
Dimmable Backlighting
1.Working Conditions
The Dimmable backlighting is directly managed by the rheostat.
Power Seat Switch Illumination
1.Working Conditions
The IPM sends a CAN message to the DDM so that this module illuminate the power seat switches.
2. Functional Diagram
View Enhancement Function
Front Wiper And Washer
1.Front wiper working conditions
These functions are active when Ign2 switch ON
In the OFF and ACC states, the front wiper is not activated. If IGN2 turns OFF during wiper operation, the wiper
stops at the current position and will move to the park position on the next IGN2 ON. In these states, the front
washer is not active.
2. Front washer working condition
The front washer functionality is directly available to the driver. It consists in activating the front washer pump,
which is located under hood. As long as the driver activates the washer multifunction switch, the front washer is
active.
3. Functional diagram
Rear Wiper And Washer
1.Rear wiper working conditions
a. The rear wiper is available in RUN state.
b. In the START state, all the wiper and washer outputs are halted and then activated again.
c. In the OFF and ACC states, the rear wiper stops its movement at current position. The rear wiper will move to
the park position at the next IGN ON. In these states, the rear washer is not activated.
2. Rear washer working condition
a. If the washer signal is active less than 60ms, the signal is neglected.

b.If the washer signal is active for T1 (between 60ms and 300ms), the rear wiper output is turned on for T2
(2.5~3.8 sec.), T3 (300ms) after the washer has been turned ON.
Rear washer activated for T1 : [60ms;300ms]
T1 : 0.06 ~ 0.3 sec.
T2 : 2.5~3.8sec.
T3 : 0.3 sec.
3. Functional diagram
Defog
This function controls the heating defog grids on windshield, rear glass, and rear view mirrors.
1. Working Conditions
The defog function can be activated only when engine is running and ignition key is in RUN position.
a. When windshield defog switch is pushed, windshield defog is activated for 20 minutes.
b. While windshield defog is on, the windshield defog button is illuminated
c. If the switch is pushed again while defog is already active, defog stops.
d. If the engine stops while defog is on, defog stops and it is NOT automatically turned on when the engine is
started again
e. Rear defog works exactly in the same way as windshield defog using the rear defog switch button as input.
f. When rear defog is active, rear defog switch indicator is ON.
g. Rear defog ctrl output controls rear glass defog as well as rear view mirrors defog.
2. Rear defog pause
a. When IPM receives Tailgate Flasher CAN message, rear defog is inhibited for 30s
b. The 20min rear defog timer is frozen during this pause.
c. If the user turns on rear defog function while this pause is going on, Rear defog ctrl is set to ON only at the end
of the pause.
d. This pause has no impact on rear defog switch illumination.
e. When IPM receives Tailgate open CAN message transition to OPEN value, this 30 s rear defog pause is also
started, it works the same way as described above.

