1210.20Ćb
1998
Pin Assignments
04/99
BM
BMW
BMWBMW
Z3
E = Input, A = Output, M = Ground
Pin ConnectionDescription/FunctionType
117 A Idle speed control valve control Idle speed control valve
118 A Oxygen sensor heating 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/fuel tank pressure
sensors
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
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