| Pin | Type | Description / Signal type | Connection /
Measuring notes |
|---|
| 1 | A | Fuel pump relay | Fuel pump relay |
| Negative | | Can only be measured with crankshaft rotating |
| 2 | A | Idle speed control - closing winding | Idle speed control valve |
| Cycled negatively | | See component control |
| 3 | A | Cyl. 1 fuel injection valve | Cyl. 1 fuel injection valve |
| Cycled negatively | | See component control, check injection time |
| 4 | A | Cyl. 4 fuel injection valve | Cyl. 4 fuel injection valve |
| Cycled negatively | | See component control, check injection time |
| 5 | A | Cyl. 5 fuel injection valve | Cyl. 5 fuel injection valve |
| Cycled negatively | | See component control, check injection time |
| 6 | M | Fuel injection valve ground | Ground point |
| Ground | | |
| 7 | A | Cyl. 6 fuel injection valve | Cyl. 6 fuel injection valve |
| Cycled negatively | | See component control, check injection time |
| 8 | A | Malfunction indicator lamp (USA only) | Instrument cluster |
| Negative | | Lights if exhaust gas related diagnostic trouble code is stored and to check lamp during ignition ON |
| 9 | | Not used | |
| | | |
| 10 | | Not used | |
| | | |
| 11 | A | Throttle position signal | Transmission control module (AGS) ABS/ASC control module |
| Pulse width modulated signal | | Value dependent on throttle position |
| 12 | E | Heated oxygen sensor signal | Heated oxygen sensor |
| Pulsating voltage 0.1-1.0 V | | Can only be measured with engine running at operating temperature |
| 13 | E | Heated oxygen sensor signal | Heated oxygen sensor |
| Pulsating voltage 0.1-1.0 V | | Can only be measured with engine running at operating temperature |
| 14 | E | Hot-film mass air flow sensor ground | Hot-film mass air flow sensor |
| Ground | | |
| 15 | M | Ignition circuit monitoring signal | Ground splice |
| | | |
| 16 | E | Crankshaft position sensor signal (speed and position) | Crankshaft position/RPM sensor |
| Alternating voltage | | |
| 17 | E | Camshaft position sensor signal (cylinder reference) | Camshaft position sensor (cylinder identification) |
| Alternating voltage | | |
| 18 | | Not used | |
| | | |
| 19 | A | Secondary air injection pump relay | Secondary air injection pump splice |
| Cycled negatively | | |
| 20 | | Not used | |
| | | |
| 21 | | Not used | |
| | | |
| 22 | A | Cyl. 7 ignition signal | Cyl. 7 ignition coil |
| Primary signal | | RZV adapter |
| 23 | A | Cyl. 6 ignition signal | Cyl. 6 ignition coil |
| Primary signal | | RZV adapter |
| 24 | A | Cyl. 4 ignition signal | Cyl. 4ignition coil |
| Primary signal | | RZV adapter |
| 25 | A | Cyl. 1 ignition signal | Cyl. 1 ignition coil |
| Primary signal | | RZV adapter |
| 26 | E | Terminal 30 | Fuse F109 |
| | | |
| 27 | A | Engine control module relay | Engine control module relay |
| Negative | | |
| 28 | M | Ground for electronics and sensor shield | Ground splice |
| Ground | | |
| 29 | A | Idle speed control - opening winding | Idle speed control valve |
| Cycled negatively | | Component control |
| 30 | | Not used | |
| | | |
| 31 | A | Cyl. 5 fuel injection valve | Cyl. 5 fuel injection valve |
| Cycled negatively | | Component control |
| 32 | A | Cyl. 8 fuel injection valve | Cyl. 8 fuel injection valve |
| Cycled negatively | | Component control |
| 33 | A | Cyl. 3 fuel injection valve | Cyl. 3 fuel injection valve |
| Cycled negatively | | Component control |
| 34 | M | Remaining output stages ground (apart from ignition and fuel injection valves) | Ground point |
| Ground | | |
| 35 | A | Cyl. 2 fuel injection valve | Cyl. 2 fuel injection valve |
| Cycled negatively | | Component control |
| 36 | A | Evaporative emission valve | Evaporative emission valve |
| Cycled negatively | | Component control |
| 37 | A | Oxygen sensor relay | Oxygen sensor relay |
| Cycled negatively | | |
