AutoCodes – Ford – P00AB Ford

P00AB Ford Code - Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 2

Quick Answer

The Intake Air Temperature (IAT) Sensor is a thermistor device in which resistance changes with temperature. Common causes include Faulty Intake Air Temperature Bank 2 Sensor 1 (IAT21), Intake Air Temperature Bank 2 Sensor 1 harness is open or shorted, Intake Air Temperature Bank 2 Sensor 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P00AB Ford indicates Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 2.
Common causes
Common causes include Faulty Intake Air Temperature Bank 2 Sensor 1 (IAT21), Intake Air Temperature Bank 2 Sensor 1 harness is open or shorted, Intake Air Temperature Bank 2 Sensor 1 circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 318
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 11, 2023
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Code P00AB Ford Description

The Intake Air Temperature (IAT) Sensor is a thermistor device in which resistance changes with temperature. The resistance of a thermistor decreases as the temperature increases, and the resistance increases as the temperature decreases. The varying resistance affects the voltage drop across the sensor pins and provides electrical signals to the Powertrain Control Module (PCM) corresponding to temperature.
Thermistor-type sensors are considered passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow. The voltage that is dropped across a fixed resistor in a series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The IAT sensor provides air temperature information to the PCM. The PCM uses the air temperature information as a correction factor in the calculation of fuel, spark, and airflow.
The IAT sensor provides a quicker temperature change response time than the Engine Coolant Temperature (ECT) or Cylinder Head Temperature (CHT) sensor.
Currently, there are 2 types of IAT sensors used, a stand-alone and an integrated type. Both types function the same, however, the integrated type is incorporated into the Mass Air Flow (MAF) Sensor, the Manifold Absolute Pressure and Temperature (MAPT) Sensor, or the Turbocharger Intake Pressure and Temperature (TCIPT) Sensor instead of being a stand-alone sensor.
The Intake Air Temperature 2 (IAT2) Sensor is typically located near the intake manifold and is used to measure the intake manifold temperature. The PCM uses this information to determine the air charge and provide input for various engine control functions. The IAT2 sensor may be integrated with the Manifold Absolute Pressure (MAP) Sensor.
This Diagnostic Trouble Code (DTC) is set when DTC P0111 is not present and the Intake Air Temperature Bank 2, Sensor 1 (IAT21) value does not correlate with the Intake Air Temperature Bank 1, Sensor 1 (IAT11) value at ignition ON after a calibrated soak period (typically 6 to 8 hours). This DTC also sets if the IAT21 sensor value exceeds the maximum calibrated temperature threshold while driving at a low load and a speed greater than 56 kMH (35 MPH).
OBDII Code P00AB Ford - Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 2 - AutoCodes.com
P00AB Ford Code - Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 2

What are the Possible Causes of the DTC P00AB Ford?

  • Faulty Intake Air Temperature Bank 2 Sensor 1 (IAT21)
  • Intake Air Temperature Bank 2 Sensor 1 harness is open or shorted
  • Intake Air Temperature Bank 2 Sensor 1 circuit poor electrical connection

How to Fix the DTC P00AB Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P00AB Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P00AB Ford code?

Need more information on how to fix the P00AB Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P00AB Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P00AB Ford Code

1. What are the common symptoms of OBDII code P00AB in a Ford related to the Intake Air Temperature Sensor 1 Circuit Range/Performance Bank 2?

The common symptoms include poor engine performance, reduced fuel efficiency, rough idling, and in some cases, the Check Engine light may illuminate.

2. What are the possible causes of the OBDII code P00AB in a Ford?

The code P00AB could be triggered by a faulty intake air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the Engine Control Module (ECM).

3. How can I diagnose the OBDII code P00AB related to the Intake Air Temperature Sensor 1 in my Ford?

Diagnosing the code involves using an OBDII scanner to retrieve the specific fault code, checking the intake air temperature sensor for any signs of damage or malfunction, and inspecting the wiring and connectors for any issues.

4. Can a dirty air filter cause the OBDII code P00AB to trigger in a Ford?

Yes, a dirty or clogged air filter can disrupt the intake air temperature readings and potentially trigger the code P00AB. It is recommended to inspect and replace the air filter if necessary during diagnosis.

5. What are some repair tips for fixing the OBDII code P00AB related to the Intake Air Temperature Sensor 1 in a Ford?

Repair tips may include replacing the faulty intake air temperature sensor, repairing or replacing damaged wiring or connectors, ensuring proper sensor connection, and clearing the fault code with an OBDII scanner after repairs.

6. Is it safe to continue driving my Ford with the OBDII code P00AB triggered?

It is not recommended to drive your Ford with the code P00AB triggered, as it can lead to poor engine performance and potential long-term damage. It is advised to address the issue promptly.

7. Can a DIY enthusiast fix the OBDII code P00AB related to the Intake Air Temperature Sensor 1 in a Ford?

Depending on your level of expertise, DIY enthusiasts may be able to address the code P00AB by following repair guides, but it is recommended to consult a professional if unsure.

8. How much does it typically cost to repair the OBDII code P00AB in a Ford at a dealership or a mechanic?

The cost of repairing the code P00AB can vary depending on the underlying issue, but it may range from $100 to $300 for parts and labor at a dealership or mechanic.

9. Will resetting the Check Engine light resolve the OBDII code P00AB issue in a Ford?

Simply resetting the Check Engine light will not fix the underlying problem causing the code P00AB. It is crucial to diagnose and address the root cause of the issue to prevent it from recurring.

10. How long does it take to repair the OBDII code P00AB related to the Intake Air Temperature Sensor 1 in a Ford?

The repair time for the code P00AB can vary based on the specific issue, but it may take anywhere from 1 to 3 hours for a professional mechanic to diagnose and fix the problem.

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