Ford Galaxy / Ford S-MAX. Manual — part 767

No

INSTALL A NEW Smart Junction Box. CHECK system
operates correctly If the concern persists:
REFER to:

Communications Network

(418-00

Module Communications Network, Diagnosis and
Testing).

C5: CHECK THE CIRCUIT BETWEEN THE SMART JUNCTION BOX AND THE LEFT AND
RIGHT-HAND STOPLAMPS FOR SHORT TO BATTERY VOLTAGE

Ignition switch in position 0.

1

Disconnect Smart Junction Box from connector
C1BP02B.

2

Ignition switch in position II.

3

Check the stoplamps.

4

Are only the left and right stoplamps permanently lit?
Yes

- Vehicles without trailer socket: Use the Wiring
Diagrams to LOCATE and RECTIFY the short to
battery voltage in the circuits connected to soldered
connection SP451. CHECK system operates
correctly
- Vehicles with a trailer socket:

GO to C6

.

No

INSTALL A NEW Smart Junction Box. CHECK system
operates correctly If the concern persists:
REFER to:

Communications Network

(418-00

Module Communications Network, Diagnosis and
Testing).

C6: RULE OUT THE TRAILER CONTROL MODULE AS THE CAUSE OF THE FAULT

Ignition switch in position 0.

1

Disconnect fuse FA11 (40 A) (RJB).

2

Ignition switch in position II.

3

Check the stoplamps.

4

Are only the left and right stoplamps permanently lit?
Yes

Use the Wiring Diagrams to LOCATE and RECTIFY
the short to battery voltage in the circuits
connected to soldered connection SP451. CHECK
system operates correctly

No

INSTALL A NEW trailer control module. CHECK
system operates correctly

Exterior Lighting - Turn Signal, Cornering
and Hazard Lamps

S-MAX/Galaxy 2006.5 (02/2006-)

Print

Diagnosis and Testing

Refer to Wiring Diagrams Section 417-01, for schematic and connector
information.

Special Tool(s)

Inspection and Testing

NOTE: The generic electronic module (GEM) is part of the central junction box (CJB).
NOTE: A new GEM needs to be configured after installation. For this purpose, the vehicle-
specific data is read out of the module to be changed using WDS and is transferred to the
new module. REFER to:

Module Configuration

(418-01 Module Configuration, General Procedures),

Generic Electronic Module (GEM)

(419-10 Multifunction Electronic Modules, Diagnosis and

Testing).

NOTE: Before reading out the vehicle-specific data make sure that all electrical
connections in the vehicle are reconnected so that the module and WDS can communicate
correctly.

1. 1. Verify the customer concern.

2. 2. Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart

3. 3. Resolve any obvious causes for a concern found during the visual inspection before

carrying out any further tests.

4. 4. If the cause of the concern cannot be found by visual inspection, continue with the

symptom chart.

Symptom chart

Symptom chart

Terminal Probe Kit

29-011A

Electrical

Fuse(s)
Bulb(s)
Connector
Switch
Wiring loom
CAN data bus
LIN data bus

Symptom

Possible Sources

Action

All turn signal lamps inoperative

Circuit(s)
Steering wheel/steering

column module

Central junction box (CJB):

*
*

*

GO to Pinpoint

Test

A.

*

Hazard warning lights inoperative, turn

Fuse(s)

*

GO to Pinpoint

*

Pinpoint test

NOTE: Use a digital multimeter for all electrical measurements.

signal function OK

Circuit(s)
Hazard warning lights switch
Central junction box (CJB):

*
*
*

Test

B.

Single or multiple turn signal lamps
inoperative

Circuit(s)
Steering wheel/steering

column module

*
*

GO to Pinpoint

Test

C.

*

One or more turn signal lamps flashing
continuously

Hazard warning lights switch
Steering wheel/steering

column module

Central junction box (CJB):

*
*

*

GO to Pinpoint

Test

D.

*

One or more turn signal lamps
permanently lit

Circuit(s)
Central junction box (CJB):

*
*

GO to Pinpoint

Test

E.

