Engine Coolant Temperature Sensor Short Circuit

P0116 - ENGINE COOLANT TEMPERATURE SENSOR SHORT CIRCUIT

P0116 - Engine Coolant Temerature Sensor Short Circuit:

WHEN MONITORED
With the engine running and no fault in the throttle valve actuator.

SET CONDITION
The ECT Sensor value is more than 170° C (338° F) for more than 1 second.

POSSIBLE CAUSES
- Engine coolant temperature sensor signal circuit short to ground
- Engine coolant temperature sensor signal circuit short to voltage
- Engine coolant temperature sensor
- Powertrain control module


DIAGNOSTIC TEST




1. CHECK FOR CURRENT DTC

Turn the ignition on.
With the DRB III(R), read PCM DTCs.

Q: Is this DTC present?

YES: For complete diagnosis of this DTC, refer to (P0116) ENGINE COOLANT TEMPERATURE SENSOR PERFORMANCE.

NO: Go To 2

2. INTERMITTENT WIRING AND CONNECTORS

The conditions necessary to set this DTC are not present at this time.

NOTE:
- Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits.
- Check for any Technical Service Bulletins that may apply.

Q: Were there any problems found?

YES: Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST - VER 2. Powertrain Verification Test - Ver 2

NO: The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.