Pin | Type | Description / Signal type | Connection / Measuring notes |
---|
1 | A | EKP relay | Fuel pump relay 1 |
Negative | | Can only be measured with crankshaft rotating |
2 | A | Idle actuator closing winding | Idle actuator |
Negative clocked | | See component activation |
3 | A | Fuel injector cyl. 1 | Fuel injector cyl. 1 |
Negative clocked | | See component activation, check injection time |
4 | A | Fuel injector cyl. 4 | Fuel injector cyl. 4 |
Negative clocked | | See component activation, check injection time |
5 | A | Fuel injector cyl. 6 | Fuel injector cyl. 6 |
Negative clocked | | See component activation, check injection time |
6 | M | Ground, fuel injector | Ground point |
Ground | | |
7 | A | Fuel injector cyl. 7 | Fuel injector cyl. 7 |
Negative clocked | | See component activation, check injection time |
8 | A | Defect lamp (USA only) | Instrument cluster |
Negative | | Lights if exhaust gas-related defect code is stored and to check lamp during ignition ON |
9 | | Not used | |
| | |
10 | | Not used | |
| | |
11 | A | Throttle position signal | AGS transmission control unit ABS/ASC control unit |
Pulse width modulated signal | | Value dependent on throttle position |
12 | E | 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 | 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 | Ground, hot film air mass meter | Hot film air mass meter |
Ground | | |
15 | M | Signal, ignition circuit monitoring | Ground connector |
| | |
16 | E | Crankshaft sensor signal (speed and position) | Crankshaft sensor |
Alternating voltage | | |
17 | E | Camshaft sensor signal (cylinder reference) | Camshaft sensor |
Alternating voltage | | |
18 | | Not used | |
| | |
19 | A | Secondary air pump relay | Connector, secondary air pump |
Negative clocked | | |
20 | | Not used | |
| | |
21 | | Not used | |
| | |
22 | A | Ignition signal cyl. 7 | Ignition coil cyl. 7 |
Primary signal | | RZV adapter |
23 | A | Ignition signal cyl. 6 | Ignition coil cyl. 6 |
Primary signal | | RZV adapter |
24 | A | Ignition signal cyl. 4 | Ignition coil cyl. 4 |
Primary signal | | RZV adapter |
25 | A | Ignition signal cyl. 1 | Ignition coil cyl. 1 |
Primary signal | | RZV adapter |
26 | E | Terminal 30 | Fuse F109 |
| | |
27 | A | DME relay | DME relay |
Negative | | |
28 | M | Ground for electronics and sensor shield | Ground connector |
Ground | | |
29 | A | Idle actuator opening winding | Idle actuator |
Negative clocked | | Component activation |
30 | | Not used | |
| | |
31 | A | Fuel injector cyl. 5 | Fuel injector cyl. 5 |
Negative clocked | | Component activation |
32 | A | Fuel injector cyl. 8 | Fuel injector cyl. 8 |
Negative clocked | | Component activation |
33 | A | Fuel injector cyl. 3 | Fuel injector cyl. 3 |
Negative clocked | | Component activation |
34 | M | Ground, remaining output stages (apart from ignition and fuel injectors) | Ground point |
Ground | | |
35 | A | Fuel injector cyl. 2 | Fuel injector cyl. 2 |
Negative clocked | | Component activation |
36 | A | Tank ventilation valve | Charcoal filter valve |
Negative clocked | | Component activation |
37 | A | Oxygen sensor relay | Oxygen sensor relay |
Negative clocked | | |
38 | | Not used | |
| | |
39 | M | Oxygen sensor ground | Heated oxygen sensor |
Ground | | |
40 | M | Oxygen sensor ground | Heated oxygen sensor |
Ground | | |
41 | E | Signal, hot film air mass meter | Hot film air mass meter |
0-5 V | | Status scanning |
42 | E | Speed signal | Integrated electronic control unit (IKE) |
Square-wave signal | | Status scanning |
43 | M | Crankshaft sensor ground | Crankshaft sensor |
Ground | | |
44 | M | Camshaft sensor ground | Camshaft sensor |
Ground | | |
45 | M | Ground, ignition circuit monitoring | Shield |
Ground | | |
46 | A | Injection signal for KVA | Integrated electronic control unit (IKE) |
Square-wave signal | | |
47 | A | Engine speed signal | Integrated electronic control unit (IKE) |
Square-wave signal | | One signal per ignition |
48 | A | Signal, A/C compressor relay | Heating and A/C control module |
Negative | | Negative - compressor OFF |
49 | A | Ignition signal cyl. 2 | Ignition coil cyl. 2 |
Primary signal | | RZV adapter |
50 | A | Ignition signal cyl. 3 | Ignition coil cyl. 3 |
Primary signal | | RZV adapter |
51 | A | Ignition signal cyl. 8 | Ignition coil cyl. 8 |
Primary signal | | RZV adapter |
52 | A | Ignition signal cyl. 5 | Ignition coil cyl. 5 |
Primary signal | | RZV adapter |
53 | | Not used | |
| | |
54 | E | Terminal 87 | DME relay |
> 10 V | | |
55 | M | Ignition ground | Ground point |
Ground | | |
56 | E | Terminal 15 | Fuse F24 |
> 10 V | | |
57 | M | Ground | Ground connector |
Ground | | |
58 | | Not used | |
| | |
59 | A | Throttle potentiometer + 5 V supply | Throttle potentiometer |
5 V | | |
60 | E | Programming voltage input | Diagnostic connector |
Voltage value | | |
61 | | Not used | |
| | |
62 | E | Signal, idle speed increase (anti-stall) | ABS/ASC control unit |
> 10 V | | If EML signal active |
63 | | Not used | |
| | |
64 | E | Air conditioning 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 immobilizer 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 potentiometer and knock sensors | Ground connector |
Ground | | |
72 | | Not used | |
| | |
73 | E | Throttle potentiometer signal | Throttle potentiometer |
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 | Coolant temperature sensor |
Voltage value | | |
79 | | Not used | |
| | |
80 | | Not used | |
| | |
81 | | Not used | |
| | |
82 | E | Ignition timing adjustment | ABS/ASC control unit |
> 10 V | | If signal active |
83 | E | Ignition fade-out | ABS/ASC control unit |
<1V/12V | | Not activated/activated |
84 | A | CAN bus shield | AGS transmission control unit |
| | |
85 | E/A | CAN bus low | AGS transmission control unit |
| | |
86 | E/A | CAN bus high | AGS transmission control unit |
| | |
87 | E | Diagnostic link RXD | Diagnostic connector |
| | |
88 | E/A | Diagnostic link TXD | Diagnostic connector |
| | |