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- Jan 29, 2014
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- VCDS Serial number
- HC424490
This thread is a work in progress so I plan to edit this first post over time based on replies, suggestions, etc.
In some fault code texts and control module identification information or wiring diagrams, you may see a letter-number combination like J104 or G17:
I thought these were ostensibly DIN component identifiers, come up with by the Deutsches Institut für Normung who document and dictate seemingly every aspect of German life:
http://en.wikipedia.org/wiki/Deutsches_Institut_für_Normung
They have a very non-standard design for the headquarters, oh the irony:
http://en.wikipedia.org/wiki/Deutsches_Institut_für_Normung#/media/File:DIN-Sitz_Berlin.jpg
... but it looks like VW might have kinda made it up on their own because the closest I can find to a spec is EN 61346 which uses A for "ABS control unit, radio, two-way radios, mobile phone, alarm system, equipment assembly, ignition trigger box, electronic control unit, cruise control". That clearly doesn't match up with what VW does.
So the idea is, that regardless of the year/make/model/engine/etc. of a vehicle and regardless of the location of the component, it should be possible to determine the general type of component (from the letter part) and the specific nature of it (from the number part). For example, J is a control module, a little computer. It can be something that you can talk to with a scan tool (like J104, an ABS controller), or something that doesn't talk directly to a scan tool (like a J293 Coolant FC (Fan Control) Control Module) which has some logic in it but which doesn't talk to the outside world, at least not directly.
Let's start with Component Code Prefixes which may be a single letter but there seem to be a letter then X combo like "JX" as well:
A - Battery
B - Starter
C - Alternator/generator
D - Ignition/starter switch
E - Switches — these are usually more complex switches: A/C control head, sunroof regulator
F - Switches — door, hood, brake, clutch, trunk, multifunction, etc.
G - Gauges and sensors
H - Horn
J - Control modules, relays, electronic relays
K - Indicator/warning lights
L - Lights
M - Lights
N - Solenoids/inductors/ignition — fuel injectors, purge, ignition coil, ignition module, etc.
P - Spark plug connector
Q - Spark plugs
R - Radio, CD, telephone, navigation
S - Fuse, circuit breaker, protection device
T - Wire connector V Motor — window motors, vacuum pumps, etc.
W - Lights — interior, trunk
Z - Heating elements — O2 sensor heater, heated seats, heated mirrors, etc
After each of these prefix letters, there may be a wide range of numbers (or no numbers for the really cool, OG components):
In some fault code texts and control module identification information or wiring diagrams, you may see a letter-number combination like J104 or G17:
Address 03: ABS Brakes (J104) Labels: 7P0-907-379.clb
Part No SW: 7P0 907 379 K HW: 7P0 907 379 A
Component: MK25A H36 0418
Part No SW: 7P0 907 379 K HW: 7P0 907 379 A
Component: MK25A H36 0418
00779 - Outside Air Temp Sensor (G17)
012 - Electrical Fault in Circuit - Intermittent
012 - Electrical Fault in Circuit - Intermittent
I thought these were ostensibly DIN component identifiers, come up with by the Deutsches Institut für Normung who document and dictate seemingly every aspect of German life:
http://en.wikipedia.org/wiki/Deutsches_Institut_für_Normung
They have a very non-standard design for the headquarters, oh the irony:
http://en.wikipedia.org/wiki/Deutsches_Institut_für_Normung#/media/File:DIN-Sitz_Berlin.jpg
... but it looks like VW might have kinda made it up on their own because the closest I can find to a spec is EN 61346 which uses A for "ABS control unit, radio, two-way radios, mobile phone, alarm system, equipment assembly, ignition trigger box, electronic control unit, cruise control". That clearly doesn't match up with what VW does.
So the idea is, that regardless of the year/make/model/engine/etc. of a vehicle and regardless of the location of the component, it should be possible to determine the general type of component (from the letter part) and the specific nature of it (from the number part). For example, J is a control module, a little computer. It can be something that you can talk to with a scan tool (like J104, an ABS controller), or something that doesn't talk directly to a scan tool (like a J293 Coolant FC (Fan Control) Control Module) which has some logic in it but which doesn't talk to the outside world, at least not directly.
Let's start with Component Code Prefixes which may be a single letter but there seem to be a letter then X combo like "JX" as well:
A - Battery
B - Starter
C - Alternator/generator
D - Ignition/starter switch
E - Switches — these are usually more complex switches: A/C control head, sunroof regulator
F - Switches — door, hood, brake, clutch, trunk, multifunction, etc.
G - Gauges and sensors
H - Horn
J - Control modules, relays, electronic relays
K - Indicator/warning lights
L - Lights
M - Lights
N - Solenoids/inductors/ignition — fuel injectors, purge, ignition coil, ignition module, etc.
P - Spark plug connector
Q - Spark plugs
R - Radio, CD, telephone, navigation
S - Fuse, circuit breaker, protection device
T - Wire connector V Motor — window motors, vacuum pumps, etc.
W - Lights — interior, trunk
Z - Heating elements — O2 sensor heater, heated seats, heated mirrors, etc
After each of these prefix letters, there may be a wide range of numbers (or no numbers for the really cool, OG components):
Code:
A - Battery
A1 - Auxiliary battery
A2 - Drive battery
A19 - Voltage converter
A27 - Right LED headlamp power output module 1
A31 - Left LED headlamp power output module 1
A37 - Drive motor inverter
Code:
AX2 - High voltage battery 1
AX4 - High voltage battery charger 1
Code:
B - Starter
Code:
C - Generator (GEN)
C1 - Voltage regulator
C24 - Suppressor
Code:
D - Ignition/starter switch
D2 - Immobilizer reader coil
Code:
E1 - Light Switch
E7 - Fog Lamp Switch
E20 - Instrument Panel Illumination Dimmer Switch
E26 - Glove Compartment Light Switch
F34 - Brake fluid level warning switch
E40 - Left front window regulator switch
E43 - Mirror adjusting switch
E45 - Cruise control switch
E48 - Mirror selector switch
E53 - Left rear window regulator switch in driver door
E55 - Right rear window regulator switch in driver door
E81 - Right front power window switch in driver door
E97 - Driver memory seat control head
E107 - Front passenger door window regulator switch
E150 - Driver interior locking switch
E168 - Folding mirror adjustment switch
E190 - Emergency off button
E198 - Front passenger interior locking switch
E217 - Alarm system deactivation switch
E218 - Memory seat position 1 button
E219 - Memory seat position 2 button
E227 - Cruise control -SET- button
E229 - Emergency Flasher Button
E231 - Exterior rearview mirror heating switch
E233 - Rear lid remote release button
E234 - Release button in rear lid handle
E256 - ASR/ESP Button
E263 - Mirror folding switch
E265 - Rear A/C display control head
E273 - Left rear interior locking switch
E274 - Right rear interior locking switch
E277 - Front passenger memory seat control head
E283 - Driver seat memory button
E284 - Garage door opener control head
E308 - Driver interior locking button
E313 - Selector lever
E318 - Child safety lock button
E319 - Fuel filler door release button, in the driver door
E338 - Memory seat positions 1 and 2 button
E340 - Front passenger memory seat button
E406 - Rear lid lock button in luggage compartment
E415 - Entry and start authorization switch
E466 - Passenger side emergency -off- button
E510 - Left child safety lock button
E511 - Right child safety lock button
E512 - Power window control head in driver door
E530 - Lane change assistance button
E538 - Electromechanical parking brake button
E540 - -AUTO HOLD- button
E616 - Interior monitoring and vehicle inclination deactivation button
E656 - Electrical drive button
E660 - Driver side rear multicontour seat switch
E661 - Passenger side rear multicontour seat switch
E662 - Seat reclining function remote control
E662 - Seat reclining function remote control
E672 - Right rear seat reclining position button
E673 - Right rear seat upright position button
E683 - Left rear seat adjustment control head
E684 - Left rear seat position memory button
E685 - Left rear seat position recall button
E686 - Left rear seat upright position button
E687 - Left rear seat reclining position button
E688 - Right rear seat adjustment control head
E689 - Right rear seat position memory button
E690 - Right rear seat position recall button
E700 - Left rear power window button in left rear door
E701 - Right rear power window button in left rear door
E705 - Right rear power window button in right rear door
E706 - Left rear power window button in right rear door
E710 - Driver power window button
E711 - Driver side rear power window button
E713 - Passenger side rear power window button
E716 - Front passenger power window button
