DME 7.8 DME 7.8 0 · DME faults

DME 7.8 DME 7.8 0 DME faults Note! ♦A faulty control module is extremely rare! Although in theory almost any fault can also be caused by a faulty control module, it has been shown in the past that, particularly in the case of DME control modules, even control modules sent in for checking were OK. ♦ At this point we again stress that before exchanging a DME con- trol module (the final logical step at the end of unsuccessful trou- bleshooting), all other possible fault causes must be rigorously checked; if necessary, delete the fault entry and perform a test drive or short test. ♦If other faults are entered, then remedy these first as instructed (An example: a fault in adjusting the inlet camshaft may under certain circumstances also lead to an oxygen sensor fault being output). ♦Fault entries solely in connection with the troubleshooting, repair or programming of control units (e.g. CAN timeout faults) should be deleted. Diagnosis/troubleshooting Note! The fault memory Info key F8 on 9588 Porsche System Tester ll can be used to access the 'extended fault memory'. Besides the freeze frames and environmental conditions, this also includes infor- mation on the fault type Fault type The following fault types are possible for the DME ♦Above upper limit (Max) ♦Below lower limit (Min) ♦No signal/no communication (Sig) ♦Signal implausible (Plaus) Several fault types may be stored at the same time. Fault status The following status types are possible: 2470 INTRODUCTION 0-PEIN page 13 Printed in Germany – 14, 2003 PEIN2DME78