
The P0113 Volvo diagnostic trouble code is specific to Volvo vehicles and indicates a problem with the intake air temperature sensor circuit high input.
In this article, we will explore what p0113 means for Volvo cars, its common causes, symptoms, and possible solutions.
Contents
What is P0113?
p0113 is an OBD-II diagnostic trouble code that is related to the intake air temperature (IAT) sensor circuit. The IAT sensor is responsible for measuring the temperature of the air entering the engine.
This information is vital for the engine control unit (ECU) to adjust the fuel delivery and ignition timing.
When the ECU detects a high input signal from the IAT sensor circuit, it triggers the p0113 code. This code serves as an indication that there is an issue with the IAT sensor or its associated wiring.
Importance of the IAT Sensor
The IAT sensor plays a crucial role in the engine’s performance by providing accurate temperature readings.
The ECU utilizes this information to determine the optimal air-to-fuel ratio and ignition timing, ensuring efficient combustion and engine operation.
Without the IAT sensor, the ECU would struggle to adjust fuel delivery and ignition timing accurately. This could result in poor engine performance, decreased fuel efficiency, and increased emissions.
Common Causes of P0113 Volvo
Several factors can contribute to the p0113 code appearing in Volvo cars. Understanding these common causes can help diagnose and resolve the issue effectively. Some of the most common causes include:
Faulty IAT Sensor
A malfunctioning or damaged IAT sensor can send incorrect signals to the ECU, causing the p0113 code to trigger. Over time, these sensors may become contaminated or fail due to wear and tear.
Regular inspection and maintenance can help identify and address any issues with the IAT sensor promptly.
Wiring Issues

Damaged or corroded wiring connections between the IAT sensor and the ECU can result in a high input signal. Faulty wiring can be caused by exposure to the elements, rodents chewing on the wires, or poor electrical connections.
Thoroughly inspecting and repairing any damaged wiring can help resolve the p0113 code.
Intake Air Temperature Sensor Connector Problems
Loose or disconnected connectors can disrupt the signal between the IAT sensor and the ECU, leading to the p0113 code. It’s essential to ensure that the connectors are properly attached and secure.
Regular checks of the sensor connectors can help prevent this issue from occurring.
Engine Air Intake Blockage
If there is a restriction or blockage in the air intake system, it can impact the IAT sensor’s ability to accurately measure the air temperature. This can cause the sensor to send a high input signal to the ECU, triggering the p0113 code.
Regularly inspecting and cleaning the air intake system can help prevent blockages and ensure optimal sensor performance.
Symptoms of P0113
When the p0113 code appears in a Volvo vehicle, it may exhibit the following symptoms:
Check Engine Light
The most apparent indication of a p0113 code is the illumination of the check engine light on the dashboard. The light serves as a warning that the vehicle’s onboard computer has detected a fault.
It is important not to ignore this warning and address the issue promptly.
Poor Engine Performance
A faulty IAT sensor can lead to incorrect air-to-fuel ratios, resulting in poor engine performance. You may experience reduced power, hesitation, or stalling while driving.
If you notice any changes in your vehicle’s performance, it is recommended to have it inspected by a qualified mechanic.
Decreased Fuel Efficiency

Since the ECU relies on accurate air temperature readings to adjust fuel delivery, a faulty IAT sensor can cause the engine to consume more fuel than necessary. This can lead to decreased fuel efficiency.
Monitoring your vehicle’s fuel consumption and addressing any noticeable changes can help identify potential issues with the IAT sensor.
Resolving the P0113 Code
Realizing that various brands encounter similar issues emphasizes the shared nature of these automotive dilemmas.
To address the p0113 code and restore your Volvo’s optimal performance, consider the following steps:
Check the IAT Sensor and Wiring
Begin by inspecting the IAT sensor for any signs of damage, contamination, or wear.
Ensure that the wiring connections are secure and free from corrosion. If any issues are found, replace the sensor or repair the wiring as necessary.
It is important to use genuine Volvo parts for replacements to ensure compatibility and reliability.
Clean or Replace the Air Filter
A clogged or dirty air filter can affect the IAT sensor’s readings. It is recommended to clean or replace the air filter regularly to ensure unrestricted airflow and accurate temperature measurements.
This simple maintenance task can contribute to improved engine performance and longevity.
Inspect the Intake System
Check for any blockages or restrictions in the air intake system. Remove any debris or obstructions that could obstruct the airflow to the IAT sensor.
Regularly inspecting and cleaning the intake system can prevent issues with the sensor and ensure optimal engine performance.
Reset the ECU
After addressing the underlying issues, it’s crucial to reset the ECU and clear the p0113 code. This can be done using an OBD-II scanner or by disconnecting the vehicle’s battery for a few minutes.
Resetting the ECU allows it to recalibrate and adapt to the repaired components, ensuring accurate readings and optimal engine performance.
If you are uncertain about diagnosing or resolving the p0113 code on your Volvo, it is recommended to consult a qualified mechanic or automotive technician.
They have the expertise and specialized equipment to accurately diagnose and repair the issue.
Regular maintenance and inspections can help prevent the occurrence of p0113 and other potential trouble codes in your Volvo vehicle.
Remember, proper maintenance and regular inspections can help prevent the occurrence of p0113 and other potential trouble codes in your Volvo vehicle.
FAQ
What is the p0113 diagnostic trouble code?
The p0113 code is an OBD-II diagnostic trouble code that indicates a problem with the intake air temperature (IAT) sensor circuit. It is specific to Volvo vehicles and is triggered when the engine control unit (ECU) detects a high input signal from the IAT sensor circuit.
What are the common causes of p0113 in Volvo vehicles?
Some common causes of the p0113 code in Volvo vehicles include a faulty IAT sensor, wiring issues between the sensor and the ECU, problems with the IAT sensor connector, and engine air intake blockage.
What are the symptoms of p0113 in Volvo vehicles?
When the p0113 code appears, common symptoms in Volvo vehicles may include the illumination of the check engine light, poor engine performance such as reduced power or hesitation, and decreased fuel efficiency.
How can I resolve the p0113 code in my Volvo vehicle?
To resolve the p0113 code, you can start by checking the IAT sensor and wiring for any damage or wear.
Cleaning or replacing the air filter, inspecting the intake system for blockages, and resetting the ECU after addressing the underlying issues are also recommended steps.
If unsure, consulting a qualified mechanic or automotive technician is advised.