22B (VT/GN), wiring harness side and left-hand
headlamp, connector C1LF08, pin 3, circuit VLF22A
(VT/GN), wiring harness side.

1

Is a resistance of less than 2 Ohms registered?
Yes

GO to A16

.

No

LOCATE and RECTIFY break in circuit between
lighting control module and intermediate connector
C21A/B using the Wiring Diagrams. CHECK the
operation of the system.

A16: RULE OUT THE LEFT-HAND HEADLAMP AS A POSSIBLE CAUSE OF THE FAULT

Connect Left-hand headlamp to connector
C1LF08A.

1

Ignition switch in position II.

2

Vehicles without adaptive front lighting module:
Measure the voltage between adaptive front

lighting module, connector C2LF23D, pin 4, circuit
VLF22B (VT/GN), wiring harness side and ground.

3

Vehicles with adaptive front lighting module:
Measure the voltage between adaptive front

lighting module, connector C2LF23A, pin 16, circuit
VLF22E (VT/GN), wiring harness side and ground.

4

Does the meter display battery voltage?
Yes

RENEW left-hand headlamp. CHECK the operation
of the system.

No

GO to A17

.

A17: RULE OUT THE RIGHT-HAND HEADLAMP AS A POSSIBLE CAUSE OF THE FAULT

Ignition switch in position 0.

1

Connect Right-hand headlamp to connector
C1LF09.

2

Ignition switch in position II.

3

Vehicles without adaptive front lighting module:

4

Measure the voltage between adaptive front
lighting module, connector C2LF23D, pin 4, circuit
VLF22B (VT/GN), wiring harness side and ground.

Vehicles with adaptive front lighting module:
Measure the voltage between adaptive front

lighting module, connector C2LF23A, pin 16, circuit
VLF22E (VT/GN), wiring harness side and ground.

5

Does the meter display battery voltage?
Yes

RENEW right-hand headlamp. CHECK the operation
of the system.

No

- vehicles without adaptive front lighting module:
RENEW lighting control module. CHECK the
operation of the system.
- vehicles with adaptive front lighting module:

GO

to A18

.

A18: RULE OUT THE LIGHTING CONTROL MODULE AS A POSSIBLE SOURCE OF THE
FAULT.

Ignition switch in position 0.

1

Connect Lighting control module to connector
C2LF23D.

2

Ignition switch in position II.

3

SWITCH ON dipped beam.

4

OPERATE the headlamp levelling (UP/DOWN).

5

Measure the voltage between adaptive front
lighting module, connector C2LF23A, pin 9, circuit

A_VLF22A (VT/GN), wiring harness side and
ground.

6

Does the voltage measurement change in line with the
headlamp levelling position.
Yes

RENEW adaptive front lighting module. CHECK the
operation of the system.

No

RENEW lighting control module. CHECK the
operation of the system.

A19: CHECK VOLTAGE SUPPLY OF LEFT-HAND HEADLAMP LEVELLING MOTOR FOR
OPEN CIRCUIT

Ignition switch in position 0.

1

Disconnect Left-hand headlamp from connector
C1LF08.

2

Ignition switch in position II.

3

SWITCH ON dipped beam.

4

Measure the voltage between left-hand headlamp,
connector C1LF08, pin 1, circuit CBB43B (GY),

wiring harness side and ground.

5

Does the meter display battery voltage?
Yes

GO to A20

.

No

LOCATE and RECTIFY the break in the circuit
between soldered connection SP171 and headlamp
using the Wiring Diagrams. CHECK the operation of
the system.

A20: CHECK GROUND CONNECTION OF LEFT-HAND HEADLAMP LEVELLING MOTOR
FOR OPEN CIRCUIT

Ignition switch in position 0.

1

Measure the resistance between the left-hand
headlamp, connector C1LF08, pin 11, circuit

GD130AE (BK/YE), wiring harness side and ground.

2

Is a resistance of less than 2 Ohms registered?
Yes

GO to A21

.

