Multifunction Electronic Modules: Other Ford Kuga II

Body Control Module

The BCM controls

1. Battery saver function
2. Brake shift interlock
3. Delayed accessory function
4. Dimmable backlighting
5. Exterior lighting
6. Ignition state messaging
7. Interior lighting
8. Key validation (part of PATS )
9. Liftgate release
10. PATS (without push button start)
11. Perimeter alarm
12. Power door locks (vehicles without door module)
13. Post crash alert function
14. RKE system (without push button start)
15. TPMS
16. Transport mode

Remote Function Actuator Module

The RFA module controls

1. Push button start function
2. Key validation (part of PATS )
3. PATS
4. RKE signals (output controlled by the BCM )

Battery Saver

The battery saver feature is uses to save battery voltage. The BCM provides automatic shut-off of the interior and exterior lamps after a time-out period when the ignition is off.

For more information regarding the interior lighting battery saver feature

Refer to: INTERIOR LIGHTING - SYSTEM OPERATION AND COMPONENT DESCRIPTION .

Battery Load Shed

The BCM uses the battery current sensor to keep track of the battery state of charge in order to save the remaining battery charge when necessary.

For more information regarding the battery load shed feature

Refer to: CHARGING SYSTEM - SYSTEM OPERATION AND COMPONENT DESCRIPTION .

Post Crash Alert Function

The post crash alert is a function controlled by the BCM . If the RCM determines an impact of enough severity has occurred (the air bags may or may not be deployed), the post crash alert function activates.

The post crash alert function

1. sounds the horn.
2. turns on the interior lights.
3. unlocks the doors.
4. turns off the wipers, if on.

The post crash alert function can be turned off by

1. pressing the hazard flasher lamp switch (which may need to be pressed twice).
2. pressing the RKE transmitter unlock button.
3. pressing the RKE transmitter panic button.

Field Effect Transistor (FET) Protection

A Field Effect Transistor (FET) is a type of transistor that, when used with module software, monitors and controls current flow on module outputs. The Field Effect Transistor (FET) protection strategy prevents module damage in the event of excessive current flow.

The BCM utilizes a Field Effect Transistor (FET) protective circuit strategy for many of its outputs (for example, a headlamp output circuit). Output loads (current level) are monitored for excessive current (typically short circuits) and are shut down (turns off the voltage or ground provided by the module) when a fault event is detected. A short circuit DTC is stored at the fault event and a cumulative counter is started.

When the demand for the output is no longer present, the module resets the Field Effect Transistor (FET) circuit protection to allow the circuit to function. The next time the driver requests a circuit to activate that has been shut down by a previous short (Field Effect Transistor (FET) protection) and the circuit is still shorted, the Field Effect Transistor (FET) protection shuts off the circuit again and the cumulative counter advances.

When the excessive circuit load occurs often enough, the module shuts down the output until a repair procedure is carried out. Each Field Effect Transistor (FET) protected circuit has 3 predefined levels of short circuit tolerance based on the harmful effect of each circuit fault on the Field Effect Transistor (FET) and the ability of the Field Effect Transistor (FET) to withstand it. A module lifetime level of fault events is established based upon the durability of the Field Effect Transistor (FET). If the total tolerance level is determined to be 600 fault events, the 3 predefined levels would be 200, 400 and 600 fault events.

When each tolerance level is reached, DTC U1000:00 should set along with the short circuit DTC that was stored on the first failure. These Diagnostic Trouble Codes (DTCs) cannot be cleared until the vehicle is repaired.

After the repair, it is necessary to clear the Diagnostic Trouble Codes (DTCs). Use the clear DTC operation on the scan tool, cycle the ignition, and run the BCM on-demand self-test.

The module never resets the fault event counter to zero and continues to advance the fault event counter as short circuit fault events occur. If the number of short circuit fault events reach the third level, DTC U3000:49 sets along with the associated short circuit DTC . DTC U3000:49 cannot be cleared and the module must be replaced after the initial fault is repaired.

Gateway Function

The BCM acts as a gateway module by receiving information in one format and transmitting it to other modules using another format. For example, the BCM receives the vehicle speed data from the ABS module over the HS-CAN , converts the data into a MS-CAN message and sends (gateways) the message to other network modules such as the IPC . This enables network communication between modules that do not communicate using the same network ( HS-CAN or MS-CAN ).

