Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE COOLANT LEVEL
NOTE:
If DTC P0116 is also present, repair the P0116 DTC before proceeding with this test.

NOTE:
An engine block heater or oil heater can cause this DTC to set erroneously.
1. Turn the ignition off.
2. With the engine cold, verify the level of coolant in the cooling system.
  Is the cooling system full of coolant?
  
  Yes
  - Go To 2
  No
  - Fill the cooling system to the proper level.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
CHECK THE COOLANT TEMPERATURE SENSOR
1. Start the engine.
2. With the scan tool, monitor the coolant temperature for 10 minutes.
  Did the coolant temperature change over time while the engine was running?
  
  Yes
  - Replace the Thermostat in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .
  No
  - Replace the Coolant Temperature Sensor in accordance with the service information.
  - Perform the POWERTRAIN VERIFICATION TEST - 6.7L. Refer to STANDARD PROCEDURE .