Ford Galaxy / Ford S-MAX. Manual — part 782

OPEN CIRCUIT

Connect Adaptive front lighting module to
connector C2LF23A.

1

Connect Adaptive front lighting module to
connector C2LF23B.

2

Ignition switch in position II.

3

SWITCH ON dipped beam.

4

Measure the voltage between front headlamp
levelling sensor, connector C5CD07, pin 5, circuit

LCD23B (GN/OG), wiring harness side and ground.

5

Measure the voltage between rear headlamp
levelling sensor, connector C7CD12, pin 5, circuit

LCD23D (GN/OG), wiring harness side and ground.

6

Is a voltage of 5 Volts measured in both cases?
Yes

GO to B17

.

No

- If no voltage is measured during both of the
measurements:

GO to B16

.

- Is a voltage of 5 Volts measured during just one
measurement? LOCATE and RECTIFY break in the
affected circuit between soldered connection SP406
and headlamp levelling sensor using the Wiring
Diagrams. CHECK the operation of the system.

B16: RULE OUT THE ADAPTIVE FRONT LIGHTING MODULE AS A POSSIBLE CAUSE OF
THE FAULT

Ignition switch in position 0.

1

Disconnect Adaptive front lighting module from
connector C2LF23A.

2

Measure the resistance between adaptive front
lighting module, connector C2LF23A, pin 11, circuit

LCD23G (GN/OG), wiring harness side and front
headlamp levelling sensor, connector C5CD07, pin
5, circuit LCD23B (GN/OG), wiring harness side.

3

Is a resistance of less than 2 Ohms registered?
Yes

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

No

LOCATE and RECTIFY break in circuit between

adaptive front lighting module and soldered
connection SP406 using the Wiring Diagrams.
CHECK the operation of the system.

B17: RULE OUT THE ADAPTIVE FRONT LIGHTING MODULE AS A POSSIBLE CAUSE OF
THE FAULT

Ignition switch in position II.

1

Measure the resistance between front headlamp
levelling sensor, connector C5CD07, pin 1, circuit

RCD02G (GN/BN), wiring harness side and ground.

2

Measure the resistance between rear headlamp
levelling sensor, connector C7CD12, pin 1, circuit

RCD23D (WH/BN), wiring harness side and ground.

3

Is a resistance of less than 2 Ohm measured in both
cases?
Yes

GO to B19

.

No

- If a resistance of less than 2 Ohm is not
measured in either measurement: RENEW the
adaptive front lighting module. CHECK the
operation of the system.
- If a resistance of less than 2 Ohm is measured in
one measurement:

GO to B18

.

B18: RULE OUT THE ADAPTIVE FRONT LIGHTING MODULE AS A POSSIBLE CAUSE OF
THE FAULT

Ignition switch in position 0.

1

Disconnect Adaptive front lighting module from
connector C2LF23A.

2

Open circuit in ground connection to front
headlamp levelling sensor: Measure the resistance

between adaptive front lighting module, connector
C2LF23A, pin 12, circuit RCD02L (GN/BN), wiring
harness side and front headlamp levelling sensor,
connector C5CD07, pin 1, circuit RCD02G (GN/BN),
wiring harness side.

3

Open circuit in ground connection to rear headlamp
levelling sensor: Measure the resistance between

adaptive front lighting module, connector C2LF23A,
pin 3, circuit RCD23K (WH/BN), wiring harness side
and rear headlamp levelling sensor, connector
C7CD12, pin 1, circuit RCD23D (WH/BN), wiring
harness side.

4

Is a resistance of less than 2 Ohms registered?
Yes

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

No

LOCATE and RECTIFY break in circuit between
adaptive front lighting module and headlamp
levelling sensor using the Wiring Diagrams. CHECK
the operation of the system.

B19: CHECK SIGNAL CIRCUIT BETWEEN ADAPTIVE FRONT LIGHTING MODULE AND
FRONT HEADLAMP LEVELLING SENSOR FOR SHORT CIRCUIT TO BATTERY VOLTAGE

Ignition switch in position II.

1

Measure the voltage between front headlamp
levelling sensor, connector C5CD07, pin 4, circuit

VCD10B (BN), wiring harness side and ground.

2

Does the meter display battery voltage?
Yes

LOCATE and RECTIFY the short to battery voltage
in circuit(s) between adaptive front lighting module
and headlamp levelling sensor using the Wiring
Diagrams. CHECK the operation of the system.

No

GO to B20

.

B20: CHECK SIGNAL CIRCUIT BETWEEN ADAPTIVE FRONT LIGHTING MODULE AND
FRONT HEADLAMP LEVELLING SENSOR FOR SHORT CIRCUIT TO GROUND

Ignition switch in position 0.

1

Measure the resistance between front headlamp
levelling sensor, connector C5CD07, pin 4, circuit

VCD10B (BN), wiring harness side and ground.

2

Is a resistance of more than 10,000 Ohm measured?
Yes

GO to B21

.

No

LOCATE and RECTIFY the short to ground in circuit
(s) between adaptive front lighting module and

headlamp levelling sensor using the Wiring
Diagrams. CHECK the operation of the system.

B21: CHECK SIGNAL CIRCUIT BETWEEN ADAPTIVE FRONT LIGHTING MODULE AND
FRONT HEADLAMP LEVELLING SENSOR FOR OPEN CIRCUIT

Measure the resistance between the front
headlamp levelling sensor, connector C5CD07, pin

4, circuit VCD10B (BN), wiring harness side and
adaptive front lighting module, connector C2LF23A,
pin 15, circuit VCD10D (BN), wiring harness side.

1

Is a resistance of less than 2 Ohms registered?
Yes

GO to B22

.

No

LOCATE and RECTIFY break in circuit(s) between
adaptive front lighting module and headlamp
levelling sensor using the Wiring Diagrams. CHECK
the operation of the system.

B22: CHECK SIGNAL CIRCUIT BETWEEN ADAPTIVE FRONT LIGHTING MODULE AND
REAR HEADLAMP LEVELLING SENSOR FOR SHORT CIRCUIT TO BATTERY VOLTAGE

Ignition switch in position II.

1

Measure the voltage between rear headlamp
levelling sensor, connector C7CD12, pin 4, circuit

VCD12B (VT/WH), wiring harness side and ground.

2

Does the meter display battery voltage?
Yes

LOCATE and RECTIFY the short to battery voltage
in circuit(s) between adaptive front lighting module
and headlamp levelling sensor using the Wiring
Diagrams. CHECK the operation of the system.

No

GO to B23

.

B23: CHECK SIGNAL CIRCUIT BETWEEN ADAPTIVE FRONT LIGHTING MODULE AND
REAR HEADLAMP LEVELLING SENSOR FOR SHORT CIRCUIT TO GROUND

Measure the resistance between rear headlamp
levelling sensor, connector C7CD12, pin 4, circuit

VCD12B (VT/WH), wiring harness side and ground.

1

Is a resistance of more than 10,000 Ohm measured?
Yes

GO to B24

.

No