BMW 1992 525i Electrical Troubleshooting Manual page 122

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DIGITAL ENGINE ELECTRONICS (DME M1.3, 6-CYLINDER M30)
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Pin Assignments
X6000
Pin
l'ype
Description/Function Connection TYpe of Signal Tester Display Measurement Notes
1 A Ignition terminal Ignition coil Primary signal Oscilloscope Engine test, test step 05
2 M Ground Ground point Ground
3 A EKP relay and TR signal EKP relay and Ground with
Can only be measered
{crankshaft reference) electronic transmission superimposed ON when crankshaft rotating
control unit
signal
~
4 A Idle speed actuator Idle speed actuator
Pulsed ground Component activation
N
~
0
5 A Evaporative valve Evaporative valve
Pulsed ground CLOSED/OPEN Perform component
.
N
activation, ground
=
>
I
Q)
closed
6 A Engine speed signal Instrument cluster Square wave One signal per Ignition
signal
7 E Air flow meter signal Air flow meter 0 ... 5V
Load signal ms See status monitoring
8 E Cylinder Identification Cylinder Identification ON/OFF See status monHoring
sensor {ignition)
sensor (connection B)
9 Not used
10 M Ground oxygen sensor Oxygen sensor Ground
11
Not used
12 A Voltage supply, air flow meter Air flow meter
~sv
13
E RxD diagnostic data line
Diagnostic socket > 10V
When cover of diagnostic
connector closed
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