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Home >> Audi >> 2002 >> A6 Sedan (4B2) V6-3.0L (AVK) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Malfunction Indicator Lamp >> Testing and Inspection >> MIL Functional Check
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MIL Functional Check



Exhaust Malfunction Indicator Lamp (MIL), Checking

Function test of warning lamp
- Switch ignition on.
- Warning lamp for On Board Diagnostic (Malfunction Indicator Lamp -MIL-) must light up
- Start engine.
- Shortly after engine is started, the Malfunction Indicator Lamp (MIL) will go out if there are no malfunctions stored in DTC memory that relate to the EPC system

NOTE: The switch-on signal for Malfunction Indicator Lamp (MIL) is transferred from the Engine Control Module (ECM) to the instrument cluster via CAN- bus. Check data exchange between Engine Control Module (ECM) and other CAN capable control modules Testing and Inspection
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