New Beetle L4-1.8L Turbo (AWV) (2005)
Malfunction Indicator Lamp: Testing and Inspection
Electronic Power Control (EPC) Warning Lamp In Instrument Cluster, Checking
Significance of EPC warning lamp
"EPC" is an abbreviation and stands for Electronic Power Control and means "electronic engine load control".
If malfunctions are recognized in the EPC system during operation of the engine, the Engine Control Module (ECM) switches on the EPC warning lamp.
Installation location of EPC warning lamp
Recommended special tools and equipment
-
V.A.G 1526 multimeter or V.A.G 1715 multimeter
-
V.A.G 1594 connector test kit
-
Wiring diagram
Test requirement
-
The respective fuses of instrument cluster must be OK:
Test sequence
-
Switch on ignition:
EPC warning lamp must light up.
If EPC warning lamp does not light up when ignition is switched on:
-
Switch ignition off.
-
Remove instrument cluster.
-
Check wire connection of databus to instrument cluster according to wiring diagram.
-
Erase DTC memory of Engine Control Module (ECM). Diagnostic mode 4: Reset/erase diagnostic data. See: Testing and Inspection/Scan Tool
Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase Diagnostic Data
-
Generate readiness code. See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes