BMW 1992 525i Electrical Troubleshooting Manual page 177

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ELECTRONIC THROTTLE CONTROL (EML, 6-CYLINDER)
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Pin Assignments
X6004
Pin
"TYPe
Description/Function
Connection Type of Signal Tester Display Measurement Notes
1
NE
Drive throttle actuator EML actuator Square wave signal
2 Not used
3 E Vehicle speed signal Instrument cluster Square wave signal
4 A Idle signal DME control unit approx. 0 V
5
NE
Engine coolant temperature Water temp sensor (EML) approx. 0 ... 5 V
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6 E!A Diagnosis Diagnostic connector TxD 0
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7 E Kick-down signal Pedal position sensor approx. 5 V
0
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8 E
NC
system signal IHKR/F3 control unit approx. 12 V (ON)
9 E Diagnosis Diagnostic connector RxD
10
NE Drive throttle actuator
EM L actuator
Square wave signal
11
A Electronic ground
Component ground Ground
12 A EML -warning lamp
Instrument cluster
13 A Throttle position signal
ASC/EGS Square wave signal
14 E Output ground
Ground point Ground
15 E Throttle position
Pedal position sensor 0.4 ... 4V
16 E Actuator position sensor
EML actuator 1 V .. .4.6 V
17 A 5 V (not short circuit proof)
Pedal position sensor/ 5V
EML actuator