Diagnostic Test

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

ACTIVE DTC
NOTE:
If there are any DEF Injector DTCs or DEF Supply/DEF Purge Pump DTCs present, perform the Diagnostics on those DTCs before continuing with this one.
1. Turn the ignition on.
2. With the scan tool, navigate to Systems Tests and actuate the DEF Injector (Dosing Valve) Actuator Test.
3. With the scan tool, View DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION. Refer to INTERMITTENT DTC .
CHECK THE DEF LINE AND FITTINGS FOR RESTRICTIONS
1. Turn the ignition off.
2. Remove the line from the fitting at the DEF Supply Pump Assembly and DEF Injector and inspect the fittings for signs of crystallization or blockages.
  Were any blockages found?
  
  Yes
  - Repair or replace the blocked lines or fittings as necessary. If P241D was also present, it will be necessary to reset the SCR Timer: Using the scan tool, Go to Misc. Functions> SCR Extend Mileage W Active Fault (and reset the Timer).
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  No
  - Replace the DEF Supply Pump Assembly in accordance with the service information. If P241D was also present, it will be necessary to reset the SCR Timer: Using the scan tool, Go to Misc. Functions> SCR Extend Mileage W Active Fault (and reset the Timer).
    Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .