| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | M | Ground Oxygen sensor heater | Heated oxygen sensor I in front of catalytic converter |
| | | |
| 2 | E | Back-up light signal | Back up light switch |
| | | |
| 3 | | Not used | |
| | | |
| 4 | | Not used | |
| | | |
| 5 | M | Heated oxygen sensor ground, Shield Oxygen sensors | Heated oxygen sensor I in front of catalytic converter, Heated oxygen sensor I behind catalytic converter, Heated oxygen sensor II in front of catalytic converter, Heated oxygen sensor II behind catalytic converter |
| | | |
| 6 | | Not used | |
| | | |
| 7 | M | Heated oxygen sensor ground | Heated oxygen sensor I behind catalytic converter |
| | | |
| 8 | | Not used | |
| | | |
| 9 | | Not used | |
| | | |
| 10 | E | Signal Catalytic converter temperature sensor | Catalytic converter temperature sensor |
| | | |
| 11 | | Not used | |
| | | |
| 12 | A | Temperature signal, E-box fan | E-Box fan |
| | | |
| 13 | M | Heated oxygen sensor ground | Heated oxygen sensor II in front of catalytic converter |
| | | |
| 14 | E | Heated oxygen sensor signal | Heated oxygen sensor I in front of catalytic converter |
| | | |
| 15 | E | Heated oxygen sensor signal | Heated oxygen sensor II in front of catalytic converter |
| | | |
| 16 | E | Heated oxygen sensor signal | Heated oxygen sensor I behind catalytic converter |
| | | |
| 17 | | Not used | |
| | | |
| 18 | E | Heated oxygen sensor signal | Heated oxygen sensor II behind catalytic converter |
| | | |
| 19 | M | Heated oxygen sensor ground | Heated oxygen sensor II behind catalytic converter |
| | | |
| 20 | E | Signal Switch, gear recognition | Switch, gear recognition |
| | | |
| 21 | | Not used | |
| | | |
| 22 | | Not used | |
| | | |
| 23 | A | Terminal 85 control | Engine control module relay |
| | | |
| 24 | | Not used | |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | E | Hot-film mass air flow sensor signal | Hot-film mass air flow sensor I |
| | | |
| 2 | E | Camshaft position sensor signal | Camshaft sensor I exhaust |
| | | |
| 3 | A | Activation Oil pump 2 | Oil pump 2 |
| | | |
| 4 | A | Activation VANOS valve, cylinders 1-4 | VANOS inlet, cylinder 1-4, advance |
| | | |
| 5 | E | Camshaft position sensor signal | Camshaft sensor I inlet |
| | | |
| 6 | E | Camshaft position sensor signal | Camshaft sensor II exhaust |
| | | |
| 7 | A | Supply: Hot-film mass air flow sensor I, Hot-film mass air flow sensor II, throttle potentiometer 1 | Hot-film mass air flow sensor I Hot-film mass air flow sensor II Throttle potentiometer 1 |
| | | |
| 8 | E | Signal Crankshaft position/RPM sensor | Crankshaft position/RPM sensor |
| | | |
| 9 | E | Camshaft position sensor signal | Camshaft sensor II inlet |
| | | |
| 10 | E | Throttle position sensor signal | Throttle potentiometer 2 |
| | | |
| 11 | A | Activation Oil pump 1 | Oil pump 1 |
| | | |
| 12 | E | Voltage signal, terminal 30h | Starter |
| | | |
| 13 | E | Generator D+ (terminal 61) signal | Generator |
| | | |
| 14 | A | Throttle position sensor voltage supply | Throttle potentiometer 2 |
| | | |
| 15 | | Not used | |
| | | |
| 16 | | Not used | |
| | | |
| 17 | M | Ground Hot-film mass air flow sensor I Hot-film mass air flow sensor II | Hot-film mass air flow sensor I Hot-film mass air flow sensor II |
| | | |
| 18 | E | Hot-film mass air flow sensor signal | Hot-film mass air flow sensor II |
| | | |
| 19 | | Not used | |
| | | |
| 20 | M | Ground Throttle potentiometer 1, Throttle potentiometer 2 | Throttle potentiometer 1 Throttle potentiometer 2 |
| | | |
| 21 | E | Crankshaft position sensor ground | Crankshaft position/RPM sensor |
| | | |
| 22 | E | Signal Intake air temperature | Hot-film mass air flow sensor II |
| | | |
| 23 | E | Throttle position sensor signal | Throttle potentiometer 1 |
| | | |
| 24 | E | NTC signal, water | Dual temperature sensor |
| | | |
| 25 | M | Ground | Ground splice |
| | | |
| 26 | | Not used | |
| | | |
| 27 | A | Negative activation Cyl. 7 fuel injection valve | Cyl. 7 fuel injection valve |
| | | |
| 28 | A | Negative activation Cyl. 8 fuel injection valve | Cyl. 8 fuel injection valve |
| | | |
| 29 | E | Knock sensor signal | Knock sensor Cylinders 1 and 2 |
| | | |
| 30 | E | Knock sensor signal | Knock sensor Cylinders 7 and 8 |
| | | |
| 31 | E | Knock sensor signal | Knock sensor Cylinders 3 and 4 |
| | | |
| 32 | E | Knock sensor signal | Knock sensor Cylinders 5 and 6 |
| | | |
