1.The aim of this function is to receive the key fob signal and decode it. There are 8 different data included in the
radio frequency frame sent by the RKE to the IPM module:
a. Central door lock
b. Central door unlock
c. Panic function
d. Driver door window close (long press on RKE lock button)
e. Driver door window open (long press on RKE unlock button)
f. Left sliding door open/close
g. Right sliding door open/close
h. Power tailgate open/close
2. Each vehicle can have at most 2 associated key fobs. The key fob is physically separated from the key itself
(separate device).
3. Input/Output Definition and Characteristics
Central Lock/unlock
1.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).
2. Locking/Unlocking actuators are located in ADM for passenger door, DDM for driver door and RAM for sliding doors
and tailgate.
There are 5 ways of operating central lock/unlock:
a. With Key RKE
b. With Door Lock/Unlock switches located on ADM/DDM
c. With Door Lock Monitoring switches located on the passenger/driver door
d. With Door/Tailgate Key Cylinder Lock/Unlock switches located on the tailgate or passenger/driver door.
3. Functional Diagram
2.The IPM communicates with the diagnostic tester directly. But other units operate self diagnostic, input/output
monitoring and actuator operation via the IPM using the CAN communication.
INPUT MONITORING
IPM (In- Panel Module)
No. Input switch Unit
1 IPM Node Availability PRESENT/NOT PRESENT
2 FAM Node Availability PRESENT/NOT PRESENT
3 RAM Node Availability PRESENT/NOT PRESENT
4 DDM Node Availability PRESENT/NOT PRESENT
5 ADM Node Availability PRESENT/NOT PRESENT
6 IMS Node Availability PRESENT/NOT PRESENT
7 CLU Node Availability PRESENT/NOT PRESENT
8 IPM Node Failure FAILURE/ O.K
9 FAM Node Failurey FAILURE/ O.K
10 RAM Node Failure FAILURE/ O.K
11 DDM Node Failure FAILURE/ O.K
12 ADM Node Failure FAILURE/ O.K
13 IMS Node Failure FAILURE/ O.K
14 CLU Node Failure FAILURE/ O.K
15 Auto Head lamp ON/OFF
16 Headlamp low beam ON/OFF
17 High beam 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
5B2331 Driver door unlock actuator
error Assist door unlock actuator circuit open error
6 B2429 Folding motor power feed
error Folding motor power feed circuit open error
7 B2455 Safety power window motor
power feed error Safety power window IGN2 module power circuit open error
8 B2525 Illumination error Illumination circuit open error
9 B2529 Drive door courtesy lamp
error Driver door courtesy lamp circuit open error
ADM DTC List No. DTC Code DTC Passiblecause
1 B1912 Right OSM horizontal motor
or sensor error Right OSM horizontal motor circuit open error
2 B1913 Right OSM vertical motor or
sensor error Right OSM horizontal motor circuit open error
3 B1952 OSRVM defogger error Right OSM deicer circuit open error
4 B2332 Assist door unlock actuator
error Assist door lock actuator circuit open error
5 B2333 Assist door unlock actuator
error Assist door unlock actuator circuit open error
6 B2525 Illumination error Illumination circuit open error
7 B2533 Assist door courtesy lamp
error Assist door courtesy lamp circuit open error
IMS DTC List No. DTC
Code DTC
Passiblecause
1 B1954 Slide motor or sensor error Lost Communication With Slide motor sensor output for more than 2
s
2 B1955 Recline motor or sensor
error Lost Communication With Recline motor sensor output for more than
2 s
3 B1956 Front height motor or
sensor error Lost Communication With Front right motor sensor output for more
than 1 s
4 B1957 Rear height motor or sensor
error Lost Communication With Rear right motor sensor output for more
than 1 s
5 B1958 Pedal motor or sensor error Lost Communication With Pedal motor sensor output for more than 1
s
6 B2456 Seat motor sensor Vcc error Lost Seat motor sensor Vcc for more than 1 s
7 B2457 Pedal motor sensor Vcc
error Lost Pedal motor sensor Vcc for more than 1 s
Driving Actuator
IPM ACTUATOR LIST
No. Description ValueControl
1 Windshield Defog Switch Indicator Output ON/OFFContinuously ON
2Rear Defog Switch Indicator Output ON/OFFContinuously ON
3 Rear Fog Lamp Switch Indicator Output ON/OFFContinuously ON
4 VAS Switch Indicator Output ON/OFFContinuously ON
5 Back Up Signal Output ON/OFFContinuously ON
6 Micro Burglar Relay Drive Output ON/OFFContinuously ON
7 Ignition Key Hole Illumination ON/OFFContinuously ON
8 Adjustable Pedal On Off Signal Output ON/OFFContinuously ON
9 Power Feed To Sunroof Relay Coil ON/OFFContinuously ON
