Diagnostic Test

WARNING: This page is about a different car, the 2009 Jeep Patriot and 2009 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.

CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION.
NOTE: Diagnose and repair any engine coolant temperature sensor circuit DTCs before proceeding with this test.

NOTE: Extremely cold ambient temperatures may cause this DTC to set.
1. Perform the diagnostic procedure for CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR OPERATION. Refer to Non-DTC Diagnostics/Driveability - Gas - Diagnosis and Testing .
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Refer to the CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .