FIAT P0119 Code

Solution:
  • PERFORM AN INSPECTION OF THE ECT SENSOR CIRCUIT
  • REPLACE THE ECT SENSOR
  • REPLACE THE PCM

When it comes to understanding and repairing cars, one of the most common and difficult issues is the FIAT P0119 Code. This code is caused by the Engine Coolant Temperature Sensor 1 Circuit Intermittent, which is a variable resistor that functions as a two wire, 5 volt sensor. The Powertrain Control Module supplies the ECT Sensor with a 5 volt reference and a filtered ground (return) circuit, and any issue with this could lead to the FIAT P0119 Code. This article will discuss the causes and solutions to this issue.

Causes and Solutions to FIAT P0119 Code

Cause Solution
ECT Signal Circuit Intermittently Shorted to Voltage Perform an Inspection of the ECT Sensor Circuit
ECT Signal Circuit Intermittently Shorted to Ground Replace the ECT Sensor
ECT Signal Circuit Intermittently Open Replace the PCM
Sensor Ground Circuit Intermittently Open Replace the ECT Sensor
Engine Coolant Temperature (ECT) Sensor Perform an Inspection of the ECT Sensor Circuit
Powertrain Control Module (PCM) Replace the PCM

Perform an Inspection of the ECT Sensor Circuit

When diagnosing a FIAT P0119 Code, the first step is to perform an inspection of the ECT Sensor circuit. This includes checking the power and ground circuits to the ECT Sensor, and verifying that the reference voltage is within specifications. The technician must also check for any possible shorts or opens in the circuit.

Replace the ECT Sensor

If the inspection of the ECT Sensor circuit reveals an intermittent short to ground, then the ECT Sensor should be replaced. The technician must also check for any possible damaged or corroded wiring, and repair or replace any damaged or corroded wiring as necessary.

See also  FIAT B00A0-81 Code

Replace the PCM

If the inspection of the ECT Sensor circuit reveals an intermittent open or short to voltage, then the Powertrain Control Module (PCM) should be replaced. The technician must also check for any possible damaged or corroded wiring, and repair or replace any damaged or corroded wiring as necessary.

Conclusion

When it comes to diagnosing and repairing the FIAT P0119 Code, it is important to remember to perform an inspection of the ECT Sensor circuit, replace the ECT Sensor if necessary, and replace the PCM if necessary. With the right diagnosis and repair, the FIAT P0119 Code can be fixed and the vehicle can be running again in no time. When dealing with the FIAT P0119 Code, it is important to be aware of the causes and solutions, so that the right repair can be done quickly and effectively.

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