DTC P0116 Cadillac
Engine Coolant Temperature (ECT) Sensor Performance
Engine Coolant Temperature (ECT) Sensor Performance
Description
DTCs P0111, P0112, P0113, P0117, P0118, P0502, P0503, P2610 are not set. The engine has had a minimum ignition OFF time of 8 h. The ignition is ON. The start-up IAT is warmer than -7°C (+19°F). This DTC runs once per cold start when the above conditions are met.
Cause and Solution
The ECM detects a temperature difference at power-up that indicates that the ECT sensor is 30°C (54°F) warmer than the IAT sensor.
OR
The ECM detects a temperature difference at power-up that indicates that the ECT sensor is 10°C (18°F) warmer than the IAT sensor, and the time spent cranking the engine is greater than 10 s, when the fuel level is greater than 5 %.
OR
Video Guide
Diagnostic Info
- DTC Code: P0116
- Brand: Cadillac