| 33 | A | Negative activation Cyl. 1 fuel injection valve | Cyl. 1 fuel injection valve |
| | | |
| 34 | A | Negative activation Cyl. 2 fuel injection valve | Cyl. 2 fuel injection valve |
| | | |
| 35 | A | Negative activation Cyl. 3 fuel injection valve | Cyl. 3 fuel injection valve |
| | | |
| 36 | A | Negative activation Cyl. 4 fuel injection valve | Cyl. 4 fuel injection valve |
| | | |
| 37 | A | Negative activation Cyl. 5 fuel injection valve | Cyl. 5 fuel injection valve |
| | | |
| 38 | A | Negative activation Cyl. 6 fuel injection valve | Cyl. 6 fuel injection valve |
| | | |
| 39 | E | Oil level - thermal | Oil level sensor |
| | | |
| 40 | A | Voltage control VANOS outlet, cylinders 5-8 | VANOS outlet cylinder 5-8, retard |
| | | |
| 41 | A | Voltage control VANOS outlet, cylinders 5-8 | VANOS outlet cylinder 5-8, advance |
| | | |
| 42 | A | Negative activation Evaporative emission valve | Evaporative emission valve |
| | | |
| 43 | A | Voltage control VANOS outlet, cylinders 1-4 | VANOS outlet cylinder 1-4, retard |
| | | |
| 44 | A | Voltage control VANOS outlet, cylinders 1-4 | VANOS outlet cylinder 1-4, advance |
| | | |
| 45 | A | Voltage control VANOS valve, cylinders 5-8 | VANOS inlet cylinder 5-8, advance |
| | | |
| 46 | A | Idle speed control - closing winding | Idle speed control valve |
| | | |
| 47 | A | Idle speed control - opening winding | Idle speed control valve |
| | | |
| 48 | A | Voltage control VANOS valve, cylinders 5-8 | VANOS inlet cylinder 5-8, retard |
| | | |
| 49 | A | VANOS connection, auxiliary wiring harness | Engine plug connector I |
| | | |
| 50 | A | Voltage control VANOS valve, cylinders 1-4 | VANOS inlet cylinder 1-4, retard |
| | | |
| 51 | | Not used | |
| | | |
| 52 | A | Negative activation Secondary air injection pump valve | Secondary air injection pump valve |
| | | |
| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Charge indicator signal (terminal 61) | Instrument cluster |
| | | |
| 2 | A | Voltage signal, terminal 30h | Integrated instrument cluster control module (IKE) |
| | | |
| 3 | A | Activation, secondary air pump relay | Secondary air injection pump relay |
| | | |
| 4 | A | Signal Electric fan | Electric fan |
| | | |
| 5 | | Not used | |
| | | |
| 6 | E | Start signal terminal 50 | Start button switch |
| | | |
| 7 | M | Ground Pedal position sensor 1 | Pedal position sensor |
| | | |
| 8 | E | Signal Pedal position sensor 1 | Pedal position sensor |
| | | |
| 9 | A | Power Pedal position sensor 1 | Pedal position sensor |
| | | |
| 10 | A | Activation, fuel pump relay (EKP) | Fuel pump relay |
| | | |
| 11 | A | Oil pressure indicator | Instrument cluster |
| | | |
| 12 | M | Ground Pedal position sensor 2 | Pedal position sensor |
| | | |
| 13 | E | Signal Pedal position sensor 2 | Pedal position sensor |
| | | |
| 14 | A | Power Pedal position sensor 2 | Pedal position sensor |
| | | |
| 15 | E | Signal Driving dynamics ON | Driving dynamics switch |
| | | |
| 16 | A | Switch monitor | Driving dynamics switch |
| | | |
| 17 | A | Engine speed signal output (TD) | Data link connector |
| | | |
| 18 | | Not used | |
| | | |
| 19 | A | Signal Back-up light | Instrument cluster |
| | | |
| 20 | | Not used | |
| | | |
| 21 | A | Signal Oil level sensor | Light module |
| | | |
| 22 | E | RH rear engine speed signal | ABS/DSC control module |
| | | |
| 23 | | Not used | |
| | | |
| 24 | E | Brake light switch signal | Brake light switch |
| | | |
| 25 | | Not used | |
| | | |
| 26 | E | Voltage supply, terminal 15 | Fuse F21 |
| | | |
| 27 | E | Data link MFL | Cruise control module |
| | | |
| 28 | E | Signal, diagnostic module, fuel tank leakage pump | Diagnostic module, fuel tank leakage |
| | | |
| 29 | E | A/C compressor signal | Relay, magnetic clutch |
| | | |
| 30 | E | Signal, diagnostic module fuel tank leakage | Diagnostic module, fuel tank leakage |
| | | |
| 31 | | Not used | |
| | | |
| 32 | E/A | Diagnosis signal TXD 2 | Data link connector |
| | | |
| 33 | E/A | Communication link (EWS) | Electronic drive-away protection control unit (EWS) |
| | | |
| 34 | E | Brake light test signal | Brake light switch |
| | | |
| 35 | | Not used | |
| | | |
| 36 | E/A | CAN-bus high | CAN link |
| | | |
| 37 | E/A | CAN-bus low | CAN link |
| | | |
| 38 | M | Ground Temperature sensor | Coolant outlet temperature sensor |
| | | |
| 39 | E | Signal Temperature sensor | Coolant outlet temperature sensor |
| | | |
| 40 | A | Start signal | Starter relay |
| | | |