Battery Removal
a.If the battery is removed with the system in the ARM state, the system will be placed into the ARM state upon
battery reconnect.
b. The ALARM state will be re- activated if the battery is disconnected, then reconnected, with the system in an
ALARM state.
c. If the battery is disconnected and reconnected with the system in AFTER ALARM state, the alarm will be re-
activated.
d. The system will enter DISARM mode if the battery is disconnected during the ALARM WAIT state.
Panic
a.If RKE PANIC signal is received, Siren output and hazard lamp operate for 27 seconds and the system return to
the previous state as soon as the PANIC function finishes.
b. The PANIC function will be stopped if any RKE signal is received during PANIC activation..
c. If Key reminder switch is ON during PANIC function is operating, PANIC is stopped immediately.
d. If the system goes to ALARM mode during PANIC function is operating, PANIC is stopped immediately and then
ALARM function should be activated.
e. During ALARM state;
If RKE PANIC signal is received, ALARM mode is maintained and PANIC function should be ignored. ALARM has
higher priority than PANIC function.
f. During AFTER_ALARM state;
If RKE PANIC signal is received, AFTR_ALARM mode is maintained and PANIC function should be activated.
Safe & Rescue Mode
The goal of those modes is to be able to cope with failures that may happen on some of the most critical
functionalities (for the driver security) of the system.
Safe Mode
The safe mode is entered in case of system problems such as:
a. Incoherent inputs on monitored signals. In this case, safe mode is the debouncing time before the inputs are
considered INVALID. Note that today, we have no way to detect if the rain/light sensor is in working operation or
not. It means that a driver action will be required in case of failure of this sensor;
b. Loss of the CAN frame containing the monitored signal:
c. Loss of the CAN network: CAN goes to BUS OFF state, safe mode is the time necessary for detecting the BUS
OFF state.
In all cases, the action in safe mode is to maintain the previous state of the system (for lighting and wiping). The list of
monitored signals is the same as in rescue mode
Exiting Safe Mode
The software safe mode is exited and the module goes back to the normal mode when: a. On IPM, hardware inputs return to a coherent state;
b. The lost CAN signal comes back while timeout has not elapsed;
c. The CAN network returns to a normal state without reaching BUS OFF state.
Software safe mode is also exited when the software rescue mode is entered (problem does not disappear).
Hardware safe mode is exited and the module goes back to normal mode if the internal problem disappears (watchdog
is properly triggered again). If the problem stays, hardware safe mode is exited to enter hardware rescue mode.
Rescue Modes
The rescue mode consists in activating some safety functions when IGN2 = ON: a. Switch on the low beams (FAM), park lamps (FAM), tail lamps (RAM) and cluster backlighting (IPM);
b. Unlock of all the doors when the rescue mode is entered with IGN2 = ON
c. Front wipers do not need to be turned on by software in rescue mode because wipers can be turned on by
manually setting the MF switch to low speed. The FAM software must keep the same state as before entering the
rescue mode.
d. When IGN2 = OFF, low beams, park/tail lamps and cluster backlighting are turned off.
Entering Rescue Modes

Rescue mode is entered when some important CAN signal or hardware input are not available. Rescue mode is
entered when one of the following conditions is true:
IPMa. Timeout on CAN signal InhibitSwSts, to detect loss of CAN connection with FAM.
b. Timeout on CAN signal StopLpErrorSts, to detect loss of CAN connection with RAM.
c. MF Light Switch information is invalid: when the signals coming from MF Light Switch are not coherent for more
than 2 s, CAN signal ParkTailHeadLpCtrl is sent with INVALID value and rescue mode is entered.
d. Front Wiper MF Switch information is invalid: when the signals coming from Front Wiper MF Switch are not
coherent for more than 2 s, CAN signal FWiperCtrl is sent with INVALID value and rescue mode is entered.
e. CAN is in Bus Off state
RAM a. Timeout on CAN signal InhibitSwSts, to detect loss of CAN connection with FAM.
b. Timeout on CAN signal ParkTailHeadLpCtrl or FWiperCtrl, to detect loss of CAN connection with IPM.
c. ParkTailHeadLpCtrl = INVALID or unknown value
d. FWiperCtrl = INVALID or unknown value
e. CAN is in Bus Off state
FAM a. Timeout on CAN signal StopLpErrorSts, to detect loss of CAN connection with RAM
b. Timeout on CAN signal ParkTailHeadLpCtrl or FWiperCtrl, to detect loss of CAN connection with IPM
c. ParkTailHeadLpCtrl = INVALID or unknown value
d. FWiperCtrl = INVALID or unknown value
e. CAN is in Bus Off state
For all CAN signals, timeout duration is 2.5 times signal periodicity.

