Engine-Codes - Infiniti - P1119 INFINITI

P1119 INFINITI - Radiator Coolant Temperature Sensor

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1119 INFINITI Possible Causes

  • Faulty Radiator Coolant Temperature Sensor
  • Radiator Coolant Temperature Sensor harness is open or shorted
  • Radiator Coolant Temperature Sensor circuit poor electrical connection

How is the P1119 INFINITI code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P1119 INFINITI code

Labor: 1.0

The cost to diagnose the P1119 INFINITI code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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When is the code detected?

Malfunction is detected when an excessively high or low voltage from the radiator coolant temperature sensor is sent to Engine Control Module (ECM).

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1119 INFINITI Meaning

The radiator coolant temperature sensor is installed on the radiator lower tank and used to detect the radiator coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM) and returns the modified signal to the ECM as the radiator coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of thermistor decreases as temperature increase. The ECM uses this signal to control the cooling fan speed control solenoid valve.

More Information

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