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P0112 2005 Scion xB Code - Intake Air Temperature Circuit Low Input

Quick Answer

The OBD-II trouble code P0112 for a 2005 Scion xB indicates that there is a low input signal from the Intake Air Temperature (IAT) sensor circuit. Common causes include Faulty Intake Air Temperature sensor, Damaged or corroded wiring/connectors, ECM software issue. 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
P0112 2005 Scion xB indicates Intake Air Temperature Circuit Low Input.
Common causes
Common causes include Faulty Intake Air Temperature sensor, Damaged or corroded wiring/connectors, ECM software issue.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0112 2005 Scion xB Description

The OBD-II trouble code P0112 for a 2005 Scion xB indicates that there is a low input signal from the Intake Air Temperature (IAT) sensor circuit. The IAT sensor is crucial for the engine control module (ECM) to determine the temperature of the incoming air into the engine. This information is used to adjust the air/fuel mixture for optimal combustion and performance. A low input from the IAT sensor can lead to incorrect fueling, affecting the engine's efficiency and overall performance.

OBDII Code P0112 2005 Scion xB - Intake Air Temperature Circuit Low Input
P0112 2005 Scion xB Code - Intake Air Temperature Circuit Low Input

Common Causes of P0112 2005 Scion xB

  1. Faulty Intake Air Temperature sensor
  2. Damaged or corroded wiring/connectors
  3. ECM software issue
  4. Air intake system leak
  5. Poor electrical connection

Symptoms of P0112 2005 Scion xB

  1. Check engine light illuminated
  2. Reduced fuel efficiency
  3. Rough idle or stalling
  4. Decreased engine performance
  5. Hesitation during acceleration

How to Fix P0112 2005 Scion xB

  1. Begin by diagnosing the issue using an OBD-II scanner to confirm the P0112 trouble code.
  2. Inspect the Intake Air Temperature sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the wiring harness and connectors for any issues. Repair or replace damaged components.
  4. Clear the trouble code from the ECM memory and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to identify the root cause, such as checking the ECM for faults or leaks in the air intake system.

Cost to Fix P0112 2005 Scion xB

The typical repair costs for addressing a P0112 code on a 2005 Scion xB can vary depending on the specific cause of the issue. In general, replacing a faulty Intake Air Temperature sensor can cost between $50 to $100 for the part. Labor costs at auto repair shops can range from $80 to $150 per hour, and the total repair bill may amount to $150 to $300, including parts and labor. It's important to consider that prices may vary based on location, the shop's labor rates, and any additional diagnostics or repairs needed.

When is the Code Detected?

An excessively low voltage from the sensor is sent to ECM.

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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 P0112 2005 Scion xB Code

1. What are the common symptoms of OBDII code P0112 in a 2005 Scion xB?

The common symptoms of OBDII code P0112 in a 2005 Scion xB include poor engine performance, rough idling, decreased fuel efficiency, and potential stalling.

2. What does the OBDII code P0112 for a 2005 Scion xB indicate?

The OBDII code P0112 in a 2005 Scion xB indicates that there is a low input signal from the intake air temperature sensor circuit.

3. What are the possible causes of the intake air temperature circuit low input code in a 2005 Scion xB?

Possible causes of the intake air temperature circuit low input code in a 2005 Scion xB include a faulty intake air temperature sensor, damaged wiring or connectors, or a problem with the engine control module (ECM).

4. How can I diagnose the intake air temperature circuit low input issue in my 2005 Scion xB?

To diagnose the intake air temperature circuit low input issue in a 2005 Scion xB, you can use a scan tool to read the OBDII code, inspect the intake air temperature sensor and its wiring, and test the sensor's resistance with a multimeter.

5. Can I still drive my 2005 Scion xB with the P0112 OBDII code?

It is not recommended to drive your 2005 Scion xB with the P0112 OBDII code, as it can lead to poor engine performance and potential damage if left unresolved.

6. How do I repair the intake air temperature circuit low input issue in my 2005 Scion xB?

To repair the intake air temperature circuit low input issue in a 2005 Scion xB, you may need to replace the intake air temperature sensor, repair any damaged wiring or connectors, or reprogram the engine control module (ECM).

7. Can a DIY enthusiast fix the P0112 code in a 2005 Scion xB?

A DIY enthusiast with some automotive repair experience may be able to fix the P0112 code in a 2005 Scion xB by following a repair manual or online guides, but professional help is recommended for accurate diagnosis and repair.

8. How much does it cost to fix the intake air temperature circuit low input issue in a 2005 Scion xB?

The cost to fix the intake air temperature circuit low input issue in a 2005 Scion xB can vary depending on the root cause of the problem, but it may range from $100 to $300 for parts and labor.

9. Will resetting the OBDII code P0112 in my 2005 Scion xB make it go away?

Resetting the OBDII code P0112 in a 2005 Scion xB may temporarily clear the code, but it will likely reappear if the underlying issue causing the low input signal from the intake air temperature sensor is not addressed.

10. Is the intake air temperature sensor easy to access in a 2005 Scion xB?

The intake air temperature sensor in a 2005 Scion xB is typically located near the air intake system and can be relatively easy to access for inspection and replacement.

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