18Rear fog lamp ON/OFF
19 Front fog lamp ON/OFF
20 Park tail lamp ON/OFF
21 Main room lamp ON/OFF
22 Main room lamp door ON/OFF
23 Left turn signal ON/OFF
24 Right turn signal ON/OFF
25 Front wiper low speed(from rain sensor) ON/OFF
26 Front wiper low speed switch(from multi function switch) ON/OFF
27 Front wiper high speed(from rain sensor) ON/OFF
28 Front wiper high speed switch(from multi function switch) ON/OFF
29 Rear wiper low speed switch ON/OFF
30 Rear wiper intermittent switch ON/OFF
31 Front wiper intermittent switch ON/OFF
32 Front washer ON/OFF
33 Rear washer ON/OFF
34 Windshield defog ON/OFF
35 Rear defog ON/OFF
36 Parking brake ON/OFF
37 Hazard switch ON/OFF
38 Seat- belt ON/OFF
39 VAS ON/OFF
40 Front wiper mist switch ON/OFF
41 Sunroof open(When operating) OPEN/CLOSED
42 PSD PTG on/off switch signal ON/OFF
43 Flash to pass ON/OFF
44 Ignition key reminder INSERTED/NOT INSERTED
45 LH PSD open/close(Over head console) ON/OFF
46 PTG open/close(Over head console) ON/OFF
47 RH PSD open/close(Over head console) ON/OFF
48 Crash sensor input from airbag unit ON/OFF
49 Adjustable pedal backward ON/OFF
50 Adjustable pedal forward ON/OFF
51 IGN1 ON/OFF
52 IGN2 ON/OFF
53 ACC ON/OFF
54 MTS unlock input ON/OFF
55 Hood Open switch OPEN/CLOSED
FAM (Front Area Module) No. Input switch Unit

1Inhibitor Switch Neutral ON/OFF
2 Inhibitor Switch Park ON/OFF
3 Inhibitor Switch Reverse ON/OFF
4 Brake Fluid Sensor State OK/LOW
5 Washer Fluid Sensor State OK/LOW
6 Fuel Filter State OK/NG
7 Oil Pressure Switch State OK/LOW
8 Vacuum Switch State OK/LOW
9 IGN2 ON/OFF
10 Front Wiper Park Switch State Park/Out of park
11 Stop lamp fuse check input OK/NG
12 Windshield defog operation check OK/NG
RAM (Rear Area Module) No. Input switch Unit
1 Tailgate Flasher Signal(From PTG) ON/OFF
2 Stop Lamp switch ON/OFF
3 PSD PTG Door Lock Monitoring Switch UNLOCKED/LOCKED
4 Passenger Door Open Switch ON/OFF
5 Driver Door Open Switch OPEN/CLOSE
6 Tailgate Door Open Switch OPEN/CLOSE
7 RSD Open Switch OPEN/CLOSE
8 LSD Open Switch OPEN/CLOSE
9 RSD Power Window Up Switch ON/OFF
10 RSD Power Window Down Switch ON/OFF
11 LSD Power Window Up Switch ON/OFF
12 LSD Power Window Down Switch ON/OFF
13 RQG Power Motor Close Switch ON/OFF
14 RQG Power Motor Open Switch ON/OFF
15 LQG Power Motor Close Switch ON/OFF
16 LQG Power Motor Open Switch ON/OFF
17 IGN2 ON/OFF
18 Rear Wiper Park Switch Park/Out of park
19 Rear defog operation check input ON/NG
20 Tailgate Key Cylinder Unlock Switch ON/OFF
21 Tailgate Key Cylinder Lock Switch ON/OFF
DDM (Driver door module) No. Input switch Unit
1 Door Lock Monitoring Switch LOCK/UNLOCK
2 Door Lock Switch ON/OFF

6IGN2 Switch ON/OFF
7 Front Right Window Up Switch ON/OFF
8 Front Right Window Down Switch ON/OFF
IMS Module No. Input switch Unit
1 IGN2 Switch ON/OFF
2 Slide front manual switch ON/OFF
3 Slide rear manual switch ON/OFF
4 Slide front limit switch ON/OFF
5 Slide rear limit switch ON/OFF
6 Recline front manual switch ON/OFF
7 Recline rear manual switch ON/OFF
8 "P" position switch ON/OFF
Self-diagnosis
IPM DTC List
No. DTC Code DTC Passiblecause
1 B1102 BATTERY VOLTAGE LOW Vbat < 9V
2 B1588 FR WIPER/WASHER MF
SW
MF switch status is not coherent for more than 2s
3 B1589 RR WIPER/WASHER MF
SW
4 B1590 LIGHT MF SW ERROR
MF switch status is not coherent for more than 2s
5 B1591 TURN SIGNAL MF SW
ERROR
6 B1602 CAN BUS PHYSICAL BUS
FAILURE Physical error indicated by network management
7 B1605 DDM COMM. LOST& BUS
FAILURE DDM is missing in system configuration information reported from
network management.
8 B1606 ADM COMM. LOST& BUS
FAILURE ADM is missing in system configuration information reported from
network management.
9 B1607 IMS COMM. LOST& BUS
FAILURE IMS is missing in system configuration information reported from
network management.
10 B1611 FAM COMM. LOST& BUS
FAILURE FAM is missing in system configuration information reported from
network management.
11 B1612 RAM COMM. LOST& BUS
FAILURE RAM is missing in system configuration information reported from
network management.
12 B1613 CLU COMM. LOST& BUS
FAILURE CLU is missing in system configuration information reported from
network management.
13 B1624 EEPROM FAILURE Failed attempt to read or write EEPROM
14 B1627 EEPROM CORRUPTION Data in EEPROM is not coherent
15 B1628 MODULE CONF.
CONFLICT Hardware and software configuration are not coherent

24B2575
GND Left parking lamp circuit short to ground error
25 B2577 LEFT P/LAMP OPEN Left parking lamp circuit open error
RAM DTC List No. DTC
Code DTC
Passiblecause
1 B1624 EEPROM FAILURE Failed attempt to read or write EEPROM
2 B1627 EEPROM CORRUPTION Data in EEPROM is not coherent
3 B1646 S/W RESCUE MODE As soon as the module enters rescue mode
4 B2115 REAR DEFOG RELAY FAIL Command active and check entry not active
5 B2441 RR WIPER P. POS.
DETECT FAIL Command active and park position does not change during 5s
6 B2524 BRAKE LAMP OPEN Stop lamps open circuit error
7 B2535 RIGHT T/SIGNAL LAMP
SHORT TO GND Right turn signal lamp circuit short to ground error
8 B2537 RIGHT T/SIGNAL LAMP
OPEN Right turn signal lamp circuit open error
9 B2539 LEFT T/SIGNAL LAMP
SHORT TO GND Left turn signal lamp circuit short to ground error
10 B2541 LEFT T/SIGNAL LAMP
OPEN Left turn signal lamp circuit open error
11 B2579 RR TAIL MARKER LAMP
SHORT TO GND Right tail license side marker lamp circuit short to ground error
12 B2581 RR TAIL MARKER LAMP
OPEN Right tail license side marker lamp circuit open error
13 B2583 RL TAIL MARKER LAMP
SHORT TO GND Left tail license side marker lamp circuit short to ground error
14 B2585 RL TAIL MARKER LAMP
OPEN Left tail license side marker lamp circuit open error
15 B2587 BACK UP LAMP SHORT
TO GND Back up lamps for Back Up Warning System unit circuit short to
ground error
16 B2589 BACK UP LAMP OPEN Back up lamps for Back Up Warning System unit circuit open error
17 B2598 RR BLOWER SW ILLU.
CIR. OPEN Rear blower switch illumination circuit open
18 B2599 RR BLOWER SW ILLU.
SHORT TO GND Rear blower switch illumination short to ground
DDM DTC List No. DTC Code DTC Passiblecause
1 B1910 Left OSM horizontal motor
or sensor error Right OSM horizontal motor circuit open error
2 B1911 Left OSM vertical motor or
sensor error Right OSM horizontal motor circuit open error
3 B1952 OSRVM defogger error Left OSM deicer circuit open error
4 B2330 Driver door lock actuator
error Assist door lock actuator circuit open error