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Home >> Kia Truck >> 2009 >> Borrego 2WD V6-3.8L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Description and Operation >> Description >> Part 2

Part 2


Key Hole Illumination
Description
This function provides an illumination of the ignition key cylinder to help the driver inserting the key.
The key cylinder illumination depends on:
The driver and assist door status (open or close) provided by the RAM,
The ignition key position (off, acc, run, start) managed by the IPM,
Ignition key reminder (inserted or not) managed by the IPM,
The Burglar Alarm state managed by the IPM (depending on vehicle variation),
Functional Diagram





IPM
Description
The keyhole illumination is switched on when receiving Driver door open switch status or Assist door open switch status CAN signals with OPEN value.
The keyhole illumination is switched off 30s after Driver door open switch status or Assist door open switch status CAN signals were received with value CLOSE.
When the ignition key switch status is RUN or START, the keyhole illumination is OFF.
When the ignition key is in OFF or ACC position, and if any transition from CLOSED to OPEN is detected on the Driver or Assist door, then the key hole illumination is switched ON for 20minute and then OFF.
When the Driver or Assist door is OPEN, and the ignition key position changes from RUN/START to OFF/ACC, then the keyhole illumination is switched ON for 20minute and then OFF.
Description
When the system enters ARM WAIT mode by Remote Key or Mechanical cylinder lock switches, the key hole illumination is switched off immediately.
Description
If the keyhole is illuminated, and both the Driver and the Assist doors status changed to CLOSED, then a 30-second timer is started.
The keyhole illumination is maintained ON while this 30-second timer is running.
While running, this 30-second timer is restarted on reception of a Driver or the Assist doors status transition.





View Enhancement

Front Wiper and Washer
Description
The vehicle is equipped with a Front Wiper and Washer, locally controlled (manual operation) by a MF switch.
This functionality is directly accessible to the driver. It consists in the possibility to activate or deactivate the wiper of the front windshield. When the driver decides to activate the front wiper, he has to choose between several modes of operation using the MF switch:
- Continuous low speed;
- Continuous high speed;
- Auto (intermittent) mode (5 levels)
Another switch is used for the front washer. It consists in activating the front washer pump, which is located under hood. The washer activation has a consequence on the activation of the front wiper in order to clean the windshield.
The driver can also be informed of the low level of washer fluid by an indication on the cluster display
Functional Diagram





IPM
Description
Interaction with Ignition Key position:
Front wiper and washer functions are active when the ignition key is in RUN position.
Else, Front wiper Ctrl and Washer Motor Ctrl are sent with OFF value.

Front wiper activation
Description
Front wiper activation modes:
- Off mode: no wiper;
- Low speed: the front wiper runs continuously with low speed;
- High speed: the front wiper runs continuously with high speed
- Mist: the front wiper runs continuously with low speed until the Mist button is released, then, the wiper stops at the next park position
Description
Washer activation logic with inactive front wiper:
When the front wiper is not active and if the washer signal is active for more than 200 ms and less than 600 ms, the following sequence is started:
T2 second (0.3 second) after the washer is switched ON, the front wiper signal is switched ON with the current level speed
T3 second (700 ms) the front wiper signal is switched OFF




T2 = 0.3 s.
T3 : 0.7 s.
Washer activation logic with inactive front wiper:
When the front wiper is not active and if the washer signal is active for more than T1=0.6 seconds, the following sequence is started:
T2 second (0.3 second) after the washer is switched ON, the front wiper signal is switched ON with the current level speed
T3 second (2.7 - 3.3 seconds) after the washer is switched OFF, the front wiper signal is switched OFF




T2 = 0.3 s.
T3 : 2.7 - 3.3 s.
Description
Washer activation logic with active front wiper:
When the front wiper is active, the current speed of the front wiper is kept during 0.3 sec of the washer signal and after T3 seconds (wiper activation due to washer) the front wiper returns to the wiping speed requested by the switch or the rain sensor. Depending on the mode of wiper that is active, the wiping action linked to the washer has to be stopped or not.
Here are the following wiper modes and the actions:









T1 > 60 ms, T2 : period of intermittence, T3 : 0.3 sec, T4 : 2.5 - 3.8 sec





FAM
Interaction with ignition key position & park switch
Description
Interaction with Ignition Key position:
Front wiper and washer functions are active when the ignition key is in RUN position.
In the START state, all the wiper and washer outputs are halted (in order to have the maximum power for the start of engine).
In the OFF and ACC states, the front wiper and washer are not activated.
Interaction with Ignition Key position:
If the ignition key leaves the RUN position while wiper operation, the wiper stops at the current position and will move to the park position the next time ignition key is RUN.
Start / stop of wiping:
When Front Wiper Ctrl CAN signal is received with:
LOW value, the output Front Wiper ON/OFF is set to ON and the output Front Wiper Low/High is set to LOW
HIGH value, the output Front Wiper ON/OFF is set to ON and the output Front Wiper Low/High is set to HIGH
OFF value, the output Front Wiper ON/OFF is set to OFF
Interaction with the park switch:
When the Front Wiper Ctrl CAN signal has OFF value and the front wiper is not parked, if the IGN2_INPUT signal goes to ON, then the output signal Front Wiper ON/OFF is set to ON and Front Wiper Low/High is not changed.
Interaction with the park switch:
When the IGN2 INPUT signal is already ON, if the Front Wiper Ctrl CAN signal has OFF value and the front wiper becomes not parked, then the output Front Wiper ON/OFF signal is not changed.

