Part 3

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

Tailgate Cinching and latching
Description
This function provides assistance in tailgate latching and cinching. The RAM sends a command to external module, connected to latching and cinching motors.
Functional Diagram





RAM
Description
Tailgate cinching and latching 30 s enable timer (1):
The tailgate cinching and latching function is enabled for 30 sec after receiving the Door Lock Ctrl CAN signal with tailgate unlock value. During this delay, the tailgate can be opened if the Inhibit Sw Sts CAN signal is received with P or N values and if the vehicle speed is ≤ 5 km/h.
During the 30 sec Cinch & Latch Timer delay:
If the tailgate close->open transition is detected during this 30 sec delay, the timer is stopped and the function becomes disabled immediately.
After this 30 sec Cinch & Latch Timer delay:
After this 30 sec delay, if no action is detected on the tailgate handle switch, the cinching and latching function is disabled (any action on tailgate handle switch is ignored).
1) This timer is not started when the vehicle state is unlocked, i.e. after successful completion of the key reminder unlock sequence or if the previous value of Door Lock Ctrl was : all unlock, rear door and tailgate unlock, rear door, tailgate and driver door unlock, rear door, tailgate and assist door unlock.
Description
Tailgate unlock logic for latch pulse generation:
-> Case 1




-> Case 2




-> Case 3




-> Case 4





Power Feed To Sun Roof Relay Coil
Description
This function controlled by the IPM defines the condition for switching on or off power feed to Sun Roof Relay Coil.
Functional Diagram





Driver Information

Cluster Indicators and Chime Control
Description
The cluster indicators, managed by the cluster module, show the state of activated functions or warn the driver if a problem occurs. Some visual cluster indications are associated with a chime warning.
The IPM, FAM or RAM sends on the CAN the status of several switches and sensors. The cluster module receives the status of several switches and sensors from the CAN and activates the corresponding indicators.
The following table gives a list of existing cluster indicators and associated chime warnings:





The chime control function provides also the several chime warnings that are not associated with the cluster visual indications.
The following table gives a list of these warnings:





All following SMK warnings are activated by IPM when receiving CAN signals from the SMK ECU.





Functional Diagram





Seat Belt Warning
Description
Seat Belt Warning Chime and Indicator synchronization:
When the Seat Belt Warning Chime is activated, the Seat Belt Indicator is blinking simultaneously.
Time Chart of Seat Belt Reminder
Time Chart #1




T1 : 6 ± 1 sec
T2 : 0.5 ± 0.1 sec
Time Chart #2




T1 : 6 ± 1 sec
T2 : 0.5 ± 0.1 sec
Time Chart #3




T1 : 6 ± 1 sec
T2 : 0.5 ± 0.1 sec

Safety and Security

Central Lock/Unlock
Description
Central locking/unlocking logic is controlled by IPM. Locking/Unlocking inputs are located in ADM, DDM (Lock/Unlock switch, door knobs, door key cylinder) and in IPM (RKE receiver).
Locking/Unlocking actuators are located in ADM for assist door, DDM for driver door and RAM for rear doors and tailgate.
There are 5 ways of operating central lock/unlock:
- With Key fob
- With Smart key ECU (when equipped)
- With Door Lock/Unlock switches located on ADM/DDM (assist/driver door trim).
- With Door Key Cylinder Lock/Unlock switches located on assist/driver door.
- Treatment for those switches depends on the country.
RAM/ADM/DDM Input Control
Except for RKE, all inputs for controlling lock/unlock actions are located on ADM, DDM or RAM.
ADM/DDM/RAM controls those inputs and manages the configuration according to the country. IPM controls central lock/unlock process.
If a lock/unlock command is issued by ADM/DDM to IPM through CAN, IPM does not check the command validity according to the country.
Door Lock Monitoring Switches
Door Lock Monitoring Switches are equipped on all vehicles. ADM/DDM send Assist door Lock Monitor Switch status/Driver door lock monitor switch status to IPM with value locked when the corresponding Door Monitoring Switch indicates a locked door and unlocked otherwise.
RAM sends rear right door Lock Monitor switch status/rear left door lock monitor switch status to IPM with "Locked" value when the right/left rear doors are locked, otherwise with "Unlocked" value.
Concerning Tailgate Open Switch status is closed handle disabled when it is closed and locked and closed handle enabled when it is closed and unlocked
Door Key Cylinder
When Assist/Driver Door Key Cylinder request lock/unlock, ADM/DDM send assist door Key Cylinder Sw Sts/ Driver door Key Cylinder Sw Sts CAN signal with value lock/unlock.
Door Lock Switches
When Assist/Driver Door Lock Switch request lock, ADM/DDM send Assist door lock switch status /Driver door lock switch status CAN signal with value lock.
When Assist/Driver Door Lock Switch request unlock, ADM/DDM send Assist door lock switch status /Driver door lock switch status CAN signal with value unlock.
ADM/DDM Actuators Control
ADM and DDM control lock/unlock motors.
DDM
LOCK/UNLOCK is performed when DDM receives Door Lock Ctrl CAN signal from IPM
ADM
LOCK/UNLOCK is performed when ADM receives Door Lock Ctrl CAN signal from IPM

Main Functional Diagram





Lock/Unlock With Door Lock Switch
Description
Lock/unlock with Door Lock Switch does not depend on Ignition Key position.

