Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 1026
DME 7.8 DME 7.80 · Diagnosis/Troubleshooting
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DME 7.8 DME 7.80
Diagnosis/Troubleshooting
Work instruction Display OK If not OK
1 Check wiring from DME ♦Connect special tool 9637. 0 V Repair wiring har-
control module, pin I/7, to ⇒ Step 2. ness ♦Measure voltage between pin I/
throttle part for short cir- → End. 7 and pin I/2.
cuit to ground.
2 Check wiring from DME ♦Connect special tool 9637. 0 V Repair wiring har-
control module, pin I/9, to → End. ness ♦Measure voltage between pin I/
throttle part for short cir- → End. 9 and pin I/2.
cuit to ground.
0-175 page 4 2470 P1505
p1505 Printed in Germany – 3, 2001
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