What causes P1116 on a Ford?

Self-test run on an engine that was not at operating temperature Stuck-open thermostat keeping coolant too cool Failing ECT sensor reading out of range Low coolant level around the sensor Corroded ECT connector

How do I fix P1116 on a Ford?

Warm the engine fully and re-run the self-test before replacing anything Verify thermostat operation if warm-up takes too long Check coolant level and top off with the correct coolant Compare ECT to a thermometer reading at the housing Replace the sensor if the circuit tests good but readings stay out of range

P1116 Engine Coolant Temperature Sensor Out of Self-Test Range

Q: What does P1116 mean on a Ford?

P1116 — Engine Coolant Temperature Sensor Out of Self-Test Range. Applies to F-150, Explorer, Ranger, Mustang, Taurus.

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: F-150, Explorer, Ranger, Mustang, Taurus

What does P1116 mean on a Ford?

P1116 — Engine Coolant Temperature Sensor Out of Self-Test Range. This Ford-enhanced code applies to F-150, Explorer, Ranger, Mustang, Taurus.

Common causes of P1116

Self-test run on an engine that was not at operating temperature
Stuck-open thermostat keeping coolant too cool
Failing ECT sensor reading out of range
Low coolant level around the sensor
Corroded ECT connector

How to fix P1116

Warm the engine fully and re-run the self-test before replacing anything
Verify thermostat operation if warm-up takes too long
Check coolant level and top off with the correct coolant
Compare ECT to a thermometer reading at the housing
Replace the sensor if the circuit tests good but readings stay out of range