Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 561
DME 7.8 DME 7.8 0 · 0-73P0452
Read extracted page text
OCR can contain errors. Check the original page image for exact wording, warnings and specifications.
DME 7.8 DME 7.8 0
0-73P0452
99 Tank pressure sensor - below limit
Diagnosis conditions
• Ignition on
Possible fault cause
♦Short circuit to ground
Affected terminals
Terminal IV/21
Diagnosis/troubleshooting
Work instruction Display OK If not OK
1 Check wiring from pres- ♦Connect special tool 9637 to ∞ Ω Repair wiring har-
sure sensor to DME con- wiring harness (DME control → End ness
trol module for short to module plug) → End
ground ♦Remove connector of pressure
sensor
♦Measure resistance between
special tool 9637 Pin IV/21 and
ground
2004 P0452 0-73 page 1
Printed in Germany, 2000 p0452
This is a source reference. Confirm exact model applicability in the original material.