Jetta GLX Wagon V6-2.8L (AFP) (2001)
Malfunction Indicator Lamp: Description and Operation
Malfunction Indicator Lamp (MIL), Significance
Malfunction Indicator Lamp (MIL), Significance
If malfunctions are recognized by the Motronic Engine Control Module (ECM) -J220-, the Malfunction Indicator Lamp (MIL) will be switched on. In
vehicles from m.y. 2000, this is done by a signal sent by the ECM to the instrument cluster
Location of Malfunction Indicator Lamp (MIL)
NOTE:
The MIL can switch on in the "flashing" or "permanently on" mode. DTC memory must be checked in every case.
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Flashing: There is a malfunction which can cause damage to the Three Way Catalytic Converter (TWC) if driven in this condition. In this case, the
vehicle must not be driven using full performance!
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Permanently on: There is a malfunction which will increase exhaust emissions. Check DTC memory of the Motronic Engine Control Module
(ECM) and/or automatic Transmission Control Module (TCM).
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If the MIL does not light up even though there is an engine running problem, or a customer has complained, DTC memory must be checked,
because malfunctions which do not switch the MIL on immediately can also be stored.