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Ford Galaxy / Ford S-MAX. Manual - part 651

1. 1. Check the normally open contact in the unswitched state:

1. Measure the resistance at blower relay H402, between pin 37 and pin 36,

component side.

2. Is a resistance of more than 10,000 Ohms measured?
3. If yes, go to 4.
4. If no, RENEW blower relay H402.

2. 2. Check the normally open contact in the switched state:

1. Using a fused test cable (1 A), connect pin 39 of blower relay H402, component

side, to the battery positive terminal.

2. Use a test cable to connect pin 38 of blower relay H402, component side, to the

battery negative terminal.

3. Measure the resistance at blower relay H402, between pin 37 and pin 36,

component side.

4. Is a resistance of less than 2 Ohms registered?
5. If yes, then blower relay H402 is OK.
6. If no, RENEW blower relay H402.

A/C clutch relay H401

1. 1. Check the normally open contact in the unswitched state:

1. Measure the resistance at A/C clutch relay H401, between pin 28 and pin 29,

component side.

2. Is a resistance of more than 10,000 Ohms measured?
3. If yes, go to 4.
4. If no, RENEW A/C clutch relay H401.

2. 2. Check the normally open contact in the switched state:

1. Use a fused test cable (1 A) to connect pin 31 of A/C clutch relay H401, component

side, to the battery positive terminal.

2. Use a test cable to connect pin 30 of A/C clutch relay H401, component side, to the

battery negative terminal.

3. Measure the resistance at A/C clutch relay H401, between pin 28 and pin 29,

component side.

4. Is a resistance of less than 2 Ohms registered?
5. If yes, then A/C clutch relay H401 is OK.
6. If no, RENEW A/C clutch relay H401.

Climate Control System - General
Information - Auxiliary Climate Control

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

Diagnosis and Testing

Refer to Wiring Diagrams Section 412-03A, for schematic and connector
information.

Special Tool(s)

General Equipment

Inspection and Testing

1. 1. VERIFY the customer concern.

2. 2. Visually CHECK for any obvious mechanical or electrical damage.

NOTE: Ensure correct locking of wiring harness connectors.

Visual Inspection

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

before performing any further tests. CHECK the operation of the system.

4. 4. If the concern is still present after the visual inspection, perform fault diagnosis on

the electronic engine management, the charging system, the generic electronic
module (GEM), the instrument cluster, the electronic automatic temperature control
(EATC) and the auxiliary climate control module using WDS and RECTIFY the fault
(s) displayed in accordance with the fault description. CHECK the operation of the
system.

5. 5. On a vehicle without stored fault(s), continue according to the Symptom Chart and

the corresponding symptom.

6. 6. Following checking or elimination of the fault(s) and after completion of operations,

the fault memories of all vehicle modules must be READ OUT and any stored faults
must be DELETED. READ OUT all fault memories again following a road test.

Trouble code table - vehicles with auxiliary climate control

Trouble code table - auxiliary climate control

Terminal Probe Kit

418-S035

Digital Multimeter (compatible with K-type
thermocouple)
Worldwide Diagnostic System (WDS)
Refrigerant center
Thermometer - Fluke 80 PK-8 (FSE number 260
4102 001 07)

Mechanical

Electrical

Refrigerant lines

Condenser

Drive belt

A/C compressor

Fuses

Wiring harness

Connector

Symptom chart

Diagnostic

trouble code.

Description

Action

B10BA11

Auxiliary climate control blower control
module, short-circuited (short to ground)

GO to Pinpoint Test

B10BA12

Auxiliary climate control blower control
module, short circuit to voltage

GO to Pinpoint Test

B10BA13

Auxiliary climate control blower control
module, open circuit

GO to Pinpoint Test

B10B012

Auxiliary climate control blower relay circuit,
short circuit to voltage

GO to Pinpoint Test

B10B014

Auxiliary climate control blower relay circuit,
open circuit or short-circuited (short to
ground)

GO to Pinpoint Test

B10B711

Auxiliary climate control air outlet
temperature sensor circuit, short-circuited
(short to ground)

GO to Pinpoint Test

B10B715

Auxiliary climate control air outlet
temperature sensor circuit, open circuit or
short to voltage

GO to Pinpoint Test

B102D12

Auxiliary climate control temperature control
flap actuator circuit, short circuit to voltage

GO to Pinpoint Test

B102D14

Auxiliary climate control temperature control
flap actuator circuit, open circuit or short-
circuited (short to ground)

GO to Pinpoint Test

B1B7A12

Auxiliary climate control expansion/cut-out
valve circuit, short circuit to voltage

GO to Pinpoint Test

B1B7A14

Auxiliary climate control expansion/cut-out
valve circuit, open circuit or short-circuited
(short to ground)

GO to Pinpoint Test

B1B8111

Auxiliary climate control evaporator
temperature sensor circuit, short-circuited
(short to ground)

GO to Pinpoint Test

B1B8115

Auxiliary climate control evaporator
temperatures sensor circuit, open circuit or
short to voltage

GO to Pinpoint Test

P9B6916

Power supply voltage below limit

GO to Pinpoint Test

P9B6917

Power supply voltage above limit

GO to Pinpoint Test

U014000

No communication possible with the generic
electronic module (GEM)

REFER to: Kommunikations-
Netzwerk (418-00, Diagnosis and
Testing).

U001000

No communications possible via the MS CAN
bus.

REFER to: Kommunikations-
Netzwerk (418-00, Diagnosis and
Testing).

Symptom

Possible Sources

Action

Auxiliary climate control blower motor
inoperative/not operating correctly

Fuse(s)
Circuit(s)
Auxiliary climate control blower

relay

Auxiliary climate control blower

motor

Blower switch
Auxiliary climate control blower

control module

Auxiliary climate control module
CJB (Central Junction Box)

*
*
*

*
*

GO to

Pinpoint Test

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