Circuit/System Verification

NOTE:

If set only as a history DTC, do not replace any component.

1. Ignition - On/Vehicle - In Service Mode
2. Verify there are no other DTCs set, except for DTC P155E, P155F, P156E.
   • If any other DTCs are set 

     Refer to: Diagnostic Trouble Code (DTC) List - Vehicle

   • Go to next step: If no other DTCs are set 
3. Replace the component: T19 Power Supply Transformer
4. If the repair was related to a DTC, duplicate the Conditions for Running the DTC and use the Freeze Frame/Failure Records, if applicable, in order to verify the DTC does not set.
5. If any of the DTCs are set 
6. Replace the component: K20 Engine Control Module
   • Go to next step: If none of the DTCs are set 

All OK.