LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 2004 >> Intrepid SXT >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0117: Engine Coolant Temperature Sensor Low >> Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P0117: Engine Coolant Temperature Sensor Low: Testing

  1. Turn the ignition on. With the DRBIII® scan tool, monitor ECT voltage. Is the voltage below 1.0 volt? If yes, go to next step. If no, see INTERMITTENT CONDITION  under SELF-DIAGNOSTIC SYSTEM.
  2. Turn ignition off. Disconnect ECT sensor connector. Turn the ignition on, engine not running. With the DRBIII® scan tool, read ECT voltage. Is the voltage above 4.8 and 5.2 volts? If yes, replace the ECT sensor. If no, go to next step.
  3. Turn ignition off. Disconnect the ECT sensor harness connector. Disconnect PCM harness connectors. Measure the resistance between ground and the (K2) ECT signal circuit at the ECT sensor harness connector. Is the resistance below 100 ohms? If yes, repair the ECT signal circuit for a short to ground. If no, go to next step.
  4. Turn the ignition off. Disconnect the ECT sensor harness connector. Disconnect the PCM harness connectors. Measure the resistance between the (K2) ECT sensor signal circuit and the (K4) sensor ground circuit at the ECT sensor harness connector. Is the resistance below 100 ohms? If yes, repair the (K2) ECT sensor signal circuit for a short to the (K4) sensor ground circuit. If no, go to next step.
  5. Using the wiring diagram as a guide, inspect the wire harness and connectors. Pay particular attention to all power and ground circuits. If there are no possible causes remaining, replace and program the PCM. See PROGRAMMING .
scientia non olet · About LEMON Manuals