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Checking throttle valve control unit -J338 > < Fault lamp for electronic throttle in dash panel insert

A4 Mk1

Motronic Fuel Injection and Ignition System (6-cylinder)
Checking electronic engine power control (electronic throttle)
Check electronic throttle control fault lamp -K132

Functional check on control lamp

  • ‒ Switch the ignition on.
    • ‒ The engine control unit switches on the exhaust warning lamp.
  • ‒ Start the engine.
    • ‒ Shortly after starting the engine the exhaust warning lamp goes out if no fault in relation of the electronic throttle is stored in the fault memory.

Note:

The switch-on signal for the fault lamp is transfer via CAN bus to the dash panel insert by the engine control unit. Check data exchange between engine control unit and other CAN-control units =>Page 24-189.

Checking throttle valve control unit -J338 > < Fault lamp for electronic throttle in dash panel insert