Circuit/System Verification

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

Ignition - On/Vehicle - In Service Mode
Verify there are no DTCs set related to the following system/component:
- B214 Reductant Temperature Sensor
- G33 Reductant Pump
- Q61 Reductant Injector
- If a related DTC is set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
- Go to next step: If a related DTC is not set
Verify DTC P204B is not set.
- If DTC P204B is set
1. Perform the scan tool control function: Reductant Pump - ON - For 20 s
2. Wait for greater than 10 s. - After the pump was turned off.
3. Verify the scan tool parameter: Reductant Pressure = -7 to 7 kPa (-1 to 1 PSI)
  - If not in the specified range
    Refer to Circuit/System Testing.
  - If in the specified range
- Go to next step: If DTC P204B is not set
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 that no DTC listed in the DTC Descriptor Category is set.
- If any of the DTCs are set
  Refer to Circuit/System Testing.
- Go to next step: If none of the DTCs are set
All OK.