1.Necessary conditions to switch ON :
a. By using the stalk: Head lamp switch in position 'Head lamp Low Beam' and Front Fog lamp sw ON
b. When Auto light function activated and Auto light Sensor signal status is 'HL ON' and Front Fog lamp sw ON
2. Necessary conditions to switch OFF :
a. When Auto light function activated and Auto light Sensor signal status is not ON
b. When Front fog lamp sw OFF.
3. Functionnal Diagram
Backup Lamps Function
1.Necessary conditions to switch ON :
a. When inhibit sw 'R' read by FAM is active and transmitted to RAM by CAN signal.
2. Necessary conditions to switch OFF :
a. When inhibit sw 'R' read by FAM is not active and transmitted to RAM by CAN signal.
3. Functional diagram
Stop Lamps Function
1.Necessary conditions to switch ON the stop lamps:
a. Pushing on the brake pedal.
2. Necessary conditions to switch OFF the stop lamps:
a. Releasing the brake pedal.
3. Functional diagram
Auto Light Function
1.The Auto light function is active when the Head lamp switch is positioned to 'Auto' and the Key is in RUN position.
The auto light sensor is powered on the status ACC, START and RUN of the key position. Based on the Auto light
sensor values corresponding to the exterior brightness level, it controls automatically the lighting of the Park and tail
lamps or / and the Head lamps Low Beam depending on the country.
2. Auto light Sensor detection table
Mode Tail Lamps
Head Lamps Low Beam
Lux (Lux) Voltage(V) Lux (Lux)Voltage(V)
ON < 24 ± 5.2 <1.77 ± 0.08V Same as Tail lamps
OFF > 48 ± 10.5 > 3.47 ± 0.1V Same as Tail lamps
Drl Function
1.The Auto DRL function operates the Head lamps High Beam at 50% of full illumination.
The park and tail are managed by the auto light sensor.
The Auto DRL function is active if:
a. The ignition switch is on RUN position
b. The engine is running.
c. The Park brake switch is OFF.
2. The DRL function is inactive when one of above conditions is released.
When the DRL function is active, the Head lamps High Beam can't be turned ON, except for the Flash To Pass
activation.
Gearbox Status
The status of the gearbox is sent on the CAN network when the CAN network is available.
Oil Pressure Switch Status
The status of the oil pressure switch is sent on the CAN network when the CAN network is available.
Fuel Filter Status
The FAM receives on digital input the status of the fuel filter (Fuel Filter Input) and sends it (Fuel filter switch) on the
CAN network.
Washer Fluid Sensor Status
The FAM receives on digital input the status of the washer fluid sensor and sends it on the CAN network.
If Washer Fluid Low Input is LOW for more than 10 sec, FAM sends the warning message.
Seat Belt Warning Status
The IPM receives on digital input the status of the seat belt switch and sends the seat belt warning on the CAN
network.
If the Ignition switch status is in RUN or START when the Seat Belt Sw Input is FASTENED, the seat belt warning
indicator is blinking for 6 seconds.
When Seat Belt switch Input is NOT FASTENED, the seat belt warning indicator is blinking for 6 seconds.
If the Seat Belt switch Input is FASTENED during the 6 seconds, the seat belt warning indicator is blinking till the end
of the 6 seconds.
In North America:
the seat belt warning indicator is blinking when Ignition switch is on the status RUN or START and Seat Belt Sw Input
is NOT FASTENED.
Parking Brake Indicator
The indicator manages 3 functions: brake fluid sensor, parking brake warning and vacuum switch.
The vacuum function is available for diesel engine only
The FAM receives on digital input the status of the vacuum switch and the ABS EBD warning and sends them on the
CAN network.
The status of the vacuum switch and the ABS EBD warning are sent on the CAN network when the CAN network is
available.
The FAM receives on digital input the status of the brake fluid sensor and sends it on the CAN network.
The status of the brake fluid sensor is sent on the CAN network when the CAN network is available.
The IPM receives on digital input the status of the parking brake switch and by CAN network the status of the vacuum
switch, the status of the ABS EBD warning, the status of the brake fluid sensor and the speed of the vehicle.
switch, the status of the ABS EBD warning, the status of the brake fluid sensor and the speed of the vehicle.
The IPM sends the park brake indicator control on the CAN network.
The indicator is lighted if the vacuum switch or ABS EBD warning are on or brake fluid sensor is low or park brake
switch is on.
If the speed of the vehicle is over 10 km/h and ignition switch is on the status RUN the park brake indicator control is
blinking at 50% duty in 0.6 second if Parking Brake switch Input is active. In this case Vacuum switch, ABS EBD
warning and Brake Fluid sensor are ignored.
The park brake indicator is blinking on the same time that the chime is ringing. If a CAN signal among Vacuum switch,
EBD warning or Brake Fluid Sens switch is INVALID, out of range or not received this CAN signal is considered to be
OFF.
If VehicleSpeed CAN signal is INVALID or not received, it is considered to be 0 kph.
Charging Voltage Control
The IPM receives on analog input the voltage of generator and sends a warning.
When the voltage of generator L pass strictly above 10V, the state of the CAN variable.
Turn Indicators Status
The status of the turn indicators are sent on the CAN network when the CAN network is available.
High Beam Status
The status of the high beam is sent on the CAN network when the CAN network is available.
Front Fog Lamp Status
The status of the front fog lamp (lightning and state of the bulbs) is sent on the CAN network when the CAN network
is available.
Doors Open Warning
The RAM receives on digital input the status of the driver door open switch and sends it on the CAN network.
The RAM receives on digital input the status of the passenger door open switch and sends it on the CAN network.
The RAM receives on digital input the status of the left sliding door open switch and sends it on the CAN network.
The RAM receives on digital input the status of the right sliding door open switch and sends it on the CAN network.
When vehicle speed is under 10 kph, with ignition key not inserted and any door OPEN, DoorsOpenWngCtrl stays ON
for 20 min and then is turned OFF.
Tailgate Open Switch Status
When vehicle speed is under 10 kph, ignition key is inserted and Tailgate open switch is OPEN, Tailgate Open
warning stays ON forever (IPM can enter sleep mode).
When vehicle speed is under 10 kph, with ignition key not inserted and lgate open switch is OPEN, Tailgate Open
warning stays ON for 20 min and then is turned OFF.
Chime Control
1.The chime warns the driver that a problem is occurred.
These warning are:
a. Seat belt
b. Parking on
c. Over speed
d. Key reminder
e. Light Warning
f. Doors Open
g. Tailgate open warning
2. Chime sound priority:
a. 1st : Seatbelt warning
b. 2nd : Overspeed warning
c. 3rd : Door open warning
d. 4th : T/Gate open warning
e. 5th : Key operated warning
f. 6th : Parking Brake warning
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
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
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