E735 - Driving profile selection button
E806 - Locking mechanism button in the rear lid
Code:
EX5 - Rearview mirror
EX11 - Exterior rearview mirror adjuster
EX23 - Center console switch module 1
Code:
F - Brake Light Switch
F1 - Oil pressure switch
F2 - Driver door contact switch
F3 - Front passenger door contact switch
F4 - Back-Up Light Switch
F8 - Kick down switch
F10 - Left rear door contact switch
F11 - Right rear door contact switch
F22 - Oil pressure switch
F34 - Brake Fluid Level Warning Switch
F47 - Brake pedal switch
F60 - Closed throttle position switch
F66 - Engine Coolant Level (ECL) Warning Switch
F124 - Rear lid lock/alarm/central locking switch
F125 - Multi-Function Transmission Range (TR) Switch
F131 - Left front central locking system actuator
F132 - Left rear central locking system actuator
F133 - Right front central locking system actuator
F134 - Right rear central locking system actuator
F138 - Airbag spiral spring/return spring with slip ring
F220 - Driver central locking lock unit
F221 - Front passenger central locking lock unit
F222 - Left rear central locking lock unit
F223 - Right rear central locking lock unit
F241 - Driver lock cylinder contact switch
F243 - Driver door central locking -SAFE- function actuator
F244 - Front passenger door central locking -SAFE- function actuator
F245 - Left rear door central locking -SAFE- function actuator
F246 - Right rear door central locking -SAFE- function actuator
F248 - Rear lid lock cylinder unlock button
F256 - Rear Lid Lock Unit
F265 - Map controlled engine cooling thermostat
F266 - Front Hood Switch
F332 - Rear lid closing assist/unlock stop switch
F333 - Rear lid closing assist/lock stop switch
F334 - Fuel filler detection switch
F344 - Left rear child safety lock contact switch
F345 - Right rear child safety lock contact switch
F378 - Reduced oil pressure switch
F390 - Driver side second row seat belt switch
F391 - Center second row seat belt switch
F392 - Passenger side second row seat belt switch
Code:
FX2 - Brake pedal switch
Code:
G - Fuel level sensor
G1 - Fuel gauge
G3 - Engine coolant temperature gauge
G5 - Tachometer
G6 - Transfer fuel pump
G8 - Oil Temperature Sensor
G17 - Ambient temperature sensor
G21 - Speedometer
G23 - Fuel pump
G28 - Engine speed sensor
G31 - Charge air pressure sensor
G32 - Engine coolant level sensor
G39 - Heated oxygen sensor
G40 - Camshaft position sensor
G42 - Intake air temperature sensor
G44 - Right rear ABS wheel speed sensor
G45 - Right front ABS wheel speed sensor
G46 - Left rear ABS wheel speed sensor
G47 - Left front ABS wheel speed sensor
G61 - Knock sensor 1
G62 - Engine coolant temperature sensor
G65 - High Pressure Sensor
G66 - Knock sensor 2
G69 - Throttle position sensor
G70 - Mass airflow sensor
G71 - Manifold absolute pressure sensor
G79 - Accelerator pedal position sensor
G81 - Fuel temperature sensor
G83 - Engine coolant temperature sensor on radiator outlet
G98 - EGR temperature sensor
G100 - Brake pedal position sensor
G107 - Sunlight photo sensor
G108 - Heated oxygen sensor 2
G128 - Front passenger occupant detection sensor
G130 - Oxygen sensor after three way catalytic converter
G135 - Defroster door motor position sensor
G150 - Left vent temperature sensor
G151 - Right vent temperature sensor
G169 - Fuel level sensor 2
G179 - Driver side airbag crash sensor
G180 - Front passenger side airbag crash sensor
G185 - Accelerator pedal position sensor 2
G186 - EPC throttle drive
G187 - EPC throttle drive angle sensor 1
G188 - EPC throttle drive angle sensor 2
G190 - Front airbag crash sensor
G192 - Footwell vent temperature sensor
G200 - Transverse acceleration sensor
G201 - Brake pressure sensor 1
G202 - Rotation rate sensor
G212 - EGR potentiometer
G220 - Left temperature door potentiometer/actuator
G221 - Right temperature door potentiometer/actuator
G229 - Driver seat rear height adjustment sensor
G235 - Exhaust gas temperature sensor 1
G236 - Bank 2 Exhaust Gas Temperature (EGT) Sensor 1
G237 - Fuel level sensor 3
G238 - Air quality sensor
G242 - Engine compartment temperature sensor 1
