1210.20Ćb
1998
Pin Assignments
04/99
BM
BMW
BMW
BMW
E = Input, A = Output, M = Ground
Pin
Connection
Description/Function
Type
117
A
Idle speed control valve control
Idle speed control valve
118
M
Oxygen sensor heating ground
Oxygen sensor (in front of catalytic
converter)
119
A
Activate valve
Cyl. 3 fuel injection valve
120
A
Activate valve
Cyl. 2 fuel injection valve
121
Not used
122
M
Ground, remaining output stages (except
for ignition and fuel injection valves)
Ground point
123
Not used
124
A
A/C compressor cut-out
Compressor control relay
125
Not used
126
Not used
127
Not used
128
E
Cyl. 3-4 knock sensor
Knock sensor
129
Not used
130
E
TI-measurement signal (fuel consumption)
Instrument cluster
131
Not used
132
E
Throttle position
Throttle position sensor
133
E
Signal input
Hot film air mass meter
134
M
Sensor ground
Oxygen sensors
135
Not used
136
Not used
137
A
Cyl. 1 ignition coil control
Cyl. 1 ignition coil
138
A
Cyl. 2 ignition coil control
Cyl. 2 ignition coil
139
Not used
140
Not used
141
A
Component supply (+)
Throttle position sensor
142
E
Battery voltage from engine control module
relay
Engine control module relay, terminal 87
143
M
Ground, ignition
Ground point
144
E
Ignition switch, terminal 15
Ignition switch, terminal 15
145
A
Activate auxiliary fan
Normal speed relay
146
A
Activate valve
Intake air resonance changeover valve