Dakota 2WD V8-4.7L Flex Fuel (2009)
Thermostat: Testing and Inspection
ON-BOARD DIAGNOSTICS (OBD)
All engines are equipped with On-Board Diagnostics (OBD) for certain cooling system components. If the powertrain control module (PCM) detects low
engine coolant temperature, it will record a Diagnostic Trouble Code (DTC) in the PCM memory. Do not change a thermostat for lack of heat as
indicated by the instrument panel gauge or by poor heater performance unless a DTC is present. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures for other probable causes.