10 Horn Relay Drive ON/OFF0.5 sec ON then OFF
11 Sound Mute Signal Output ON/OFFContinuously ON
12 Panel Lights Trip Computer Output ON/OFFContinuously ON
13 Micro MTS Burglar Alarm Output ON/OFFContinuously ON
14 Auto Light Sensor 5V Ref ON/OFFContinuously ON
15 Burglar Alarm Indicator ON/OFFContinuously ON
16 AV Tail Output ON/OFFContinuously ON
17 VAS ON/OFFOne Issue of voice alarm
message
18 Chime ON/OFFContinuously ON with 0.6
sec period
FAM ACTUATOR LIST No. Description ValueControl
1 Front Washer ON/OFF1 sec ON then OFF (once)
2 Rear Washer ON/OFF2 sec ON then OFF (once)
3 Right Headlamp High ON/OFFContinuously ON
4 Right Headlamp Low ON/OFFContinuously ON
5 Right Lamp Park ON/OFFContinuously ON
6 Right Fog Lamp ON/OFFContinuously ON
7 Right Turn Signal ON/OFFContiuously ON with (80 +/ -
5) cycles per minute, Duty: 50%
8 Left Headlamp High ON/OFFContinuously ON
9 Left Headlamp Low ON/OFFContinuously ON
10 Left Lamp Park ON/OFFContinuously ON
11 Left Fog Lamp ON/OFFContinuously ON
12 Left Turn Signal ON/OFFContiuously ON with (80 +/ -
5) cycles per minute, Duty: 50%
13 IGN2 Control ON/OFFContinuously ON
14 Windshield Defog Timer ON/OFFContinuously ON
15 Wiper On Off ON/OFFContinuously ON
16 Wiper Low speed ON/OFF3 wiping with LOW speed
17 Wiper High speed ON/OFF3 wiping with HIGH speed
18Burglar Alarm horn ON/OFFContiuously ON with 60
cycles per minute, Duty:50%
RAM ACTUATOR LIST No. Description ValueControl
1 Room Lamp LS ON/OFFContinuously ON
2 Room Lamp LS Door ON/OFFContinuously ON
3 Luggage Lamp LS ON/OFFContinuously ON
4 LQG Motor Close ON/OFF3 sec ON then OFF (once)
5 LQG Motor Open ON/OFF3 sec ON then OFF (once)
6 RQG Motor Close ON/OFF3 sec ON then OFF (once)
7 RQG Motor Open ON/OFF3 sec ON then OFF (once)
8 RSD Power Window Up ON/OFF3 sec ON then OFF (once)
9 RSD Power Window Down ON/OFF3 sec ON then OFF (once)
10 LSD Power Window Up ON/OFF3 sec ON then OFF (once)
11 LSD Power Window Down ON/OFF3 sec ON then OFF (once)
12 LH PSD Open Close Signal ON/OFF0.5 sec ON then OFF
(once)
13 RH PSD Open Close Signal ON/OFF0.5 sec ON then OFF
(once)
14 PTG Open Close Signal ON/OFF0.5 sec ON then OFF
(once)
15 PSD PTG On Off Signal ON/OFFContinuously ON
16 Park Signal ON/OFFContinuously ON
17 Start Signal ON/OFFContinuously ON
18 Rear Defog ON/OFFContinuously ON
19 Rear Fog Lamps ON/OFFContinuously ON
20 Right Turn Signal Lamp ON/OFFContiuously ON with (80 +/ -
5) cycles per minute, Duty: 50%
21 Left Turn Signal Lamp ON/OFFContiuously ON with (80 +/ -
5) cycles per minute, Duty: 50%
22 Back Up Lamp Back Up Warning System Unit ON/OFFContinuously ON
23 Left/Right Tail Licence Side Marker ON/OFFContinuously ON
24 Door Lock ON/OFF0.5 sec ON then OFF
(once)
25 Door Unlock ON/OFF0.5 sec ON then OFF
(once)
26 Rear Wiper Motor ON/OFF5 sec ON then OFF (once)
27 Rear Blower Switch
& Rear Monitor
illumination ON/OFF
Continuously ON
0.5 sec ON then OFF
28Fuel Filler Door Solenoid ON/OFF0.5 sec ON then OFF
(once)
29 Map Lamp LS ON/OFFContinuously ON
DDM ACTUATOR LIST No. Description ValueControl
1 Door Courtesy Lamp ON/OFFContinuously ON
2 Door Lock Out ON/OFF0.5 sec ON then OFF
(once)
3 Door Unlock Out ON/OFF0.5 sec ON then OFF
(once)
4 OSRVM Up ON/OFF3 sec ON then OFF (once)
5 OSRVM Down ON/OFF3 sec ON then OFF (once)
6 OSRVM Left ON/OFF3 sec ON then OFF (once)
7 OSRVM Right ON/OFF3 sec ON then OFF (once)
8 OSRVM Defog ON/OFFContinuously ON
9 Folding Motor Power Feed ON/OFFContinuously ON
10 Safety Power Window Auto Up Out ON/OFF0.2 sec ON then OFF
(once)
11 Safety Power Window Up Out ON/OFF3 sec ON then OFF (once)
12 Safety Power Window Auto Down Out ON/OFF0.2 sec ON then OFF
(once)
13 Safety Power Window Down Out ON/OFF3 sec ON then OFF (once)
14 Power Window up Out ON/OFF3 sec ON then OFF (once)
15 Power Window Down Out ON/OFF3 sec ON then OFF (once)
16 Illumination Out ON/OFFContinuously ON
ADM ACTUATOR LIST No. Description ValueControl
1 Door Courtesy Lamp ON/OFFContinuously ON
2 Door Lock Out ON/OFF0.5 sec ON then OFF
(once)
3 Door Unlock Out ON/OFF0.5 sec ON then OFF
(once)
4 OSRVM Up ON/OFF3 sec ON then OFF (once)
5 OSRVM Down ON/OFF3 sec ON then OFF (once)
6 OSRVM Left ON/OFF3 sec ON then OFF (once)
7 OSRVM Right ON/OFF3 sec ON then OFF (once)
8 OSRVM Defog ON/OFFContinuously ON
9 Power Window up Out ON/OFF3 sec ON then OFF (once)
10 Power Window Down Out ON/OFF3 sec ON then OFF (once)
11 Illumination Out ON/OFFContinuously ON
IMS ACTUATOR LIST
Fuel Filler Door Release Actuator