Ford Galaxy / Ford S-MAX. Manual — part 816

Yes

GO to S7

.

No

LOCATE and RECTIFY the break in the circuit
between the rain sensor/light sensor and ground
connection G6D139 with the aid of the Wiring
Diagrams. CHECK the operation of the system.

S7: CHECK THE CIRCUIT BETWEEN THE RAIN SENSOR/LIGHT SENSOR AND THE GEM
FOR OPEN CIRCUIT

CAUTION: The following measurement must only be performed using the Ford

approved diagnostic tool digital multimeter. Failure to observe this instruction can lead to
damage.

Disconnect Connector C1BP02-H from the GEM.

1

Measure the resistance between the rain sensor/light
sensor, connector C9RW06, pin 1, circuit VRW26A

(BN/YE), wiring harness side and the GEM, connector
C1BP02-H, pin 8, circuit VRW26A (BN/YE), wiring
harness side.

2

Is a resistance of less than 2 Ohms registered?
Yes

GO to S8

.

No

LOCATE and RECTIFY the break in the circuit
between the rain sensor/light sensor and the GEM
with the aid of the Wiring Diagrams. CHECK the
operation of the system.

S8: CHECK THE LIN BUS FOR A SHORT TO VOLTAGE SUPPLY

Ignition switch in position II.

1

Measure the voltage between the rain sensor/light
sensor, connector C9RW06, pin 1, circuit VRW26A

(BN/YE), wiring harness side and ground.

2

Is a voltage measured?
Yes

LOCATE and RECTIFY the short to voltage in the
circuit between the rain sensor/light sensor and the
GEM with the aid of the Wiring Diagrams. CHECK the
operation of the system.

No

GO to S9

.

S9: CHECK THE LIN BUS FOR A SHORT TO GROUND

Ignition switch in position 0.

1

Measure the resistance between the rain sensor/light
sensor, connector C9RW06, pin 1, circuit VRW26A

(BN/YE), wiring harness side and ground.

2

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

CHECK and if necessary RENEW the rain sensor/light
sensor. CHECK the operation of the system.

No

LOCATE and RECTIFY the short to ground in the
circuit between the rain sensor/light sensor and the
GEM with the aid of the Wiring Diagrams. CHECK the
operation of the system.

PINPOINT TEST T : WIPER MOTOR MODULE NOT COMMUNICATING WITH
THE FORD APPROVED DIAGNOSTIC TOOL

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

T1: CHECK COMMUNICATION WITH THE GENERIC ELECTRONIC MODULE (GEM)

Ignition switch in position 0.

1

Connect the diagnostic tool.

2

Select the generic electronic module (GEM) with the Ford approved
diagnostic tool.

3

Is it possible to establish communications with the GEM?
Yes

GO to T2

.

No

GO to Pinpoint Test

AF.

T2: CHECK FUSE F22

Ignition switch in position 0.

1

CHECK Fuse F22 (EJB).

2

Is the fuse OK?
Yes

GO to T3

.

No

RENEW fuse F22 (30 A). CHECK the operation of the system. If the fuse
blows again, LOCATE and REPAIR the short using the Wiring Diagrams.

T3: CHECK THE VOLTAGE AT FUSE F22

Connect Fuse F22 (EJB).

1

Measure the voltage between fuse F22 (30 A) and ground.

2

Does the meter display battery voltage?
Yes

GO to T4

.

No

REPAIR the voltage supply to fuse F22 with the aid of the Wiring Diagrams.
CHECK the operation of the system.

T4: CHECK THE VOLTAGE AT THE WIPER MOTOR MODULE

Disconnect Connector C1RW01-B from the wiper motor module.

1

Measure the voltage between the wiper motor module, connector C1RW01-
B, pin 1, circuit SBB22A (BN/RD), wiring harness side and ground.

2

Does the meter display battery voltage?

Yes

GO to T6

.

No

GO to T5

.

T5: CHECK FOR OPEN CIRCUIT BETWEEN THE EJB AND THE WIPER MOTOR MODULE

Disconnect Connector C1BB01-A from the EJB.

1

Measure the resistance between the EJB, connector C1BB01-A, pin 74,
circuit SBB22A (BN/RD), wiring harness side and the wiper motor module,

connector C1RW01-B, pin 1, circuit SBB22A (BN/RD), wiring harness side.

2

Is a resistance of less than 2 Ohms registered?
Yes

CHECK and if necessary RENEW the EJB. CHECK the operation of the
system.

