DTC 123

UnclassifiedGeneral

What This Code Means

Malfunction Indicator Light (MIL) ON; Engine shutdown

Possible Causes

  • •TPS 1 voltage exceeds 4.800 volts
  • •TPS failure

Suggested Actions

  1. 1Replace the electronic throttle assembly

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Get a diagnosis walkthrough for DTC 123 on your specific Power Solutions International, Inc. unit — cited to the OEM manual, not a forum guess.

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