P00AB Lincoln 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 Lincoln 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.
Code P00AB Lincoln Description
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).
What are the Possible Causes of the DTC P00AB Lincoln?
- 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 Lincoln?
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 Lincoln 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.
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Frequently Asked Questions about P00AB Lincoln Code
What does the OBDII code P00AB mean for a Lincoln vehicle?
P00AB indicates an issue with the Intake Air Temperature Sensor 1 Circuit's range or performance on Bank 2.
What are common symptoms of the P00AB code?
Symptoms may include poor engine performance, reduced fuel efficiency, engine hesitation, or the check engine light being illuminated.
What causes the P00AB code to appear?
Common causes include a faulty intake air temperature sensor, wiring issues, poor electrical connections, or a damaged sensor.
How can I diagnose the P00AB code?
Use an OBDII scanner to confirm the code, visually inspect the wiring and sensor, and test the sensor's voltage or resistance to ensure it is functioning properly.
Can a dirty air filter trigger the P00AB code?
Yes, a clogged or dirty air filter may restrict airflow, which can impact the intake air temperature readings and cause the code.
How do I fix the P00AB code on a Lincoln?
Repairs may include replacing the intake air temperature sensor, repairing or replacing damaged wiring, or cleaning the air filter.
Is it safe to drive with the P00AB code?
While the vehicle may still run, driving with this code can lead to reduced engine performance or damage over time, so it’s best to address it promptly.
How much does it cost to fix the P00AB code?
Repair costs vary depending on parts and labor, but replacing an intake air temperature sensor typically costs $50-$200.
Can extreme weather conditions cause the P00AB code?
Yes, extreme temperatures can sometimes affect the intake air temperature sensor’s readings and trigger the code.
Does the P00AB code affect emissions?
Yes, this code can impact engine performance, potentially increasing emissions and causing the vehicle to fail an emissions test.
Discuss the causes and fixes for P00AB Lincoln OBDII Code
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