| 38 | | Not used | |
| | | |
| 39 | M | Heated oxygen sensor ground | Heated oxygen sensor |
| Ground | | |
| 40 | M | Heated oxygen sensor ground | Heated oxygen sensor |
| Ground | | |
| 41 | E | Hot-film mass air flow sensor signal | Hot-film mass air flow sensor |
| 0-5 V | | Status report |
| 42 | E | Vehicle speed signal | Integrated instrument cluster control module (IKE) |
| Square-wave signal | | Status report |
| 43 | M | Crankshaft position sensor ground | Crankshaft position/RPM sensor |
| Ground | | |
| 44 | M | Camshaft position sensor ground | Camshaft position sensor (cylinder identification) |
| Ground | | |
| 45 | M | Ignition circuit monitoring ground | Shield |
| Ground | | |
| 46 | A | Injection signal for KVA | Integrated instrument cluster control module (IKE) |
| Square-wave signal | | |
| 47 | A | Engine speed signal | Integrated instrument cluster control module (IKE) |
| Square-wave signal | | One signal per ignition |
| 48 | A | A/C compressor relay signal | Heating and A/C control module |
| Negative | | Negative - compressor OFF |
| 49 | A | Cyl. 2 ignition signal | Cyl. 2 ignition coil |
| Primary signal | | RZV adapter |
| 50 | A | Cyl. 3 ignition signal | Cyl. 3 ignition coil |
| Primary signal | | RZV adapter |
| 51 | A | Cyl. 8 ignition signal | Cyl. 8 ignition coil |
| Primary signal | | RZV adapter |
| 52 | A | Cyl. 5 ignition signal | Cyl. 5 ignition coil |
| Primary signal | | RZV adapter |
| 53 | | Not used | |
| | | |
| 54 | E | Terminal 87 | Engine control module relay |
| > 10 V | | |
| 55 | M | Ignition ground | Ground point |
| Ground | | |
| 56 | E | Terminal 15 | Fuse F24 |
| > 10 V | | |
| 57 | M | Ground | Ground splice |
| Ground | | |
| 58 | | Not used | |
| | | |
| 59 | A | Throttle position sensor + 5 V voltage supply | Throttle position sensor |
| 5 V | | |
| 60 | E | Programming voltage input | Data link connector |
| Voltage value | | |
| 61 | | Not used | |
| | | |
| 62 | E | Increase idle speed signal | ABS/ASC control module |
| > 10 V | | If EML signal active |
| 63 | | Not used | |
| | | |
| 64 | E | A/C system standby signal | Heating and A/C control module |
| > 10 V | | |
| 65 | E | A/C compressor signal | Heating and A/C control module |
| > 10 V | | |
| 66 | E | up to 12/1994 Not used as of 01/1995 Antitheft alarm system signal (EWS) | Electronic drive-away protection control unit (EWS) |
| | | |
| 67 | E | Knock sensor signal | Knock sensor 4 |
| Alternating voltage | | |
| 68 | E | Knock sensor signal | Knock sensor 3 |
| Alternating voltage | | |
| 69 | E | Knock sensor signal | Knock sensor 2 |
| Alternating voltage | | |
| 70 | E | Knock sensor signal | Knock sensor 1 |
| Alternating voltage | | |
| 71 | M | Ground for temperature sensor, throttle position sensor and knock sensors | Ground splice |
| Ground | | |
| 72 | | Not used | |
| | | |
| 73 | E | Throttle position sensor signal | Throttle position sensor |
| 0.4-4.2 V | | Dependent on throttle status |
| 74 | | Not used | |
| | | |
| 75 | | Not used | |
| | | |
| 76 | | Not used | |
| | | |
| 77 | E | Intake air temperature | Intake air temperature sensor |
| Voltage value | | |
| 78 | E | Coolant temperature | Engine coolant temperature sensor |
| Voltage value | | |
| 79 | | Not used | |
| | | |
| 80 | | Not used | |
| | | |
| 81 | | Not used | |
| | | |
| 82 | E | Ignition timing adjustment | ABS/ASC control module |
| > 10 V | | If signal active |
| 83 | E | Ignition delay | ABS/ASC control module |
| <1V/12V | | Not activated/activated |
| 84 | A | CAN bus shield | Transmission control module (AGS) |
| | | |
| 85 | E/A | CAN bus low | Transmission control module (AGS) |
| | | |
| 86 | E/A | CAN bus high | Transmission control module (AGS) |
| | | |
| 87 | E | Data link RXD | Data link connector |
| | | |
| 88 | E/A | Data link TXD | Data link connector |
| | | |