G246 - Mass airflow sensor 2
G247 - Fuel pressure sensor
G251 - Longitudinal acceleration sensor
G256 - Driver side rear side airbag crash sensor
G257 - Passenger side rear side airbag crash sensor
G266 - Oil level thermal sensor
G273 - Interior monitoring sensor
G294 - Brake booster pressure sensor
G295 - NOx sensor
G308 - Evaporator temperature sensor
G384 - Vehicle inclination sensor
G395 - A/C pressure/temperature sensor
G397 - Rain/light recognition sensor
G407 - Engine temperature sender
G415 - Driver exterior door handle touch sensor
G416 - Front passenger exterior door handle touch sensor
G417 - Left rear exterior door handle touch sensor
G418 - Right rear exterior door handle touch sensor
G447 - Charge air pressure sensor 2
G448 - Exhaust gas temperature sensor 2
G465 - Oxygen sensor in bank 1 center three way catalytic converter
G466 - EGR potentiometer 2
G450 - Exhaust pressure sensor 1
G451 - Exhaust pressure sensor 2
G466 - Exhaust gas recirculation position sensor 2
G476 - Clutch Position Sensor
G495 - Exhaust gas temperature sensor 3
G498 - Particulate filter intake temperature sensor 2
G499 - Turbocharger intake temperature sensor 2
G505 - Differential pressure sensor
G504 - Fuel additive empty sensor
G505 - Differential Pressure Sensor
G506 - Temperature sender before particulate filter
G507 - Turbocharger intake temperature sensor
G514 - Driver exterior rearview mirror horizontal position sensor
G515 - Driver exterior rearview mirror vertical position sensor
G516 - Front passenger exterior rearview mirror horizontal position sensor
G517 - Front passenger exterior rearview mirror vertical position sensor
G524 - Pressure differential sender 2
G525 - Rear lid -closed- sensor 1
G527 - Temperature sender after particulate filter
G526 - Rear lid -closed- sensor 2
G551 - Driver belt force limiter
G552 - Front passenger belt force limiter
G578 - Anti-theft alarm system sensor
G605 - Left front exterior door handle touch sensor
G606 - Right front exterior door handle touch sensor
G608 - Vacuum sender
G609 - Secondary air injection sensor 1
G624 - Fuel Pressure Sensor 2
G642 - Front air distribution door motor position sensor
G644 - Fresh air/recirculating air/back pressure door motor position sensor
G648 - Exhaust gas temperature sensor 4
G653 - Speed Sensor 1
G657 - Humidity sensor in fresh air intake duct
G664 - Oil temperature sensor 2
G678 - Cylinder 2 combustion chamber pressure sensor
G685 - Reducing agent temperature sensor
G686 - Reducing agent metering system pressure sensor
G687 - NOx sensor 2
G691 - Exhaust Gas Recirculation Pressure Sensor
G692 - Exhaust Gas Recirculation Pressure Sensor 2
G694 - Engine temperature control sensor
G697 - Reducing agent reservoir sensor
G712 - Drive motor temperature sensor
G713 - Drive motor rotor position sensor 1
G750 - Power rear lid opener sensor, in the rear bumper
G760 - Rear lid opener sensor 2, in the rear bumper
G784 - Particulate sensor
G788 - Temperature sensor after electro-drive drive motor
G805 - Refrigerant circuit pressure sensor
G810 - Charge air temperature sender before charge air cooler
G811 - Charge air temperature sender after charge air cooler
G836 - Brake pedal position sensor 2
Code:
GX1 - Fuel delivery unit
GX2 - Accelerator pedal module
GX3 - Throttle valve module
GX5 - Exhaust gas recirculation valve 1
GX6 - Exhaust gas recirculation valve 2
GX7 - Oxygen sensor 1 after catalytic converter
GX9 - Intake manifold sensor
GX10 - Oxygen sensor 1 before catalytic converter
GX11 - Oxygen sensor 2 before catalytic converter
GX26 - Charge air pressure sensor
Code:
H3 - Warning buzzer and tone
H12 - Alarm Horn
Code:
J4 - Dual Horn Relay
J9 - Rear Window Defogger Relay
J17 - Fuel pump relay
J32 - A/C relay
J53 - Starter relay
J104 - ABS Control Module
J126 - Fresh air blower control module
J136 - Seat and steering column adjustment control unit with memory
J151 - Coolant Circulation Pump Relay
J179 - Automatic glow time control module
J197 - Level control system control module
J217 - Transmission control module
J234 - Airbag control module
J245 - Power sunroof control module