IPM
Description
Working conditions
For vehicle not equipped with burglar alarm :
All following requirements are applicable.
For vehicle equipped with burglar alarm :
In ARM alarm state, there is no action on door lock switch. So, all following requirements are applicable in alarm state DISARM, PREARM, 30SEC DELAY, ARM_WAIT, ALARM, AFTER_ALARM and REARM.
Lock
Description
Locking process
Upon a transition of Assist door lock switch status or Driver door lock switch status CAN signal from any value to LOCK value, IPM issues Door Lock Ctrl CAN signal with value LOCK_ALL for 500 ms.
Unlock
Description
Unlocking process
Upon a transition of Assist door lock switch status or Driver door lock switch status CAN signal from any value to UNLOCK value, IPM issues Door Lock Ctrl CAN signal with value UNLOCK_ALL for 500 ms.
Unlocking process
When Assist door lock switch status and Driver door lock switch status CAN signal state change at the same moment, IPM uses Driver door lock switch status state for lock/unlock operation
This locking/unlocking process doesn't depend on the Driver Door Open Switch status, Assist Door Open Switch status, Rear Doors Open Switch status Tailgate Open Switch Status.
This locking/unlocking process doesn't activate or deactivate hazard lamps, horn or interior lamps.

Lock/Unlock With Door Key Cylinder
Description
When a lock/unlock command is requested using Assist/Driver door key cylinder, ADM/DDM modules deal with this request according to §‎0 and use CAN signal to issue the command to IPM, then IPM issues central lock/unlock when Assist/driver door lock monitoring switches is locked/unlocked.
When IPM issues lock/unlock command, it does not check monitoring switches to make sure command was successful.

2-Turn Unlock
The 2-turn unlock process divides the unlocking of all doors into 2 steps. The first unlock command unlocks only the driver door, the second one unlocks all the doors.

Key Off Unlock
Description
When the key is withdrawn from Ignition Key Cylinder if any door is locked, the IPM issues a command to unlock only locked doors.

Key Reminder Unlock
Description
The purpose of this function is to avoid locking the doors when the key is inserted in the Ignition Key Cylinder and the vehicle speed is lower than 3 km/h.

IPM
Description
Requirements for SMK only
There is no insertion of ignition key with SMK equipment, all following requirements are applicable for SMK equipment with these changes :
"key is inserted" must be replaced by CAN signal Key Reminder Sw Sts is set to value inserted
"key is not inserted, key is removed" must be replaced by CAN signal Key Reminder Sw Sts is set to value not inserted
If a SMK reminder unlock is on going, a Key reminder unlock is not taken into account.
Description
Key reminder unlock, driver door lock change
When ignition key is inserted into the ignition key cylinder, driver door is OPEN and driver door lock monitoring sw status changes from unlocked to locked, then Key Reminder Unlock Ctrl signal is sent with valueDD long unlock(consisting in 1s +/-0.1s long driver door unlock)
Key reminder unlock, assist door lock change
When ignition key is inserted into the ignition key cylinder, assist door is OPEN and assist door lock monitoring sw status changes from unlocked to locked, then Key Reminder Unlock Ctrl signal is sent with valuelong unlock
Key reminder unlock, second driver door unlock
If driver door remains locked after the 1s DD long unlock and if driver door is still OPEN and key is still inserted, then Key Reminder Unlock Ctrl signal is sent with values
no value/DD short unlockat a rate of 0.5s/0.5s three times.
Key reminder unlock, second unlock
If assist door remains locked after the 1s long unlock and if assist door is still OPEN and key is still inserted, then Key Reminder Unlock Ctrl signal is sent with valuesno value/short unlockat a rate of 0.5s/0.5s three times.
Key reminder unlock, inserting Key
When inserting a key into ignition key cylinder with driver door opened and locked, only DD long unlock unlock is issued (no DD short unlock).
Key reminder unlock, inserting Key
When inserting a key into ignition key cylinder with assist door opened and locked, only long unlock unlock is issued (no short unlock).
Key reminder unlock, driver door opening
If driver door is CLOSE to OPEN when key reminder switch is IN and driver's door LOCKED, then issue DD long unlock pulse.
Key reminder unlock, assist door opening
If assist door is CLOSE to OPEN when key reminder switch is IN and assist door LOCKED, then issue long unlock pulse.
Key reminder unlock, driver door closing.
When closing driver door within 0.5 second after locking this door, Key Reminder Unlock Ctrl signal withDD long unlockvalue is sent.
Key reminder unlock, assist door closing
When closing assist door within 0.5 second after locking this door, Key Reminder Unlock Ctrl signal withlong unlockvalue is sent.

RAM
Description
Key Reminder Unlock
When CAN signal Key Reminder Unlock Ctrl is received with Short Unlock,
Door Unlock is sent with value ON during 0.5s to right and left rear doors
Key Reminder Unlock
When CAN signal Key Reminder Unlock Ctrl is received with Long Unlock,
Door Unlock is sent with value ON during 1s to Tailgate, right and left rear doors
Key Reminder Unlock Priority
CAN signal Key Reminder Unlock Ctrl LONG or SHORT UNLOCK have higher priority than Door Lock Ctrl lock or unlock command
Key reminder unlock, tailgate unlock
When CAN signal Key Reminder Unlock Ctrl is received with Short Unlock or Long Unlock and if tailgate is closed, tailgate Open Sw Sts is set to Closed Handle Enabled

Crash Unlock
Description
In case of crash of the vehicle, all doors must be unlocked as fast as possible.