Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 614
DME 7.8 DME 7.8 0 · 0-P0601P0601
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DME 7.8 DME 7.8 0
0-P0601P0601
DME relay/control module faulty (computer monitor-
ing: reset) – signal implausible
Diagnosis conditions
• Time elapsed after engine start-up greater than 10 seconds
Possible fault cause
♦Undervoltage
♦DME relay faulty
♦DME control module faulty (checksum error caused by tamper-
ing with data record)
Affected terminals
-
Diagnosis/troubleshooting
Work instruction Display OK If not OK
1 Check voltage supply, ter- ♦Measure voltage between pin I/ > 11 V Check voltage sup-
minal 15 1 and ground. ply and repair if nec-
essary
→ End
2 Check DME relay ♦Switch on the ignition Battery positive volt- Check triggering of
age DME relay ♦Measure voltage between pin I/
Repair wiring or 8 and ground
replace DME relay
→ End
3 Replace DME control module ⇒ Step 4
4 Perform adaptation. ♦Switch on the ignition → End
♦Wait one minute
♦Do not press the accelerator
♦Switch off the ignition for at
least 10 seconds
♦Read out the fault memory
2470 P0601 0-P0601 page 1
Printed in Germany – 13, 2003 p0601
This is a source reference. Confirm exact model applicability in the original material.
