Control Unit
Description and Operation
Diagrams- Diagram Information and Instructions
- Diagram Legend
- 1/1 Battery
- 2/17 Horn Relay
- 2/22 Relay, Climate Control System
- 2/23 Fuel Pump Relay
- 2/29 Relay, Extended D1 Feed
- 2/30 X Feed Overload Relay
- 2/31 15-Feed Overload Relay
- 2/32 Engine Management System Main Relay
- 2/33 Relay, Fuel System
- 2/34 Fog Light Relay, Front
- 2/35 Starter Motor Relay
- 2/49 Relay, Rear Fog Light
- 2/52 Relay, 15I Feed, Rear
- 2/59 Unlocking Relay, Fuel Filler Flap
- 2/61 Relay, Position/Parking Light
- 2/62 Relay, Low Beam/Bi-Xenon
- 2/63 High Beam Relay
- 2/64 Auxiliary Light (accessory) Relay
- 2/67 Trunk Lid Opening Relay
- 2/75 Rear Adjustable Head Restraint Relay
- 2/79 Brake Light Relay
- 2/80 Reversing Light Relay
- 2/82 Relay, Heated Rear Window
- 2/83 Trailer Fog Light Relay
- 2/90 Relay, Windshield Wiper, Low/High Speed
- 2/91 Relay, Intermittent Windshield Wiper
- 2/92 Relay, Windshield Washer Motor
- 2/101 Relay For Extended D2 Feed, Automatic Transmission
- 2/112 Unlocking Relay, Left-hand Rear
- 2/114 Unlocking Relay, Right-Hand Rear
- 2/115 Relay, Deadlock, Rear Doors
- 2/116 Rear Power Window Up Relay
- 2/117 Right Rear Power Window Up Relay
- 2/118 Rear Power Window Down Relay
- 2/119 Right Rear Power Window Down Relay
- 2/120 Relay - Power Windows, Power Child Lock Rear Door
- 2/138-139 Deadlock Relay, LH & RH Rear Door
- 2/152 Relay, Daytime Running Lights
- 2/158 Locking Relay, Rear Doors, Filler Flap
- 2/174 Relay, Suspension Module (SUM)
- 3/1 Ignition Switch
- 3/4 Cruise Control Switch SWS
- 3/6 Hazard Warning Flasher Switch
- 3/8 Heated Rear Window/door Mirror Switch
- 3/9 Brake Light Contact
- 3/10 Reversing Light Contact
- 3/25 Power Sunroof Switch
- 3/26 Power Driver's Seat Module
- 3/27 Power Passenger Seat Module
- 3/35 Trunk Handle Switch
- 3/37 Horn Contact
- 3/47 Parking Brake Contact
- 3/53 Recirculation Switch
- 3/56 Fan Switch
- 3/59 Control, Beam Adjustment
- 3/60 Auxiliary Light Switch
- 3/62 Hood Alarm Contact
- 3/71 Gear Selector Contacts
- 3/73 Power Child Lock (PCL) Switch
- 3/74-77 LH/RH Front & Rear Door Lock Unit
- 3/78 Trunk Lid Lock Unit
- 3/80 Switch, Left-Hand Central Lock
- 3/82 Switch, Right-hand Central Lock
- 3/85-86 RL & RR Door Power Window Switch
- 3/91 Switch, Left-Hand Heated Seat
- 3/92 Switch, Right-Hand Heated Seat
- 3/93-94 Left & Right Seatbelt Latch Switch
- 3/95 Spin Control Switch
- 3/111 Light Switch Module (LSM)
- 3/112 Climate Control Module (CCM)
- 3/113 Rear Adjustable Head Restraint Relay
- 3/117 Dome Light Control Module
- 3/118 Climate Control Switch
- 3/119 Climate Control Switch, Auto
- 3/121 Climate Control Switch, Defroster
- 3/122 Climate Control Switch, Ventilation
- 3/123 Climate Control Switch, Floor
- 3/124-125 Temperature Switch, LH & RH Side
- 3/126 Driver/Passenger Door Module (DDM/PDM)
