Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 625
DME 7.8 DME 7.8 0 · Remove connector of throttle part:
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DME 7.8 DME 7.8 0
Remove connector of throttle part:
Work instruction Display OK If not OK
6 Check resistance of ♦Connect special tool 9637 to 1,2 - 1,6 Ω Replace throttle part
motor actuator in throttle wiring harness (DME control (at 20 °C) Step 8.
part. module plug). Step 7.
♦Measure resistance between pin
I/7 and pin I/9.
7 Replace DME control module. Step 8.
8 Perform adaptation. ♦Switch on the ignition. → End. → End.
♦Wait one minute.
♦Do not press the accelerator.
♦Switch off the ignition for at
least 10 seconds.
♦Read out the fault memory.
2442 P0638 0-88.2 page 3
Printed in Germany – 6, 2002 p0638
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