P0117

(P0117) ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT LOW






When Monitored and Set Condition
^ When Monitored: With the engine running and no fault in the throttle valve actuator.
^ Set Condition: The ECT Sensor value is less than -39 °C (-38 °F) for more than 1 second.


POSSIBLE CAUSES
ENGINE COOLANT TEMPERATURE (ECT) SENSOR SIGNAL CIRCUIT OPEN
ENGINE COOLANT TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
ENGINE COOLANT TEMPERATURE SENSOR
POWERTRAIN CONTROL MODULE

Diagnostic Test
1. CHECK FOR CURRENT DTC





Turn the ignition on.
With the DRB III, read the PCM DTCs.
Is this DTC present?
Yes>> For complete diagnosis of this DTC, (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.

Note: Check for any Technical Service Bulletins that may apply.

Were there any problems found?
Yes>> Repair as necessary.
Perform 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.