Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 229
DME 7.8 DME 7.80 · Work instruction Display OK
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DME 7.8 DME 7.80
Work instruction Display OK If not OK
2 Check wiring from DME ♦Remove plug of temperature 0 - 5 Ω Repair wiring har-
control module to temper- sensor ⇒ Step 3 ness
ature sensor for continu- → End ♦Connect special tool 9637 to
ity wiring harness (DME control
module connector).
♦Measure resistance between
special tool 9637 Pin III/34 and
temperature sensor plug Pin 2
3 Check wiring from DME ♦Remove plug of temperature 0 V Repair wiring har-
control module to temper- sensor → End ness
ature sensor for short to → End ♦Connect special tool 9637 to
B+ wiring harness (DME control
module connector).
♦Switch on the ignition
♦Measure voltage between spe-
cial tool 9637 Pin III/34 and
ground
0-13 page 2 2488 P0112
p0112 Printed in Germany, 2000
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