J250 - Electronic damping control module
J255 - Climatronic control module
J271 - Motronic engine control module power supply relay
J285 - Instrument Cluster Control Module
J293 - Coolant fan control module
J299 - Secondary air injection pump relay
J317 - Terminal 30 power supply relay
J318 - Vacuum pump relay
J329 - Terminal 15 power supply relay
J338 - Throttle valve control module
J345 - Towing recognition control module
J364 - Auxiliary heater control module
J367 - Battery monitoring control module
J386 - Driver door control module
J387 - Front passenger door control module
J388 - Left Rear Door Control Module
J389 - Right Rear Door Control Module
J391 - Rear fresh air blower control module
J393 - Comfort system central control module
J400 - Wiper Motor Control Module
J404 - Terminal 15 load reduction relay
J428 - Distance regulation control module
J431 - Headlamp range control module
J445 - Fuel cooling pump relay
J446 - Parking aid control module
J492 - All wheel drive control module
J496 - Auxiliary engine coolant pump relay
J500 - Power steering control module
J502 - Tire pressure monitoring control module
J505 - Windshield defogger control module
J508 - Brake Light Disable Relay
J518 - Access/start authorization control module
J519 - Vehicle electrical system control module
J521 - Front passenger memory seat control module
J525 - Digital sound system control module
J527 - Steering Column Electronic Systems Control Module
J532 - Voltage stabilizer
J533 - Data bus on board diagnostic interface
J538 - Fuel Pump (FP) Control Module
J539 - Brake booster control module
J540 - Control unit for electromechanical parking brake
J581 - Parallel battery connection relay
J583 - NOx sensor control module
J605 - Rear lid control module
J608 - Special vehicle control unit
J623 - Engine control module
J624 - Engine control module 2
J643 - Fuel Primer Relay
J647 - Axle differential lock control module
J667 - Output module for left headlight
J668 - Output module for right headlight
J671 - Coolant fan control module 2
J680 - Power Supply Relay 1 (terminal 75)
J681 - Power Supply Relay 2 (terminal 15)
J682 - Power Supply Relay (terminal 50)
J685 - Front information display control head
J689 - Terminal 30 power supply relay 2
J695 - Relay 2 for starter
J701 - Power supply relay 1
J703 - Glow time control module 2
J710 - Power supply relay 2
J715 - Fuel pump pre-run relay
J724 - Turbocharger control module 1
J725 - Turbocharger control module 2
J743 - Direct Shift Gearbox (DSG) Mechatronic
J745 - Cornering lamp and headlamp range control module
J749 - Auxiliary Heater Fuel Pump Relay
J764 - Electronic steering column lock control module
J769 - Lane change assist control unit
J772 - Rearview camera system control module
J773 - Convenience system central control unit 2
J774 - Heated Rear Seats Control Module
J791 - Parallel parking assistance control module
J792 - Active steering control module
J794 - Information electronics control module 1
J819 - Center operating unit for dash panel
J829 - Information electronics control module 2
J840 - Battery regulation control module
J842 - A/C compressor control module
J844 - Automatic high beam assist control module
J842 - A/C compressor control module
J848 - High voltage heater (PTC) control module
J849 - Sensor electronics control module
J850 - Distance regulation control module 2
J851 - Image processing control module
J852 - Camera control module
J853 - Night vision system control module
J854 - Left front seat belt tensioner control module
J855 - Right front seat belt tensioner control module
J856 - Navigation system control module
J869 - Structure borne sound control module
J872 - Front passenger multicontour seat control module
J873 - Driver multicontour seat control module
J874 - Passenger side rear multicontour seat control module
J875 - Driver side rear multicontour seat control module
J876 - Driver side rear seat adjustment control module
J877 - Passenger side rear seat adjustment control module
J880 - Reducing agent metering system control module
J881 - NOx sensor control module 2