No

LOCATE and RECTIFY the break in the circuit
between the headlamp and soldered connection
SP371 using the Wiring Diagrams. CHECK the
operation of the system.

A21: CHECK CONTROL CIRCUIT OF LEFT-HAND HEADLAMP LEVELLING MOTOR FOR
OPEN CIRCUIT

Disconnect Right-hand headlamp from connector
C1LF09.

1

Measure the resistance between left-hand
headlamp, connector C1LF08, pin 3, circuit VLF22A

(VT/GN), wiring harness side and right-hand
headlamp, connector C1LF09, pin 3, circuit VLF22C
(VT/GN), wiring harness side.

2

Is a resistance of less than 2 Ohms registered?
Yes

RENEW left-hand headlamp. CHECK the operation
of the system.

No

LOCATE and RECTIFY break in circuit between
headlamp and intermediate connector C21A/B
using the Wiring Diagrams. CHECK the operation of
the system.

A22: CHECK VOLTAGE SUPPLY OF RIGHT-HAND HEADLAMP LEVELLING MOTOR FOR
OPEN CIRCUIT

Ignition switch in position 0.

1

Disconnect Right-hand headlamp from connector
C1LF09.

2

Ignition switch in position II.

3

SWITCH ON dipped beam.

4

Measure the voltage between right-hand
headlamp, connector C1LF09, pin 1, circuit CBB43A

(GY), wiring harness side and ground.

5

Does the meter display battery voltage?
Yes

GO to A23

.

No

LOCATE and RECTIFY the break in the circuit
between soldered connection SP171 and headlamp
using the Wiring Diagrams. CHECK the operation of
the system.

A23: CHECK GROUND CONNECTION OF RIGHT-HAND HEADLAMP LEVELLING MOTOR
FOR OPEN CIRCUIT

Ignition switch in position 0.

1

Measure the resistance between the right-hand
headlamp, connector C1LF09, pin 11, circuit

GD132W (BK/VT), wiring harness side and ground.

2

Is a resistance of less than 2 Ohms registered?
Yes

GO to A24

.

No

LOCATE and RECTIFY the break in the circuit
between the headlamp and soldered connection
SP380 using the Wiring Diagrams. CHECK the
operation of the system.

A24: CHECK CONTROL CIRCUIT OF RIGHT-HAND HEADLAMP LEVELLING MOTOR FOR
OPEN CIRCUIT

Disconnect Left-hand headlamp from connector
C1LF08.

1

Measure the resistance between left-hand
headlamp, connector C1LF08, pin 3, circuit VLF22A

(VT/GN), wiring harness side and right-hand
headlamp, connector C1LF09, pin 3, circuit VLF22C
(VT/GN), wiring harness side.

2

Is a resistance of less than 2 Ohms registered?
Yes

RENEW headlamp. CHECK the operation of the
system.

No

LOCATE and RECTIFY break in circuit between
headlamp and intermediate connector C21A/B
using the Wiring Diagrams. CHECK the operation of
the system.

PINPOINT TEST B : THE HEADLAMP LEVELLING IS INOPERATIVE/DOES
NOT OPERATE CORRECTLY (VEHICLES WITH XENON HEADLAMPS)

WARNING: High voltages of up to 30 kV are present in the system. Ensure that the

headlamp assembly electrical connector is disconnected if the headlamp assembly is
removed.
NOTE: It is not possible to adjust the headlamps manually.
NOTE: For testing the basic function of the automatic headlamp levelling system, switch
on the dipped beams and change the load (rear axle) of the vehicle. Check if the
headlamp levelling system adjusts the headlamps correctly.
NOTE: The headlamp levelling positioning motor cannot be replaced by itself. If
necessary, it needs to be replaced together with the complete headlamp unit.

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

B1: DETERMINE THE CAUSE OF THE FAULT

Ignition switch in position II.

1

SWITCH ON dipped beams.

2

CHECK the headlamp levelling.

3