Transport Mode

During vehicle build, some modules (such as the IPC and the BCM ) are set to factory mode. When the vehicle build is complete, the vehicle is set to transport mode.

Transport mode is used to reduce the drain on the battery during longer periods when the vehicle is not used. Various system functions can be altered or disabled when in the transport mode. While in transport mode, the IPC displays TRANSPORT MODE in the message center. Transport mode can be disabled and placed into normal operation mode. Refer to: TRANSPORT AND FACTORY MODE DEACTIVATION .

Body Control Module (BCM)

The BCM is a multifunction module that requires a PMI when replaced.

Refer to: MODULE CONFIGURATION - SYSTEM OPERATION AND COMPONENT DESCRIPTION .

Remote Function Actuator (RFA) Module

The RFA module is a multifunction module that requires a PMI when replaced.

Refer to: MODULE CONFIGURATION - SYSTEM OPERATION AND COMPONENT DESCRIPTION .

Possible Sources

1. Communication network concern
2. Charging system concern
3. PCM
4. BCM

1. Communication network concern
2. Battery voltage concern
3. ABS module
4. BCM

1. Communication network concern
2. Battery voltage concern
3. PSCM
4. BCM

1. Communication network concern
2. Battery voltage concern
3. RCM
4. BCM

1. Communication network concern
2. Battery voltage concern
3. IPC
4. BCM

1. Communication network concern
2. Battery voltage concern
3. HVAC module
4. BCM

1. Communication network concern
2. Battery voltage concern
3. DDM
4. BCM

1. Communication network concern
2. Battery voltage concern
3. PDM
4. BCM

1. Communication network concern
2. Battery voltage concern
3. RFA module
4. BCM

1. BCM output circuit short
2. BCM

1. Wiring, terminals or connectors
2. BCM

1. Wiring, terminals or connectors
2. BCM

1. Fuse
2. Wiring, terminals or connectors
3. Charging system concern
4. Battery voltage concern
5. BCM

1. Charging system concern
2. Battery voltage concern
3. BCM

1. Wiring, terminals or connectors
2. PCM
3. BCM

1. Wiring, terminals or connectors
2. PCM
3. BCM

Scheme 4

1. P1 CHECK THE PCM (POWERTRAIN CONTROL MODULE) FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect PCM C1551B . NOTE: If the fused jumper wire fuse fails during this step, refer to the «OEM WIRING DIAGRAMS»(ref-619454) to identify the possible causes of the circuit short. Connect fused jumper wire: Lead 1 Measurement/Action Lead 2 C1551B-29 Ground Ignition ON. Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs). Wait 10 seconds. NOTE: Disregard DTC B1206:11 during this step. DTC B1206:11 sets with the PCM disconnected. Using a diagnostic scan tool, perform the BCM self-test. Is DTC B1206:15 still present? Yes : REMOVE the fused jumper wire. GO to P2 No : REMOVE the fused jumper wire. INSTALL a new PCM . Refer to the appropriate article for the procedure.
2. P2 CHECK THE CRASH EVENT SIGNAL FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect BCM C2280A . Ignition ON. Measure: Positive Lead Measurement/Action Negative Lead C2280A-5 Ground Is any voltage present? Yes : REPAIR the circuit. No : GO to P3
3. P3 CHECK THE CRASH EVENT SIGNAL FOR AN OPEN Ignition OFF. Measure: Positive Lead Measurement/Action Negative Lead C2280A-5 C1551B-29 Is the resistance less than 3 ohms? Yes : GO to P4 No : REPAIR the circuit.
4. P4 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION Disconnect and inspect all BCM connectors. Repair: corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary Reconnect the BCM connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present. Is the concern still present? Yes : CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new BCM . Refer to: «Body Control Module (BCM)»(ref-658829-S13317600002014092900000) . No : The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

1. Communication network concern
2. Battery voltage concern
3. RGTM
4. BCM

1. Battery voltage concern
2. PCM

1. Communication network concern
2. Battery voltage concern
3. TRM
4. BCM

1. Communication network concern
2. Battery voltage concern
3. BCM
4. RFA module

1. Wiring, terminals or connectors
2. Battery voltage concern
3. Charging system concern
4. PCM
5. RFA module

Deactivation