Ford Galaxy / Ford S-MAX. Manual — part 877

Disconnect left rear door module C7PL01.

1

Disconnect left rear door lock C7PL71.

2

Ignition switch in position II.

3

Measure the voltage between the left rear door
module connector C7PL01 pin 10, circuit CPL04A

(BK), wiring harness side and ground.

4

Is a voltage measured?
Yes

LOCATE and REPAIR the short to voltage in circuit
CPL04A (BK) between the left rear door module and
the left door lock with the aid of the Wiring
Diagrams. CHECK the operation of the system.

No

GO to H2

.

H2: CHECK FOR A BREAK IN THE CIRCUIT BETWEEN THE LEFT REAR DOOR MODULE
AND THE LEFT REAR DOOR LOCK

Ignition switch in position 0.

1

Measure the resistance between the left rear door
module connector C7PL01 pin 10, circuit CPL04A

(BK), wiring harness side and the left rear door lock
connector C7PL71 pin 7, circuit CPL04A (BK), wiring
harness side.

2

Is a resistance of less than 2 Ohm measured?
Yes

GO to H3

.

No

LOCATE and REPAIR the break in circuit CPL04A (BK)
between the left rear door module and the left rear
door lock with the aid of the Wiring Diagrams. CHECK
the operation of the system.

H3: CHECK FOR SHORT TO GROUND BETWEEN THE LEFT REAR DOOR MODULE AND
THE LEFT REAR DOOR LOCK

Ignition switch in position 0.

1

Measure the resistance between the left rear door
module connector C7PL01 pin 10, circuit CPL04A

(BK), wiring harness side and ground.

2

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

GO to H4

.

No

LOCATE and REPAIR the short to ground in circuit
CPL04A (BK) between the left rear door module and
the left rear door lock with the aid of the Wiring
Diagrams. CHECK the operation of the system.

H4: CHECK THE VOLTAGE AT THE LEFT REAR DOOR LOCK (DURING
LOCKING/UNLOCKING)

Connect left rear door module C7PL01.

1

Measure the voltage between the left rear door lock
connector C7PL71 pin 7, circuit CPL04A (BK), wiring

harness side and ground.

2

Lock and unlock the vehicle with the key in the door
lock cylinder.

3

Is battery voltage measured during unlocking?
Yes

GO to H5

.

No

CHECK and if necessary INSTALL a new left rear door
module. CHECK the operation of the system.

H5: CHECK THE VOLTAGE AT THE LEFT REAR DOOR LOCK (DURING DOUBLE
LOCKING/UNLOCKING)

Measure the voltage between the left rear door lock
connector C7PL71 pin 7, circuit CPL04A (BK), wiring

harness side and ground.

1

Double lock and unlock the vehicle with the key in
the door lock cylinder.

2

Is battery voltage measured during unlocking?
Yes

CHECK and if necessary INSTALL a new left rear door
lock. CHECK the operation of the system.

No

CHECK and if necessary INSTALL a new left rear door
lock. CHECK the operation of the system.

PINPOINT TEST I : CIRCUIT OF THE LEFT REAR CENTRAL LOCKING MOTOR
WITH DOUBLE LOCKING FAULTY.

WARNING: The window anti-trap function will not operate during the window motor

initialization procedure.
NOTE: If the power to a window regulator motor has been disconnected, it is necessary
to initialize that window regulator motor.

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

I1: CHECK FOR SHORT TO VOLTAGE BETWEEN THE LEFT REAR DOOR MODULE AND
THE LEFT REAR DOOR LOCK

Disconnect left rear door module C7PL01.

1

Disconnect left rear door lock C7PL71.

2

Ignition switch in position II.

3

Measure the voltage between the left rear door
module connector C7PL01 pin 9, circuit CPL08A (BK),

wiring harness side and ground.

4

Is a voltage measured?
Yes

LOCATE and REPAIR the short to voltage in circuit
CPL08A (BK) between the left rear door module and
the left door lock with the aid of the Wiring
Diagrams. CHECK the operation of the system.

No

GO to I2

.

I2: CHECK FOR A BREAK IN THE CIRCUIT BETWEEN THE LEFT REAR DOOR MODULE
AND THE LEFT REAR DOOR LOCK

Ignition switch in position 0.

1

Measure the resistance between the left rear door
module connector C7PL01 pin 9, circuit CPL08A (BK),

wiring harness side and the left rear door lock,
connector C7PL71, pin 6, circuit CPL08A (BK), wiring
harness side.

2

Is a resistance of less than 2 Ohm measured?
Yes

GO to I3

.

No

LOCATE and REPAIR the break in circuit CPL08A (BK)
between the left rear door module and the left rear
door lock with the aid of the Wiring Diagrams. CHECK
the operation of the system.

I3: CHECK FOR SHORT TO GROUND BETWEEN THE LEFT REAR DOOR MODULE AND
THE LEFT REAR DOOR LOCK (DURING LOCKING/UNLOCKING)

Ignition switch in position 0.

1

Measure the resistance between the left rear door
module connector C7PL01 pin 9, circuit CPL08A (BK),

wiring harness side and ground.

2

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

GO to I4

.

No

LOCATE and REPAIR the short to ground in circuit
CPL08A (BK) between the left rear door module and
the left rear door lock with the aid of the Wiring
Diagrams. CHECK the operation of the system.

I4: CHECK THE VOLTAGE AT THE LEFT REAR DOOR LOCK (DURING
LOCKING/UNLOCKING)

Connect left rear door module C7PL01.

1

Measure the voltage between the left rear door lock
connector C7PL71 pin 6, circuit CPL08A (BK), wiring

harness side and ground.

2

Lock and unlock the vehicle with the key in the door
lock cylinder.

3

Is battery voltage measured during unlocking?
Yes

GO to I5

.

No

CHECK and if necessary INSTALL a new left rear door
module. CHECK the operation of the system.

I5: CHECK THE VOLTAGE AT THE LEFT REAR DOOR LOCK (DURING DOUBLE
LOCKING/UNLOCKING)

Measure the voltage between the left rear door lock
connector C7PL71 pin 6, circuit CPL08A (BK), wiring

harness side and ground.

1

Double lock and unlock the vehicle with the key in
the door lock cylinder.

2

Is battery voltage measured during unlocking?
Yes

CHECK and if necessary INSTALL a new left rear door