Ford Galaxy / Ford S-MAX. Manual — part 656

harness side.

Is a resistance of less than 2 Ohms registered?
Yes

CHECK the auxiliary climate control module using
WDS, RENEW if necessary.

No

LOCATE and RECTIFY the break in circuit VHA31A
(GN/BN) between the auxiliary climate control air
outlet temperature sensor and the auxiliary climate
control module using the Wiring Diagrams. CHECK
the operation of the system.

D3: CHECK GROUND CONNECTION FROM AUXILIARY CLIMATE CONTROL AIR OUTLET
TEMPERATURE SENSOR

Ignition switch in position 0.

1

Measure the resistance between the auxiliary climate
control air outlet temperature sensor, connector

C4HA09-A, pin 2, circuit RHA27A (GY/BU), wiring
harness side and ground.

2

Is a resistance of less than 2 Ohms registered?
Yes

GO to D5

.

No

GO to D4

.

D4: CHECK CIRCUIT BETWEEN AUXILIARY CLIMATE CONTROL AIR OUTLET
TEMPERATURE SENSOR AND AUXILIARY CLIMATE CONTROL MODULE FOR OPEN
CIRCUIT

Disconnect Connector C3H101-R from auxiliary
climate control module.

1

Measure the resistance between the auxiliary climate
control air outlet temperature sensor, connector

C4HA09-A, pin 2, circuit RHA27A (GY/BU), wiring
harness side and the auxiliary climate control
module, connector C3H101-R, pin 14, circuit RHA27A
(GY/BU), wiring harness side.

2

Is a resistance of less than 2 Ohms registered?
Yes

GO to D5

.

No

LOCATE and RECTIFY the break in circuit RHA27A
(GY/BU) between the auxiliary climate control air
outlet temperature sensor and the auxiliary climate
control module using the Wiring Diagrams. CHECK
the operation of the system.

D5: CHECK CIRCUIT BETWEEN AUXILIARY CLIMATE CONTROL AIR OUTLET
TEMPERATURE SENSOR AND AUXILIARY CLIMATE CONTROL MODULE FOR SHORT TO
GROUND

Disconnect Connector C3H101-R from auxiliary
climate control module.

1

Measure the resistance between the auxiliary climate
control module, connector C3H101-R, pin 14, circuit

RHA27A (GY/BU), wiring harness side and ground.

2

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

Component Tests

Blower relay, auxiliary climate control

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

1. Measure the resistance at the auxiliary climate control blower relay, between pin 3

and pin 5, component side.

2. Is a resistance of more than 10,000 Ohm measured?
3. If yes, goto 2.
4. If no, RENEW the auxiliary climate control blower relay.

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

1. Using a fused test cable (1 A), connect pin 1 of the auxiliary climate control blower

relay, component side, to the battery positive terminal.

2. Using a test cable, connect pin 2 of the auxiliary climate control blower relay,

component side, with the battery negative pole.

3. Measure the resistance at the auxiliary climate control blower relay, between pin 3

and pin 5, component side.

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

RENEW the auxiliary climate control air outlet
temperature sensor. CHECK the operation of the
system.

No

LOCATE and RECTIFY the short to ground in circuit
RHA27A (GY/BU) between the auxiliary climate
control module and the auxiliary climate control air
outlet temperature sensor using the Wiring
Diagrams. CHECK the operation of the system.

Climate Control System - General
Information - Air Conditioning (A/C)
Clutch Air Gap Adjustment

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

Print

General Procedures

1. Check the gap A (measure the difference

between the engaged and disengaged positions
of the air conditioning clutch) at 60° intervals
around the circumference of the pulley. Operate
the air conditioning clutch several times with the
aid of a 5 A fused cable. Refer to the relevant
wiring diagram for the correct electrical
connection.

Refer to:

Specifications

(412-00 Climate Control

System - General Information, Specifications).

2.

3. If necessary correct the gap A using spacer

washers.

4. Refer to:

Specifications

(412-00 Climate Control

System - General Information, Specifications).

5. Check the gap A as described in step 1. If

necessary, repeat steps 2-5.

Climate Control System - General
Information - Air Conditioning (A/C)
System Recovery, Evacuation and
Charging

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

Print

General Procedures

General Equipment

Vehicles with 2.0L engine

Vehicles with a diesel engine

All vehicles

Adapter for air conditioning service unit
Air conditioning service unit
Automatic calibration halogen leak detector
Electronic leak detector
UV leak detector

1. Refer to:

Air Conditioning (A/C) System Health

and Safety Precautions

(100-00 General

Information, Description and Operation).

2.

3.

4.

1. Low pressure filling connection
2. High pressure filling connection