- 3/127 Passenger/Driver Door Module (PDM/DDM)
- 3/130 Steering Wheel Module (SWM)
- 3/131 Switch, Audio/mobile Phone
- 3/135 RTI Switch
- 3/155 Automatic Transmission Program Selector
- 3/156 Gear Selector Module (GSM)
- 3/171 Switch, Retractable Door Mirrors
- 3/173 Switch, Trunk Lid Private Lock
- 3/174 Switch, Reduced Alarm
- 3/183 Switch, Max Defrost
- 4/9 Control Module, Supplemental Restraint System (SRS)
- 4/83 Fuel Pump Control Module
- 4/84 Suspension Module (SUM)
- 4/108 Parking Assistance Module
- 4/201-202 LH & RH Seat Heater Control Module
- 5/1 Driver Information Module (DIM)
- 6/1 Windshield Wiper Motor
- 6/2 Windshield Washer Pump
- 6/3-4 RH & LH Headlight Wiper Motor
- 6/15 Sunroof Motor
- 6/16 Driver Seat Motor, Backrest Angle
- 6/17 Driver Seat Motor, Up/Down Front Edge
- 6/18 Driver Seat Motor, Up/Down Rear Edge
- 6/19 Driver Seat Motor, Forward/Backward
- 6/20 Passenger Seat Motor, Forward/Backward
- 6/25 Starter Motor
- 6/26 Generator
- 6/28 Motor, Passenger Compartment Fan
- 6/29 Motor, Electric Cooling Fan
- 6/33 Fuel Pump
- 6/37 Lock Motor, Fuel Filler Flap
- 6/38-39 LH & RH Headlight Level Adjustment Motor
- 6/44 Cooling Fan, Electrics Box, Engine Compartment
- 6/48 Damper Motor, Recirculation
- 6/58-60 Motor, FL & FR Power Window
- 6/62 Left-hand Power Door Mirror
- 6/63 Right-hand Power Door Mirror
- 6/64 Passenger Seat Motor, Backrest Angle
- 6/65 Passenger Seat Motor, Up/down Front Edge
- 6/66 Passenger Seat Motor, Up/down Rear Edge
- 6/69 Damper Motor, Ventilation/Floor/Defroster
- 6/92-93 Motor, RL & RR Power Window
- 6/95 Damper Motor, Temperature, Left-hand Side
- 6/96 Damper Motor, Temperature, Right-hand Side
- 6/102 Damper Motor, Defroster
- 6/103 Damper Motor, Floor/ventilation
- 6/114 Vacuum Pump
- 6/120 Engine Throttle Body
- 7/4 Brake Fluid Level Sensor
- 7/5 Washer Fluid Level Sensor
- 7/6 Oil Pressure Sensor
- 7/8 Pressure Sensor, Climate Control System
- 7/10 Interior Temperature Sensor
- 7/11 Outside Temperature Sensor
- 7/12 Sun Sensor, Indication Alarm And Electronic Immobilizer
- 7/15 Heated Oxygen Sensor
- 7/16 Coolant Temperature Sensor
- 7/17 Mass Airflow Sensor MAF
- 7/23-24 Rear & Front knock Sensor
- 7/25 Impulse Sensor
- 7/31-32 LH & RH Front ABS Sensor
- 7/35 Oil Level Sensor
- 7/41 Temperature Sensor, Evaporator
- 7/51 Accelerator Pedal Sensor
- 7/56-57 LH & RH Rear ABS Sensor
- 7/61 Input Speed Sensor - 4T65EV & AW 55-50
- 7/62 Output Speed Sensor - 4T65EV & AW 55-50
- 7/73 Coolant Level Sensor
- 7/74 Oil Temperature Sensor - 4T65EV & AW 55-50
- 7/77 Temperature Sensor, Intake Air
- 7/81 Pressure Sensor, Intake Manifold
- 7/82 Heated Oxygen Sensor, Diagnosis 1
- 7/87-88 Acceleration Sensor, Four-C, FL & FR
- 7/89 Acceleration Sensor, Four-C, Rear Left
- 7/91 Steering Angle Sensor
- 7/100 Inclination Sensor Module (ISM)
