Jetta GLX Wagon V6-2.8L (AFP) (2001)
Malfunction Indicator Lamp: Testing and Inspection
EPC Warning Lamp Operation
Electronic Power Control (EPC) Warning Lamp (malfunction Indicator Lamp For Electronic Accelerator (E-Gas)) In Instrument Cluster,
Significance
Location of EPC warning lamp
Functional check:
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Switch ignition on.
The EPC warning lamp must light up.
If the EPC warning lamp does not light up with the ignition switched on:
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Check EPC lamp wiring/EPC lamp bulb using wiring diagram.
If OK:
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Check instrument cluster/ECM, and replace if necessary.
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Check DTC memory, if necessary, repair any malfunctions and then erase DTC memory.
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Read-out the readiness code. If the DTC memory has been erased or the engine control module was disconnected from permanent positive, the
readiness code must be generated again.
If the EPC warning lamp lights up with the ignition switched on, continue check as follows:
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Start engine and run at idle.
The EPC warning lamp must go out after a few seconds.
If the EPC warning lamp does not go out:
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Check DTC memory. If necessary, repair any malfunctions and erase DTC memory.
If no DTCs are stored:
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Check EPC lamp wiring using wiring diagram.
If OK:
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Check instrument cluster/ECM, and replace if necessary.
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Check DTC memory; if necessary, repair any malfunctions and then erase DTC memory.
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Read-out the readiness code. If the DTC memory has been erased or the engine control module was disconnected from permanent positive, the
readiness code must be generated again.