P1114 – Infiniti DTC

Infiniti DTC P1114 – ECT Sensor Circuit Intermittent Voltage Low

DTC P1114 meaning on Infiniti

DTC P1114 on an Infiniti refers to an issue with the Engine Coolant Temperature (ECT) sensor circuit where the voltage is intermittently low. The ECT sensor is responsible for providing the engine control module (ECM) with information about the engine’s coolant temperature.

Infiniti DTC P1114 symptoms

• Check Engine Light (CEL) illuminated on the dashboard
• Engine running hotter or colder than normal
• Poor fuel economy
• Engine may run rough or stall

Infiniti DTC P1114 causes

• Faulty ECT sensor
• Corroded or damaged ECT sensor wiring
• Loose or poor electrical connections related to the ECT sensor
• Issues with the ECM

Infiniti DTC P1114 seriousness

The seriousness of DTC P1114 on an Infiniti depends on the underlying cause. Ignoring this issue can lead to poor engine performance, reduced fuel efficiency, and potential engine damage if the engine is allowed to overheat or run too cold for extended periods.

How to diagnose DTC P1114 on Infiniti

1. Use an OBD-II scanner to retrieve the trouble code and freeze frame data
2. Inspect the ECT sensor and its wiring for any visible damage or corrosion
3. Check the ECT sensor’s resistance with a multimeter to ensure it is within specifications
4. Verify the integrity of the electrical connections related to the ECT sensor
5. If necessary, perform a thorough inspection of the ECM and related components

How to fix DTC P1114 on Infiniti

1. Replace the ECT sensor if it is found to be faulty
2. Repair or replace any damaged or corroded wiring related to the ECT sensor
3. Ensure all electrical connections are secure and free of corrosion
4. If the ECM is determined to be the issue, it may need to be reprogrammed or replaced

How to erase DTC P1114 on Infiniti

• Use an OBD-II scanner to clear the trouble code
• After fixing the underlying issue, ensure the repair is completed successfully before clearing the code
• Once the code is cleared, monitor the vehicle for any recurrence of the DTC P1114

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