- 7/103 Heated Oxygen Sensor 3
- 7/104 Heated Oxygen Sensor 4 (Diagnostic Probe)
- 7/105 Outside Temperature Sensor, Engine Control Module
- 7/108-109 LH & RH Rear Side Impact Sensor
- 7/110-111 LH & RH Seat Temperature Sensor
- 7/115-116 LH & RH Front Side Impact Sensor
- 7/118-119 Acceleration Sensor, Shock Absorber, Four-C, RR & FR
- 7/120 Rear Left Angle Sensor
- 7/121 Rear Right Angle Sensor, Four-C/Bi-Xenon
- 7/122 Mass Movement Sensor (MMS)
- 7/123 Clutch Pedal Sensor
- 7/124 Brake Pedal Sensor
- 7/129 Brake Pressure Sensor 2
- 7/131-134 Parking Assistance Sensor 1, 2, 3, 4
- 7/139 Brake Pressure Sensor 1
- 7/149 Rain Sensor
- 7/159 Air Quality Sensor
- 7/164 Sensor Module DSTC/Pressure Sensor
- 7/172 Position Sensor, Camshaft, Intake Side
- 7/173 Sensor, Camshaft
- 8/3 Electromagnetic Clutch, Climate Control System
- 8/6-11 Injectors
- 8/17 EGR Valve
- 8/18 EVAP Valve
- 8/19 Solenoid, Variable Valve Timing Outlet
- 8/20-21 Shock Absorber, Four-C, FL & FR
- 8/22-23 Shock Absorber, Four-C, RL & RR
- 8/28 Turbocharger Control Valve
- 8/30 Driver Side Airbag Igniter
- 8/31-32 Passenger Side Airbag Igniter & Stage 2 Igniter
- 8/33-34 FL & FR Belt Tensioner Igniter
- 8/36 Shift Lock Solenoid
- 8/37 Automatic Transmission - AW 55-50
- 8/37 Automatic Transmission - 4T65EV
- 8/38-41 Shift Solenoid 1, 2, Lock-up & Pressure Solenoid
- 8/46 DSTC Activation Module
- 8/51-52 FL & FR Side Airbag Igniter
- 8/55-56 RL & RR Belt Tensioner Igniter
- 8/59-60 RL & RR Head Restraint Solenoid
- 8/61 Driver Side Airbag Igniter Step 2
- 8/62 Belt Tensioner Igniter, Center Rear Seat
- 8/64 Solenoid Valve, Engine Mounting
- 8/66-67 LH & RH Inflatable Curtain Igniter
- 8/71-74 Throttle Solenoid, Shift Solenoid 3, 4, 5
- 8/76 Gas Tank Valve
- 8/78 Oil Pressure Sensor
- 8/81 Solenoid, Variable Valve Timing Outlet
- 8/84 Switch, Vacuum Pump
- 9/1 Front 12V Outlet
- 9/2 Heated Rear Window
- 9/12-13 Left & Right Seat Heater
- 9/16-17 LH & RH Backrest Heating Element
- 9/18-19 LH & RH Seat Heating Element
- 9/25 Rear 12V Outlet
- 9/32 PTC Resistor - Air Preheating
- 10/1-2 LH & RH Front Lamp Housing
- 10/3 License Plate Lighting
- 10/5-6 FL & FR Fog Light
- 10/11-12 FL & FR Position/Parking Light
- 10/13-14 FL & FR Direction Indicator
- 10/15-16 Indicator, FL & FR Door
- 10/17-18 Lamp Housing, RH & LH Tail Light
- 10/19 Auxiliary Brake Light
- 10/29 Glove Compartment Lighting
- 10/42 Rear Right Position/Parking Light
- 10/43 Right-hand Brake Light
- 10/44-45 Right-Hand Tail Light Lamp & Lamp 2
- 10/46 Fog Light, Right Rear
- 10/47 Rear Right Direction Indicator
- 10/48 Right-hand Reversing Light
- 10/49 Rear Left Position/Parking Light
- 10/50 Left-Hand Brake Light
- 10/51-52 Left-hand Tail Light Lamp & Lamp 2
- 10/53 Fog Light, Left Rear
- 10/54 Rear Left Direction Indicator
- 10/55 Left-hand Reversing Light