*

PINPOINT TEST A : ALL TURN SIGNAL LAMPS INOPERATIVE

TEST CONDITIONS

DETAILS/RESULTS/ACTIONS

A1: CHECK FUSE F7 (7.5 A) (SJB).

Ignition switch in position 0.

1

Disconnect Fuse F7 (7.5 A) (SJB).

2

CHECK Fuse F7 (7.5 A) (SJB).

3

Is the fuse OK.?
Yes

GO to A2

.

No

RENEW fuse F7 (7.5 A) (SJB) and CHECK the
operation of the system. If the fuse blows again,
LOCATE and RECTIFY the short to ground using the
Wiring Diagrams. CHECK system operates correctly

A2: CHECK THE VOLTAGE SUPPLY TO FUSE F7 (7.5 A) (SJB) FOR OPEN CIRCUIT

Connect Fuse F7 (7.5 A) (SJB).

1

Ignition switch in position II.

2

Measure the voltage between fuse F7 (7.5 A) (SJB)
and ground.

3

Does the meter display battery voltage?
Yes

GO to A3

.

No

LOCATE and RECTIFY the break in the voltage
supply of fuse F7 (7.5 A) (SJB) with the aid of the
Wiring Diagrams. CHECK system operates correctly

A3: CHECK FUSE F17 (60 A) (EJB)

Ignition switch in position 0.

1

Disconnect fuse F17 (60 A) (EJB).

2

CHECK fuse F17 (60 A) (EJB).

3

Is the fuse OK.?
Yes

GO to A4

.

No

RENEW fuse F17 (60 A) (EJB) and CHECK the
operation of the system. If the fuse blows again,
LOCATE and RECTIFY the short to ground using the
Wiring Diagrams. CHECK system operates correctly

A4: CHECK THE VOLTAGE SUPPLY TO FUSE F17 (60 A) (EJB) FOR OPEN CIRCUIT

Connect fuse F17 (60 A) (EJB).

1

Ignition switch in position II.

2

Measure the voltage between fuse F17 (60 A)
(EJB) and ground.

3

Does the meter display battery voltage?
Yes

GO to A5

.

No

LOCATE AND RECTIFY the break in the voltage
supply of fuse F17 (60 A) (EJB) with the aid of the
wiring diagrams. CHECK system operates correctly

A5: CHECK FUSE F18 (60 A) (EJB)

Ignition switch in position 0.

1

Disconnect fuse F18 (60 A) (EJB).

2

CHECK fuse F18 (60 A) (EJB).

3

Is the fuse OK.?
Yes

GO to A6

.

No

RENEW fuse F18 (60 A) (EJB) and CHECK the
operation of the system. If the fuse blows again,
LOCATE and RECTIFY the short to ground using the
Wiring Diagrams. CHECK system operates correctly

A6: CHECK THE VOLTAGE SUPPLY TO FUSE F18 (60 A) (EJB) FOR OPEN CIRCUIT

Connect fuse F18 (60 A) (EJB).

1

Ignition switch in position II.

2

Measure the voltage between fuse F18 (60 A)
(EJB) and ground.

3

Does the meter display battery voltage?
Yes

GO to A7

.

No

LOCATE AND RECTIFY the break in the voltage
supply of fuse F18 (60 A) (EJB) with the aid of the
wiring diagrams. CHECK system operates correctly

A7: CHECK THE VOLTAGE SUPPLY TO THE STEERING WHEEL/STEERING COLUMN
MODULE FOR OPEN CIRCUIT

Ignition switch in position 0.

1

Disconnect Steering wheel/steering column module
from connector C2LS41.

2

Measure the voltage between the steering
wheel/steering column module, connector C2LS41,

pin 1, circuit SBP07A (WH/RD), wiring harness side
and ground.

3

Ignition switch in position II.

4

Does the meter display battery voltage?
Yes

GO to A8

.

No

LOCATE and RECTIFY the break in the circuits
between fuse F7 (7.5 A) (SJB) and the steering
wheel/steering column module with the aid of the
Wiring Diagrams. CHECK system operates correctly