What causes P1114 on a Honda?

Faulty engine coolant temperature (ECT) sensor Low engine coolant level Open or short in the ECT sensor harness Poor electrical connection in the ECT circuit Faulty engine coolant thermostat

How do I fix P1114 on a Honda?

Confirm the code and check for related faults Check coolant level and top up if low Inspect the ECT sensor and connector for corrosion and loose pins Check the wiring for an open or short to the control module Test the ECT sensor and thermostat against spec Replace the failed part, then clear the code and retest

P1114 The engine control module saw the engine coolant temperature sensor signal intermittently low

Q: What does P1114 mean on a Honda?

P1114. The engine control module saw the engine coolant temperature sensor signal intermittently low. The module may read the engine as hot and run the cooling fan at the wrong time.. Applies to Honda and Acura models that use this code.

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: Honda and Acura models that use this code

What does P1114 mean on a Honda?

P1114. The engine control module saw the engine coolant temperature sensor signal intermittently low. The module may read the engine as hot and run the cooling fan at the wrong time.. This Honda-enhanced code applies to Honda and Acura models that use this code.

Common causes of P1114

Faulty engine coolant temperature (ECT) sensor
Low engine coolant level
Open or short in the ECT sensor harness
Poor electrical connection in the ECT circuit
Faulty engine coolant thermostat

How to fix P1114

Confirm the code and check for related faults
Check coolant level and top up if low
Inspect the ECT sensor and connector for corrosion and loose pins
Check the wiring for an open or short to the control module
Test the ECT sensor and thermostat against spec
Replace the failed part, then clear the code and retest

Sources and review

Checked against two independent sources.
Last updated 2026-10-10.