Diesel Engine Management System

DTC Troubleshooting (cont'd)

 11-109  

  1. Turn the engine ON at idling.
  1. Check the RP sensor signal voltage.

Is about 1V indicated?

YES – Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the RP sensor and at the ECM.

NO – Replace the RP sensor.

  1. Disconnect the RP sensor 3P connector.

  1. Check the RP sensor signal circuit for short. Turn the ignition switch ON (II).

Is a problem found?

YES – Repair the RP sensor signal circuit for short.

NO – Go to step 11.

  1. Turn the ignition switch OFF.