Rear Wiper and Washer
Description
The vehicle is equipped with a Rear Wiper and Washer, locally controlled (manual operation) by a Rear MF switch (RMS) connected to the IPM module. This functionality is directly accessible to the driver. It consists in the possibility to activate or deactivate the wiper of the rear glass. When the driver decides to activate the rear wiper, he has to choose between several modes of operation using the rear MF switch (RMS):
- Continuous low speed
- Rear washer switch
The rear wiper uses a bi-directional motor with integrated logic for rotation sense change, the RAM module manages the wiping period (intermittent or low speed) and park operation.
Another switch is also used for the rear washer. It consists in activating the front washer pump, located under hood and connected to the FAM module. The rear washer activation has a consequence on the activation of the rear wiper in order to clean the rear glass.
The driver can be informed of the low level of washer fluid by an indication on the cluster panel.
Functional Diagram




Rear wiper activation logic :
If the Rear Wiper Low Speed Sw is ON, then the CAN signal Rear Wiper Ctrl is sent with following logic:




+/-10% T1 = 6.2 sec, T2 = 6 sec, T3 = 700 ms

Defogger
Description
The vehicle is equipped with a defogger function, locally controlled (manual operation) by a windshield and rear defogger switches.
This function controls the heating defogger grids on windshield, rear glass, and rear view mirrors (managed by DDM and ADM).
Functional Diagram





NOTE:
The defogger of rear view mirrors managed by DDM and ADM modules is not shown on this diagram,
as it uses the same Rear defogger control CAN signal as the RAM module.

Comfort Function

Power Seat with Memory Interface
Description
This function manages the power seat and the associated memorized positions.
Power Seat with Memory Interface depends on the presence of the key in the cylinder, on its position and on the open/close state of front doors.
The Power Seat With Memory Interface function is entirely implemented in the IMS module.
Functional Diagram





Open Fuel Filler Door
Description
Open Fuel Door switch on DDM drives the solenoid for the Fuel Filler Door opening.
Functional Diagram





RAM
Description
Fuel filler door solenoid definition:
In case of closed -> open transition of Open Fuel Door Sw Sts, Fuel filler door solenoid output is set to ON while pushing the switch (Max. 10sec) then OFF.
During or after this pulse, in case of open -> closed transition of Open Fuel Door Sw Sts, there is no influence on the Fuel filler door solenoid output.
Time between 2 pulse commands:
A new CAN signal Open Fuel Door Sw Sts is received with OPEN value within 1.5s after first message will not be taken into account.

Power Window Timer
Description
This function defines the conditions for allowing use of power windows after that the ignition key has been removed from the key cylinder.
Functional Diagram





Rear Doors Power Windows
Description
Each rear door is equipped with a power window.
The RAM module manages power window motors and switches, but controls neither the window position nor the motor current. RAM does not implement any stall mechanism detection.
Functional Diagram





RAM
Description
Rear doors window control:
When a power window switch is pressed, the corresponding motor output is ON until the switch is released and no more than 10+/- 1sec

Tilt and Telescopic
Description
Tilt and Telescopic function provides a motorized steering wheel position adjustment. This equipment comes with the IMS option.
The Tilt &Telescopic CAN unit uses the ignition key position managed by the IPM.
Functional Diagram





Rear Seat Warmer
Description
IGN2 switch and the RH/LH seat warmer switches control the Rear Seat Warmer relays.
Functional Diagram





RAM
Description
Left and right rear seat warmers working condition:
The left and right rear seat warmers can be activated only if ignition key is in RUN position (Ignition Sw Sts CAN signal is received with RUN value). When the rear seat warmers (left/right) are activated and the ignition key leaves the RUN position, the rear seat warmers are stopped.
Left rear seat warmer operation:
At each OFF->ON transition detected on left rear seat warmer switch input, the left rear seat warmer relay drive output signal toggles its state.
Right rear seat warmer operation:
At each off->on transition detected on right rear seat warmer switch input, the right rear seat warmer relay drive output signal toggles its state.

Adjustable pedal
Description
Adjust Pedal allows to activate Adjustable Pedal feature; IPM needs to control the power source (by relay coil control) of the adjustable Pedal switch unit.
Functional Diagram





IPM
Description
Adjustable Pedal





x = any value
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