GF54.30-P-0002CE Instrument Cluster (IC), Function
GF54.30-P-0002CE Instrument Cluster (IC), Function
MODEL 204.0 /2 as of model year 2009 /YoM 08
MODEL 204.3
MODEL 204.9
A1 Instrument cluster
A2 Radio (with code (523) MB Audio 20 radio or code (510) Audio 20 with CD changer)
A2/56 Radio with auto pilot system (with code (525) MB Audio 50 APS radio or code (511) Audio 50 APS with DVD changer)
A6n1 Stationary heater control unit (with code (228) Stationary heater)
A40/3 COMAND controller unit (with code (527) COMAND APS with single DVD drive (with navigation) or code (512) COMAND APS with DVD changer or code (528) COMAND with DVD changer)
A40/8 Audio/COMAND display (with code (523) Radio MB Audio 20 or code (510) Audio 20 with CD changer or code (525) Radio MB Audio 50 APS or code (511) Audio 50 APS with DVD changer or code (527) COMAND APS with single DVD drive (with navigation) or code (512) COMAND APS with DVD changer or with code (528) COMAND with DVD changer)
A40/11 Multifunction camera (With code (238) Active Lane Keeping Assist or with code (476) Automatic lane recognition or with code (513) Speed Limit Assist or with code (608) Adaptive Highbeam Assist)
A76 Left front reversible emergency tensioning retractor (with code (299) PRE-SAFE)
A76/1 Right front reversible emergency tensioning retractor (with code (299) PRE-SAFE)
A89 DISTRONIC electric controller unit (with code (233) DISTRONIC PLUS or code (237) Active Blind Spot Assist or code (238) Active Lane Keeping Assist)
B4/1 Left fuel level indicator sensor
B4/2 Right fuel level indicator sensor
B11/4 Coolant temperature sensor
B14 Outside temperature sensor
B29/4 Left rear bumper radar sensor (with code (234) Blind Spot Assist)
B29/5 Right rear bumper radar sensor (with code (234) Blind Spot Assist)
B70 Crankshaft Hall sensor (with engine 156, 272, 274, 642)
E1n1 Left xenon light control unit (model 204.0/2 up to 28.2.11, model 204.9 up to 31.5.12 with code (614) Bi-xenon headlamp unit or code (615) Bi-xenon headlamp unit with integrated curve illumination or code (616) Bi-xenon headlamp unit with integrated asymmetrical curve illumination or code (618) Bi-xenon headlamps or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent Light System (right-hand traffic))
E2n1 Right xenon light control unit (model 204.0/2 up to 28.2.11, model 204.9 up to 31.5.12 with code (614) Bi-xenon headlamp unit or code (615) Bi-xenon headlamp unit with integrated curve illumination or code (616) Bi-xenon headlamp unit with integrated asymmetrical curve illumination or code (618) Bi-xenon headlamps or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent Light System (right-hand traffic))
L5 Crankshaft position sensor (with engine 271, 646, 651)
L6/1 Left front axle speed sensor
L6/2 Right front axle speed sensor
L6/3 Left rear axle speed sensor
L6/4 Right rear axle speed sensor
N2/10 Supplemental restraint system control unit
N3/9 CDI control unit (with diesel engine)
N3/10 ME-SFI [ME] control unit (with gasoline engine)
N10/1 Front SAM control unit with fuse and relay module
N10/2 Rear SAM control unit with fuse and relay module
N15/3 Electronic transmission control control unit (with transmission 722.6)
N15/5 Electronic selector lever module control unit (with transmission 722)
N28/1 Trailer recognition control unit (with code (550) Trailer hitch)
N30/4 Electronic Stability Program control unit
N32/1 Driver seat control unit (with code (275) Memory package (driver seat, steering column, mirrors))
N32/2 Front passenger seat control unit (with code (242) Electrically adjustable front passenger seat with memory)
N62 Parking system control unit (with code (220) PARKTRONIC or code (230) Exclusive Parking Assist or code (235) Active Parking Assist)
N62/2 Video and radar sensor system control unit (with code (233) DISTRONIC PLUS or code (237)
Active Blind Spot Assist or code (238) Active Lane Keeping Assist)
N69/1 Left front door control unit
N69/2 Right front door control unit
N69/5 KEYLESS-GO control unit (with code (889) Keyless-Go)
N71/1 Headlamp control unit (model 204.0/2 as of 1.3.11, model 204.3, model 204.9 as of 1.6.12 with code (615) Bi-xenon headlamp unit with integrated curve illumination or code (616) Bi-xenon headlamp unit with integrated asymmetrical curve illumination or code (621) Intelligent Light System (left-hand traffic) or code (622) Intelligent
Light System (right-hand traffic))
N72/1 Upper control panel control unit
N72/1s50 ECO start/stop function button (with model 204.0/2 as of 1.6.10 with code (B03) ECO start/stop function, with model 204.9 as of 1.12.10 with code (B03) ECO start/stop function)
N73 Electronic ignition switch control unit
N80 Steering column module control unit
N88 Tire pressure monitor control unit (with code (470) Tire pressure monitor (standard) or with code (475) Tire pressure monitor (premium), Schrader)
N123/4 Emergency call system control unit (with code (348) Emergency call/ assist system or code (359) TELEAID emergency call system)
N135 Steering wheel electronics
N145 Transmission mode control unit (with transmission 722.930)
S68/3 Driver seat belt buckle restraint system switch
S68/4 Front passenger seat belt buckle restraint system switch
S68/5 Left rear seat belt buckle switch
S68/6 Right rear seat belt buckle switch
S68/14 Center rear seat belt buckle switch
S110 Left multifunction steering wheel button group
S110s1 Scroll forward/back button
S110s3 System selection button
S110s4 "Back" and voice control system OFF button
S110s6 Press OK n/
S110s7 Reset and "Back" button
S111 Right multifunction steering wheel button group
S111s1 Buttons + and - for setting specific functions and volume control
S111s3 Accept/terminate phone call button
Y3/8n4 Fully integrated transmission- control control unit (with transmission 722.9)
A up to 31.11.09
B As of 1.12.09
C With code (220) PARKTRONIC
D With code (230) Exclusive parking assist
CAN A Telematics CAN
CAN B Interior CAN
CAN C Drive train CAN
CAN D Diagnostic CAN
CAN E Chassis CAN
CAN G Front end CAN
CAN H Vehicle dynamics CAN
LIN 1 Instrument panel LIN
LIN E1 Steering LIN
Display elements
A1 Instrument cluster
A1e1 Left turn signal indicator light
A1e2 Right turn signal indicator light
A1e3 High beam indicator lamp
A1e4 Fuel reserve indicator lamp
A1e9 Seat belt warning lamp
A1e15 Supplemental restraint system indicator lamp
A1e16 Preglow indicator lamp (with diesel engine)
A1e17 Antilock brake system indicator lamp
A1e18 Rear fog light indicator lamp (as of 1.6.09)
A1e30 ESP OFF indicator lamp (model 204.077/277/377)
A1e32 ESP(R)/ASR warning lamp OFF (as of 1.6.10)
A1e38 Standing light indicator lamp (as of 1.6.12)
A1e41 Electronic Stability Program warning lamp
A1e51 Brake system warning lamp
A1e54 Coolant temperature warning lamp
A1e57 Front fog lamp indicator lamp (as of 1.6.09)
A1e58 Engine diagnosis indicator lamp
A1e59 DISTRONIC warning lamp (with code (233) Distronic Plus)
A1e66 Tire pressure monitor warning lamp (with code (470) Tire pressure monitor (standard) or code (475) Tire pressure monitor (premium), Schrader)
A1e67 Low beam indicator lamp
A1h1 Warning buzzer
A1h2 Turn signal light function check, acoustic
A1p1 Coolant temperature gauge
A1p2 Fuel level indicator
A1p4 Outside temperature indicator (model 204.0/2/3/9 (except 204.077/277/377) without code (442) Comfort multifunction steering wheel)
A1p5 Tachograph
A1p6 Digital clock (model 204.0/2/3/9 (except 204.077/277/377) without code (442) Comfort multifunction steering wheel)
A1p7 Travel distance display (model 204.0/2/3/9 (except 204.077/277/377) without code (442) Comfort multifunction steering wheel)
A1p8 Speedometer
A1p12 Gear display
A1p13 Multifunction display (with code (442) Comfort multifunction steering wheel, model 204.077/277/377)
A1p16 Transmission mode display
CAN B Interior CAN
CAN E Chassis CAN
Instrument cluster, general
The instrument cluster notifies the driver of all dynamic and static driving conditions as well as about the current condition of the systems installed in the vehicle.
In the event of any faulty or safety-relevant vehicle functions, various warnings are displayed on the instrument cluster.
The following displays are incorporated into the instrument cluster in order to be able to convey information to the driver:
- Permanent displays (e.g. vehicle speed, rotational speed, tank contents)
- Indicator lamps (green, yellow or blue) (e.g. turn signals, high beams)
- Warning lamps (red) (e.g. coolant level, brake fluid level)
- Travel distance display (model 204 (except 204.077/277/377) without code (442) Comfort multifunction steering wheel)
- Multifunction display (with code (442) Comfort multifunction steering wheel, model 204.077/277/377)
The "Instrument cluster (IC), function" function description includes the following functions:
^ Function sequence for activate instrument cluster
^ Function sequence for indicator lamp test
The following functions are also possible; they are described in separate documents:
^ Control/warning messages, function
^ Display operating conditions, function
^ Comfort displays, function
^ Trip computer, function
^ Settings on workshop level, function
Function sequence for activate instrument cluster
For the following events the background illumination for the travel distance indicator or the multifunction display in the instrument cluster are activated:
- Open or close driver door
- Unlocking vehicle via radio or infrared
- New fault entry with the attribute "Wake display"
- Operation of the button group of the left multi function steering wheel when transmitter key is inserted
The scale illumination is also activated by the instrument cluster under the following conditions:
- Standing lamps ON
- Circuit 15R ON
After switching off circuit 15R, the instrument cluster remains active for t = 30 s. If a fault exists this time is increased to t = 120 s.
Additional function requirements for indicator lamp test
^ Circuit 15 ON
Function sequence for indicator lamp test
The indicator lamp test serves the function test of certain warning lamps and indicator lamps in the instrument cluster.
The instrument cluster carries out this test automatically each time circuit 15 is switched on. The electronic ignition lock control unit transmits the status of circuit 15 over the chassis CAN.
The function of the following warning and indicator lamps is checked during the indicator lamp test:
- Fuel reserve indicator lamp
- Seat belt warning lamp
- Supplemental restraint system indicator lamp
- Preglow indicator lamp (on diesel engine)
- Antilock brake system indicator lamp
- ESP OFF indicator lamp (model 204.077/277/377)
- ESP(R)/ASR warning lamp OFF (as of 1.6.10)
- Electronic Stability Program warning lamp
- Brake system warning lamp
- Coolant temperature warning lamp
- Engine diagnosis indicator lamp
- DISTRONIC warning lamp (with code (233) Distronic Plus)
- Tire pressure monitor warning lamp (with code (470) Tire pressure monitor (standard) or with code (475) Tire pressure monitor (premium), Schrader)
The indicator lamp test is terminated when the engine is started.
The following indicator lamps are not tested:
- Left turn signal indicator light
- Right turn signal indicator light
- High beam indicator lamp
- Rear fog light indicator lamp (as of 1.6.09)
- Standing light indicator lamp (as of 1.6.12)
- Front fog lamp indicator lamp (as of 1.6.09)
- Low beam indicator lamp
Detailed information on the warning and indicator lamps is available in the "Instrument cluster component description" document.
