BMW
6450.7Ća
1998
Pin Assignments
04/99
E = Input, A = Output, M = Ground
X1527
Pin Type Description/Function Connection
1 E Outside temperature Outside temperature sensor
2 E Evaporator temperature Evaporator temperature sensor
3 E Heater temperature, left Left heat exchanger temperature sensor
4 E Heater temperature, right Right heat exchanger temperature sensor
5 E Vehicle speed signal (Speedometer output
signal)
Instrument cluster
6 E RPM speed signal TD Engine control module (DME)
7 E Illumination input Illumination
8 A Output signal On-board computer
9 E Terminal 50 Starter
10 A RPM speed increase Engine control module (DME)
11 A A/C compressor activation Pressure switch
12 A Rear window signal Rear window
13 A Water valve activation, right Right water valve
14 A Fresh air flap motor activation Fresh air flap motor
15 A Fresh air flap motor activation Fresh air flap motor
16 A Fresh air flap motor activation Fresh air flap motor
17 A Fresh air flap motor activation Fresh air flap motor
18 A Water valve activation, left Left water valve
19 A A/C fan activation A/C fan final stage
20 E Independent ventilation Relay box
21 M Ground Control panel
22 M Ground Mixing actuator
23 M Ground Control panel
24 E Terminal 15 Fuse
25 E Terminal 30 Fuse
26 E/A Diagnostic data link Data link connector
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