No

LOCATE and RECTIFY the break in circuit SBB22A (BN/RD) between the
wiper motor module and the EJB with the aid of the Wiring Diagrams.
CHECK the operation of the system.

T6: CHECK THE GROUND CONNECTION OF THE WIPER MOTOR MODULE

Measure the resistance between the wiper motor module, connector
C1RW01-B, pin 2, circuit GD131H (BK/GY), wiring harness side and

ground.

1

Is a resistance of less than 2 Ohms registered?
Yes

GO to T7

.

No

LOCATE and RECTIFY the break in the circuit between the wiper motor
module and ground connection G1D130D with the aid of the Wiring
Diagrams. CHECK the operation of the system.

T7: CHECK FOR OPEN CIRCUIT BETWEEN THE WIPER MOTOR MODULE AND THE GEM

CAUTION: The following measurement must only be performed using the Ford

approved diagnostic tool digital multimeter. Failure to observe this instruction can lead to
damage.

Disconnect Connector C1BP02-A from the GEM.

1

Measure the resistance between the wiper motor module, connector
C1RW01-B, pin 4, circuit VRW27A (YE/BU), wiring harness side and the

GEM, connector C1BP02-A, pin 36, circuit VRW27A (YE/BU), wiring harness
side.

2

Is a resistance of less than 2 Ohms registered?
Yes

GO to T8

.

No

LOCATE and RECTIFY the break in circuit VRW27A (YE/BU) between the
wiper motor module and the GEM with the aid of the Wiring Diagrams.
CHECK the operation of the system.

T8: CHECK THE LIN BUS FOR A SHORT TO VOLTAGE SUPPLY

Ignition switch in position II.

1

Measure the voltage between the wiper motor module, connector C1RW01-
B, pin 4, circuit VRW27A (YE/BU), wiring harness side and ground.

2

Is a voltage measured?
Yes

LOCATE and RECTIFY the short to voltage in the circuit between the wiper
motor module and the GEM with the aid of the Wiring Diagrams. CHECK the
operation of the system.

No

GO to T9

.

T9: CHECK THE LIN BUS FOR A SHORT TO GROUND

Ignition switch in position 0.

1

Measure the resistance between the wiper motor module, connector
C1RW01-B, pin 4, circuit VRW27A (YE/BU), wiring harness side and

ground.

2

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

CHECK and if necessary RENEW the wiper motor module. CHECK the
operation of the system.

No

LOCATE and RECTIFY the short to ground in the circuit between the wiper
motor module and the GEM with the aid of the Wiring Diagrams. CHECK the
operation of the system.

PINPOINT TEST U : LIGHT SWITCH UNIT NOT COMMUNICATING WITH THE
FORD APPROVED DIAGNOSTIC TOOL

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

U1: CHECK COMMUNICATION WITH THE GENERIC ELECTRONIC MODULE (GEM)

Ignition switch in position 0.

1

Connect the diagnostic tool.

2

Select the generic electronic module (GEM) with the Ford approved
diagnostic tool.

3

Is it possible to establish communications with the GEM?
Yes

GO to U2

.

No

GO to Pinpoint Test

AF.

U2: CHECK FUSE F33

Ignition switch in position 0.

1

CHECK Fuse F33 (EJB).

2

Is the fuse OK?
Yes

GO to U3

.

No

RENEW fuse F33 (5 A). CHECK the operation of the system. If the fuse
blows again, LOCATE and REPAIR the short using the Wiring Diagrams.

U3: CHECK THE VOLTAGE AT FUSE F33

Connect Fuse F33 (EJB).

1

Measure the voltage between fuse F33 (5 A) and ground.

2

Does the meter display battery voltage?
Yes

GO to U4

.

No

REPAIR the voltage supply to fuse F33 with the aid of the Wiring Diagrams.
CHECK the operation of the system.

U4: CHECK THE VOLTAGE AT THE LIGHT SWITCH UNIT

Disconnect Connector C2LF23-D from the light switch unit.

1

Measure the voltage between the light switch unit, connector C2LF23-D,
pin 1, circuit SBB33B (RD), wiring harness side and ground.

2

Does the meter display battery voltage?
Yes

GO to U6

.

No

GO to U5

.

U5: CHECK FOR OPEN CIRCUIT BETWEEN THE EJB AND THE LIGHT SWITCH UNIT

Disconnect Connector C1BB01-A from the EJB.

1

Measure the resistance between the EJB, connector C1BB01-A, pin 92,
circuit SBB33D (RD), wiring harness side and the light switch unit,

2