Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 490
DME 7.8 DME 7.80 · Figure: 20V DC 1:1
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DME 7.8 DME 7.80
Figure: 20V DC 1:1
5ms/DIV
Work instruction Display OK If not OK
5 Check wiring from rpm/ ♦Connect special tool 9637 to 0 - 5 Ω
crankshaft position sen- wiring harness
sor to DME control mod- ♦Remove connector of rpm/
ule for open circuit and crankshaft position sensor
short circuit
♦Measure resistance between
special tool 9637 pin III/32 and
plug connection pin 1
♦Measure resistance between
special tool 9637 pin III/46 and
plug connection pin 2
♦Measure resistance between
ohmmeter on special tool 9637
pin III/45 and plug connection
pin 3
♦Measure resistance between ∞ Ω
special tool 9637 pin III/32 and
ground.
♦Measure resistance between pin
III/46 and ground
0-54 page 2 2873 P0336
p0336 Printed in Germany – 1, 2000
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