Engine Temperature Signal Faulty
- This DTC will set if control module receives a signal from ECT sensor which corresponds to a temperature less than -49°F (-45°C) or greater than 302°F (150°C). The coolant temperature gauge may permanently read low temperature.
- To correct this problem, check for open, shorted to voltage or grounded signal leads. Also check for a fault in ignition/fuel system, high contact resistance, or poor contact.