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Home >> Jeep >> 2007 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine & Automatic Transmission Cooling System) >> Engine >> Thermostat-Engine Coolant >> Diagnosis And Testing >> Engine Coolant Thermostat >> On-Board Diagnostics

On-Board Diagnostics

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

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. Refer to OPERATION .

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