- 10/64 Right-Hand High Beam
- 10/65, 69 Auxiliary Light, FR & FL
- 10/66 Right-Hand Low Beam
- 10/68 Left-Hand High Beam
- 10/70 Left-hand Low Beam
- 10/71 Front Left Side Marker Light
- 10/72 Front Ashtray Lighting
- 10/73 Front Right Side Marker Light
- 10/114-115 LH & RH Vanity Mirror Lighting
- 10/122 Left-Hand Rear Courtesy Lighting
- 10/123 Right-Hand Rear Courtesy Lighting
- 10/125 Left-Hand Front Courtesy Lighting
- 10/126 Right-Hand Front Courtesy Lighting
- 10/127-128 Lighting, Cargo Compartment, LH & RH Side
- 10/129-130 FL & FR Position/Parking Light
- 10/148 Left-Hand Rear-View Mirror Lighting
- 10/149 Right-Hand Rear View Mirror Lighting
- 10/150 Rear Reading Light
- 10/218 Indicator Light, Remote Start
- 11A-B/no. Fuses In Engine Compartment
- 11A/x Main Fuses In Engine Compartment Fuse Box
- 11B/x Fuses In Engine Compartment Fuse Box
- 11C/no. Fuses In Passenger Compartment
- 11C/x Fuses In Passenger Compartment Fuse Box
- 11D-E/no. Fuses In Cargo Compartment
- 11D/x Fuses In Cargo Compartment Fuse Box
- 11E/x Main Fuses At Battery
- 15/30 Connecting Rail To 15/31
- 15/31 Engine Compartment Distribution Box
- 16/1 Audio Module (AUM)
- 16/2 Amplifier
- 16/3-4 RH & LH Front Door Speaker
- 16/5-6 RH & LH Rear Door Speaker
- 16/9 Window Antenna
- 16/10-11 Horn 1, 2
- 16/15 CD changer
- 16/16 Window Antenna Amplifier, Left
- 16/17-18 LH & RH Speaker, Rear Shelf
- 16/26 Central Dashboard Speaker
- 16/35 Siren Control Module (SCM)
- 16/36 TV Receiver
- 16/45 Road Traffic Information (RTI)
- 16/46 Multimedia Display
- 16/47 GPS Antenna RTI
- 16/55-56 LH & RH Front Tweeter
- 16/60 Phone Module (PHM)
- 16/62 Hand Unit, Mobile Phone
- 16/64 Antenna, Mobile Telephone
- 16/65 Antenna Ring/Ignition Switch Lighting
- 16/67 Amplifier Antenna, Bumper
- 16/68 Antenna, Bumper
- 16/71 Window Antenna Amplifier, Right
- 16/77 Microphone, Mobile Telephone
- 16/78 Speaker, Mobile Telephone
- 16/93 Control Module, Cellular Telephone Handsfree
- 16/126 Holder, Cellular Telephone Handsfree
- 16/127 Microphone, Cellular Telephone Handsfree
- 17/13 Data Link Connector
- 17/17 Jump Start Connection
- 17/19 12V Outlet, Cargo Compartment
- 17/38 Socket, 7-pin, Towing Bracket Wiring
- 17/39 Socket, 13-pin, Towing Bracket Wiring
- 18/4 Contact Reel
- 20/3-8 Spark Plug and Ignition Coil
- 20/16 Capacitor
- 20/27 Shunt, Low Beam CEM
- 20/28 Shunt, Position/Parking Light/Tail Light REM
- 20/29 Shunt, Fog Light REM
- 20/31 Shunt, Brake Light REM
- 20/32 Shunt, Indicator CEM, Left
- 20/33 Shunt, Position/Parking Light/Tail Light REM
- 20/34 Shunt, Indicator CEM, Right
- 31/1-102 Ground Connection
- 53/### Junction Points
- 54/1-124 Connector
- How to Use the Wiring Diagrams
- List of Components By Component Number
- Wire Color Code and Other Abbreviations
- Relays, General
- Diagnostic Aids
- Electrical Diagrams