Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Ignition ON.
Verify DTC P0641 is not set
- If the DTC is set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If the DTC is not set
Verify the EGR Position Sensor percentage parameter remains within 5 % of the EGR Valve Commanded State when commanding the EGR valve between 0-100 % with a scan tool.
NOTE: When using an EGR device control, Engine Reduced Power and Clean Exhaust Filter messages may occur after a short delay when commanding large EGR positions. The messages are a result of ECM protecting hardware during device control mode. No DTCs will be stored and the Diesel Particulate Filter does not need to be service cleaned. Exiting device control will restore normal function.
- If not within 5%
  Refer to Circuit/System Testing .
- If within 5%
Operate the vehicle within the Conditions for Running the DTCs. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify a DTC does not set.
- If a DTC sets
  Refer to Circuit/System Testing
- If a DTC does not set
All OK.