Thermostat: Testing and Inspection

DIAGNOSIS AND TESTING - THERMOSTAT

ON-BOARD DIAGNOSTICS

All models are equipped with On-Board Diagnostics for certain cooling system components. If the Powertrain Control Module (PCM) detects low engine coolant temperature, it will record a Diagnostic Trouble Code (DTC). For other DTC numbers, Monitors, Trips, Drive Cycles and Readiness Codes.