J898 - Windshield projection head up display control module
J928 - Peripheral camera control module
J931 - Subframe mount control module
J963 - Reducing agent metering system relay
J965 - Access/start system interface
J984 - Mobile communication 2-way signal amplifier
J1032 - Cooling fan control unit
J1050 - High voltage battery charger control module
Code:
JX1 - Electric drive power and control electronics (this guy's numbering doesn't play well with others)
Code:
K2 - Generator indicator lamp
K3 - Oil pressure indicator lamp
K6 - Emergency Flasher Indicator Lamp
K19 - Seat belt indicator lamp
K28 - Engine coolant level/temperature indicator lamp
K31 - Cruise control indicator lamp
K47 - ABS indicator lamp
K83 - Malfunction indicator lamp
K118 - Brake system indicator lamp
K105 - Low fuel level indicator lamp
K132 - Electronic power control malfunction indicator lamp
K133 - Central locking -SAFE- indicator lamp
K139 - Parking brake indicator lamp
K145 - Front passenger airbag -disabled- indicator lamp
K155 - ASR/ESP indicator lamp
K213 - Electromechanical parking brake indicator lamp
K220 - Tire pressure monitoring display indicator lamp
K236 - Child safety lock -activated- indicator lamp
K237 - -AUTO HOLD- indicator lamp
K268 - Left front footwell lamp
K269 - Right front footwell lamp
K280 - Driving profile selection indicator lamp
Code:
KX2 - Instrument cluster
Code:
L9 - Headlamp Switch Illumination
L22 - Left Front Fog Lamp
L23 - Right Front Fog Lamp
L76 - Push button illumination bulb
L78 - Mirror adjustment switch illumination bulb
L131 - Driver exterior rearview mirror turn signal bulb
L132 - Front passenger exterior rearview mirror turn signal bulb
L176 - Left LED Parking Lamp/DRL Module
L177 - Right LED Parking Lamp/DRL Module
L219 - Driver side interior door handle illumination lamp
L220 - Passenger side interior door handle illumination lamp
Code:
M1 - Left Parking Lamp
M3 - Right Parking Lamp
M5 - Left Front Turn Signal Lamp
M6 - Left Rear Turn Signal Lamp
M7 - Right Front Turn Signal Lamp
M8 - Right Rear Turn Signal Lamp
M9 - Left Brake Lamp
M10 - Right Brake Lamp
M16 - Left Back-Up Lamp
M17 - Right Back-Up Lamp
M25 - High-mount Brake Light
M29 - Left Low Beam Headlamp
M30 - Left High Beam Headlamp
M31 - Right Low Beam Headlamp
M32 - Right High Beam Headlamp
M33 - Left Front Side Marker Lamp
M34 - Right Front Side Marker Lamp
Code:
N18 - EGR vacuum regulator solenoid valve
N30 - Cylinder 1 fuel injector
N31 - Cylinder 2 fuel injector
N32 - Cylinder 3 fuel injector
N33 - Cylinder 4 fuel injector
N70 - Ignition coil 1 with power output stage
N79 - Positive Crankcase Ventilation (PCV) Heating Element
N80 - EVAP canister purge regulator valve 1
N83 - Cylinder 5 fuel injector
N84 - Cylinder 6 Fuel Injector
N85 - Cylinder 7 fuel injector
N86 - Cylinder 8 fuel injector
N99 - Right front ABS inlet valve
N100 - Right front ABS outlet valve
N101 - Left front ABS inlet valve
N102 - Left front ABS outlet valve
N110 - Shift lock solenoid
N112 - Secondary air injection solenoid valve
N127 - Ignition coil 2 with power output stage
N131 - Front passenger airbag igniter 1
N133 - Right rear ABS inlet valve
N134 - Left rear ABS inlet valve
N135 - Right rear ABS outlet valve
N136 - Left rear ABS outlet valve
N144 - Left electrohydraulic engine mount solenoid valve
N145 - Right electrohydraulic engine mount solenoid valve
N153 - Driver seat belt tensioner igniter 1
N154 - Front passenger seat belt tensioner igniter 1
N180 - Changeover valve
N196 - Driver side rear seat belt tensioner igniter
N197 - Passenger side rear seat belt tensioner igniter
N199 - Driver thorax airbag igniter
N200 - Front passenger thorax airbag igniter
N201 - Driver side rear thorax airbag igniter
N202 - Passenger side rear thorax airbag igniter
N205 - Camshaft adjustment valve 1
N213 - Valve 2 for EGR
N225 - Driving dynamics regulation switch valve 1
N226 - Driving dynamics regulation switch valve 2
N227 - Driving dynamics regulation high pressure switch valve 1
N228 - Driving dynamics regulation high pressure switch valve 2
N240 - Cylinder 1 pump/injector valve
N241 - Cylinder 2 pump/injector valve
N242 - Cylinder 3 pump/injector valve
N243 - Cylinder 4 pump/injector valve
N244 - Cylinder 5 pump/injector valve
N245 - Cylinder 6 pump/injector valve
N251 - Driver head curtain airbag igniter
N252 - Front passenger head curtain airbag igniter
N253 - Battery interrupt igniter
N276 - Fuel pressure regulating valve
N280 - A/C compressor regulator valve
N290 - Fuel metering valve
N291 - Ignition coil 3 with power output stage
N292 - Ignition coil 4 with power output stage
N295 - Driver knee airbag igniter
N299 - Cylinder 9 fuel injector
N300 - Cylinder 10 fuel injector
N301 - Cylinder 11 fuel injector
N302 - Cylinder 12 fuel injector
N303 - Cylinder 7 pump/injector valve
N304 - Cylinder 8 pump/injector valve
N305 - Cylinder 9 pump/injector valve
N306 - Cylinder 10 pump/injector valve
N323 - Ignition coil 5 with power output stage
N345 - EGR cooler switch-over valve
N381 - EGR cooler switch-over valve 2
N402 - Fuel Metering Valve 2
N428 - Oil pressure regulation valve
N449 - Clutch valve 1
N474 - Reducing agent injector
N483 - Positive Crankcase Ventilation (PCV) Heating Element 2
N484 - Fuel Pressure Regulator Valve 2
N489 - Cylinder head coolant valve
N509 - Transmission fluid cooling valve
N649 - Switch valve for mechanical coolant pump
N687 - Radiator bypass switch-over valve
Code:
NX6 - Brake booster
Code:
P - Spark plug connectors
Code:
Q - Spark plugs
Q10 - Glow plug 1
Q11 - Glow plug 2
Q12 - Glow plug 3
Q13 - Glow plug 4
Q14 - Glow plug 5
Q15 - Glow plug 6
Q16 - Glow plug 7
Q17 - Glow plug 8
Q18 - Glow plug 9
Q19 - Glow plug 10
Q20 - Glow Plug 11
Q21 - Glow Plug 12
Q35 - Glow plug 1 with pressure sensor
Q36 - Glow plug 2 with pressure sensor
Code:
R - Radio
R78 - TV tuner
R134 - Driver access/start system antenna
R135 - Front passenger access/start system antenna
R136 - Access/start system antenna in rear bumper
R137 - Access/start system antenna in luggage compartment
R138 - Access/start system antenna 1 in vehicle interior
R149 - Auxiliary engine coolant heater radio frequency receiver
R152 - Bluetooth antenna
R161 - DVD changer
R171 - Digital TV tuner
R205 - GSM antenna
R214 - Structure-Borne Sound Actuator
R242 - Driver assistance systems front camera
R265 - Storage compartment with cell phone interface
Code:
T - This spot left blank because T just means terminal and the same thing (like T14) just means a 14 pin connector, it doesn't tell you what it goes to.
Code:
S - This spot left blank because S just means Fuse and SA1 means a different thing in different cars. Fuse locations are a subject for a different how-to.
Code:
U1 - Cigarette Lighter
U5 - 12 V socket
U6 - Battery jump start terminal
U11 - Interior socket, 230 V, 110 V
U31 - Diagnostic connection
Code:
UX4 - High voltage battery charging socket 1
Code:
V1 - Sunroof Motor
V2 - Fresh air blower
V5 - Windshield Washer Pump
V7 - Coolant fan
V14 - Left window regulator motor
V15 - Right window regulator motor
V17 - Driver mirror adjustment motor 2
V22 - Vacuum pump
V25 - Front passenger side mirror adjustment motor 2
V26 - Left rear window regulator motor
V26 - Motor for Window Regulator, rear left
V27 - Right rear window regulator motor
V36 - Water pump
V50 - Coolant Pump
V50 - Coolant Pump (without aux heat only)
V51 - After-Run Coolant Pump
V53 - Rear lid central locking system motor
V55 - Circulation pump
V56 - Driver door central locking system motor
V57 - Front passenger door central locking system motor
V64 - ABS hydraulic pump
V87 - Left Rear Seat Fore/Aft Adjusting Motor
V88 - Right Rear Seat Fore/Aft Adjusting Motor
V101 - Secondary air injection pump motor
V107 - Defroster door motor
V107 - Defroster Flap Motor
V108 - Left Footwell Flap Motor
V109 - Right Footwell Flap Motor
V121 - Driver exterior rearview mirror folding motor
V122 - Front passenger exterior rearview mirror folding motor
V123 - Motor for Steering Column Adjustment, Vertical
V124 - Motor for Steering Column Adjustment, Axial
V135 - Additive particle filter pump
V139 - Rear Lid Release Motor
V139 - Motor to Unlock rear Lid
V141 - Electro-drive drive motor
V144 - Leak detection pump
V144 - Leak Detection Pump (LDP)
V149 - Driver mirror adjustment motor
V150 - Front passenger mirror adjustment motor
V155 - Fuel Tank Lid Unlock Motor
V157 - Intake flap motor
V158 - Left temperature door motor
V159 - Right temperature door motor
V161 - Driver door central locking -SAFE- motor
V162 - Front passenger central locking -SAFE- motor
V166 - Fuel cooler pump
V177 - Coolant fan 2
V189 - Secondary Air Injection (AIR) Pump Motor 2
V195 - Right Rear Footwell/Defrost Flap Motor
V196 - Left Rear Footwell/Defrost Flap Motor
V197 - Front Cold Air Flap Motor
V198 - Front Warm Air Flap Motor
V199 - Right Front Defrost/Upper Body Shut-Off Flap Motor
V200 - Left Front Defrost/Upper Body Flap Shut-Off Motor
V201 - Right Rear Center Console Warm Air Flap Motor
V202 - Left Rear Center Console Warm Air Flap Motor
V203 - Right Rear Center Console Cold Air Flap Motor
V204 - Left Rear Center Console Cold Air Flap Motor
V212 - Left B-Pillar/Footwell Shut-Off Flap Motor
V214 - Left rear central locking -lock- motor
V215 - Right rear central locking -lock- motor
V216 - Left Windshield Wiper Motor
V217 - Right Windshield Wiper Motor
V227 - Left Rear Seat Tilt Adjustment Motor
V228 - Right Rear Seat Tilt Adjustment Motor
V241 - Rear Lid Hydraulic Motor
V254 - Rear Lid Opening Motor
V260 - Sunroof Blind Motor
V275 - Intake flap motor 2
V278 - Door Closing Assist Motor
V280 - Turbocharger 1 control motor
V281 - Turbocharger 2 servo motor
V282 - Left parking brake motor
V283 - Right parking brake motor
V338 - EGR motor
V339 - EGR motor 2
V400 - Exhaust Gas Recirculation (EGR) Cooler Pump
V403 - Circulation pump 2
V404 - Circulation pump 3
V409 - Left side window defroster door motor
V425 - Fresh air/recirculating air/back pressure door motor
V426 - Front air distribution door motor
V437 - Reducing agent pump
V470 - Electrical A/C compressor
V509 - Coolant pump in front of high voltage heater (PTC)
V544 - Radiator shutter motor
V545 - Motor in recuperation brake pressure reservoir
Code:
VX4 - Driver exterior rearview mirror
VX5 - Front passenger exterior rearview mirror
VX21 - Driver door lock unit
VX22 - Front passenger door lock unit
VX23 - Left rear door lock unit
VX24 - Right rear door lock unit
VX25 - Rear lid lock unit
VX54 - Three-phrase current drive
VX57 - Coolant fan
VX70 - Brake system pressure reservoir
Code:
W1 - Front Interior Light
W3 - Luggage Compartment Light
W30 - Driver door warning lamp
W31 - Left front entry lamp
W32 - Right front entry lamp
W33 - Left rear entry lamp
W34 - Right rear entry lamp
W36 - Front passenger door warning lamp
W37 - Left rear door warning lamp
W38 - Right rear door warning lamp
W52 - Driver entry lamp in exterior rearview mirror
W53 - Front passenger entry lamp in exterior rearview mirror
W67 - Fiber optic cable for left front sill panel ambient lighting
W68 - Fiber optic cable for right front sill panel ambient lighting
W69 - Fiber optic cable for left rear sill panel ambient lighting
W70 - Fiber optic cable for right rear sill panel ambient lighting
W74 - Fiber optic cable for front center console ambient lighting
W75 - Fiber optic cable for rear center console ambient lighting
W86 - Driver side door ambient lighting lamp
W87 - Passenger side door ambient lighting lamp
W97 - Driver side door ambient illumination lamp 2
W98 - Front passenger side door ambient illumination lamp 2
Code:
WX1 - Front interior lamp
Code:
X - License Plate Light
Code:
Y7 - Automatic anti-dazzle interior mirror
Y24 - Display unit in instrument cluster
Y26 - Selector lever transmission range position display unit
Code:
Z4 - Heated driver exterior rearview mirror
Z5 - Heated front passenger exterior rearview mirror
Z19 - Oxygen sensor heater
Z20 - Left Washer Nozzle Heater
Z21 - Right Washer Nozzle Heater
Z28 - Oxygen sensor 2 heater
Z29 - Oxygen sensor heater 1 after catalytic converter
Z102 - Reducing agent tank heater (heating circuit 1)
Z104 - Reducing agent line heater (heating circuit 2)
Z113 - Window defogger for front sensor system
Z115 - High voltage heater (PTC)
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