P1115

Description
ECT SENSOR CIRCUIT INTERMITTENT HIGH VOLTAGE

Engine Coolant Temperature (ECT) sensor is a thermistor, that
varies resistance based on temperature. As temperature of sensor
increases, resistance decreases. High temperature will result in a low
signal voltage. DTC will set when PCM sees an ECT sensor voltage
intermittently greater than 4.8 volts.

Symptoms
You likely won't notice any drivability problems.

Causes

• ECT voltage intermittently greater than 4.8 volts.
• ECT sensor intermittently indicates ECT at less than
  -29F (-34C).

Possible Solutions

• If DTC P0118 is also set, diagnose DTC P0118 before
  proceeding.
• Check for faulty connections or damaged harness.
• Replace ECT sensor