Porsche DME 7.8 — OBD II Diagnosis Manual / PAGE 890
DME 7.8 DME 7.80 · 580 Valve Lift Control, Bank 2, Output Stage - Below
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DME 7.8 DME 7.80
580 Valve Lift Control, Bank 2, Output Stage - Below
Limit
Diagnosis conditions
• Engine running
Possible fault cause
♦Short to ground triggering wire
♦Solenoid hydraulic valve faulty
Affected terminals
III/26
Diagnosis/Troubleshooting
Work instruction Display OK If not OK
1 Check triggering wire for ♦Connect special tool 9637 to ∞ Ω
short to ground wiring harness (DME control
module plug)
♦Remove connector of the sole-
noid hydraulic valve
♦Measure resistance between III/
26 and ground
2 Replace solenoid hydrau-
lic valve
580 Valve Lift Control, Bank 2, Output Stage - Above
Limit
Diagnosis conditions
• Engine running
Possible fault cause
♦Short circuit to B+ triggering wire
Affected terminals
III/26
0-155 page 2 3755 P1345
p1345 Printed in Germany – 2, 2000
This is a source reference. Confirm exact model applicability in the original material.