Ford Galaxy / Ford S-MAX. Manual — part 868

Normal mode:

The full functionality of all electrical systems is available in normal mode.

Crash mode:

Crash mode is activated as soon as the restraints control module (RCM) registers a
sufficiently severe vehicle impact.
The vehicle is then centrally unlocked if it was locked at the time of the crash.
In addition the hazard warning lights are activated.
Crash mode is deactivated if the ignition key is turned to position "0" and then back to
position "II" after at least 500 ms. The hazard warning switch needs to be operated to
deactivate the hazard warning lights.

PATS

The PATS function is integrated in the GEM. Correspondingly, the send/receive unit is
directly connected to the GEM (previously it was connected to the powertrain control
module (PCM)).

After reading in the key code (in ignition lock position "II"), a corresponding message is
placed by the GEM on the HS CAN databus for the PCM.

The ABS module is queried at the same time.

Depending on the outcome of this query and the status of the key, the PCM then issues the
start enable.

Central module configuration

Previously, modules in the vehicle have been configured with the aid of WDS and the
"Module Programming" function (Inhale/Exhale). Here, the current status of each module is
read into the WDS and then saved in the new module.

A new module configuration method, the so-called central module configuration, is used on
Galaxy/SMax 2006.5 (02/2006-) vehicles.

Here, all of the necessary configuration parameters are stored in the GEM at the factory,
and from there they are transmitted via the CAN bus network to the individual modules.

The WDS is equipped with a new routine for performing the central module configuration
which is used to replace or subsequently change configuration data. Instead of reading the
data into the WDS as was done in the past, they are transmitted by the GEM to the relevant
module. WDS is only used to initiate and monitor the process.

For safety reasons all configuration data which are stored in the GEM are also stored in
parallel in the instrument cluster. If the GEM then needs to be replaced, this means that the
required configuration data can be read out from the instrument cluster with the aid of
WDS and then transferred to the new GEM.

The GEM checks the configuration data for consistency and stores DTCs in the event of any
faults (WDS trouble codes).

In the event of a fault the functionality of a particular module may be restricted.

When the GEM is replaced it is necessary to re-learn the keys for the remote control and for
the PATS system. The procedure for doing this is the same as on the current vehicles.

VIN identification

During the VIN identification, the VIN is saved in individual modules at the factory.

As soon as a module is identified when the ignition is switched on (even after the battery
has been disconnected), it can be operated without further inputs.

If no VIN or an invalid VIN is read in from a module then this is stored in a memory.

Subsequently the functionality of the module may be restricted depending on its use.

Tire pressure monitoring system

The system comprises the following components:

GEM
Instrument cluster
Control components
4 sensors with corresponding aerials

The GEM contains the entire control electronics for the tire pressure monitoring system, and
it evaluates the input signals.

In addition, the GEM also holds the required configuration parameters (tire pressure tables
for the relevant vehicle) which are needed for evaluation of the data.

In addition to the input signals which are part of the system, the GEM also processes the
following signals for the evaluation:

Vehicle speed signal
Ambient air pressure

The information required for the display in the instrument cluster are transmitted by the
GEM via the MS CAN databus to the instrument cluster.

The instrument cluster displays all of the information for the driver via the multifunction
display and by means of an additional warning lamp (yellow/red).

The aerials are used to locate and initialize the tire pressure warning sensors. They are
each located above a wheel arch trim panel and connected to the GEM via a shielded cable.

Recorded data are sent to the GEM once per minute.

If the vehicle is parked for a longer period of time then the tire pressure data are obtained
in a 13-hour interval. After approximately 7 days the tire pressure warning sensors stop
sending data to the GEM.

The system is equipped with a self-diagnosis function which is integrated in the GEM. Any
fault codes which are present can be read out with the aid of WDS.

Climate control

Evaporator temperature.

On vehicles with air conditioning the evaporator temperature is measured via the
evaporator temperature sensor. On vehicles with manual air conditioning the evaluation is
performed by the GEM.

If a temperature below +1 °C is determined then the GEM sends a signal to the PCM via the
HS CAN bus which then shuts off the air conditioning clutch. If the temperature is above
+2.5 °C the GEM sends a signal to the PCM and the air conditioning clutch is switched back
on again.

Electric booster heater

If the interior temperature is set to "HI" on the heater / air conditioning control assembly or
the temperature control switch is set to its highest setting then the DEATC (electronic
temperature control) module sends an "electric booster heater ON" request signal via the
MS CAN bus to the GEM. If a manual air conditioning system is installed, the signal is
transmitted via a conventional cable connection.

The GEM controls the electric booster heater according to the available alternator capacity.

In contrast to other Ford vehicles, there is no link to the coolant temperature or the

ambient temperature.

The electric booster heater electronics activates three output stages depending on a pulse
width modulated signal (PWM) generated by the GEM. The output stages switch the three
heating elements of the electric booster heater ON or OFF individually, whereby the heating
periods of the individual elements can overlap. Due to the variable switch-on duration,
continuously variable temperature control is possible. The overall heating power of the
three heating elements is linearly proportional to the PWM signal. If the PWM signal is
below 10% or above 95%, the electric booster heater is not activated.

Multifunction Electronic Modules - Generic
Electronic Module (GEM)

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

Print

Diagnosis and Testing

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 connector.

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 persists after the visual inspection, PERFORM a fault diagnosis with

the Ford approved diagnostic tool and RECTIFY any displayed faults in accordance
with the displayed fault description. Afterwards DELETE the displayed fault(s).
CHECK the operation of the system.

5. 5. For vehicles with no stored fault(s), PROCEED in accordance with the Symptom

Chart according to the fault symptom.

6. 6. Following checking or elimination of the fault 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.

Diagnostic Trouble Code (DTC) Table

CAUTION: Before replacing the GEM in the event of a GEM malfunction, PERFORM a

"hardware reset" after WORKING THROUGH the relevant DTC. To do this, disconnect
connector C1BP02-G from the GEM and reconnect it. CHECK the operation of the system.
If the malfunction persists, make sure that the latest release of the software is loaded in
the Ford approved diagnostic tool and that the correct variant of the GEM is installed.
CONFIGURE the GEM again using the Ford approved diagnostic tool. If the fault occurs
again, RENEW THE GEM.

Terminal Probe Kit

418-S035

Digital multimeter
The Ford approved diagnostic tool

Electrical

Fuses.

Wiring harness.

Electrical connectors.

DTC

Description

Action

B110A-77, B10ED- Circuit of the front or rear Refer to the Ford approved diagnostic tool.