What Does the P0113 Code Mean?
OBD-II Code P0113 is defined as an Intake Air Temperature Circuit High Input. This means that the voltage signal sent to the Powertrain Control Module (PCM) from the Intake Air Temperature Sensor is exceeding the normal range, which is typically above 4.5 volts.
What Causes the P0113 Code?
The P0113 code can be triggered by several factors, including:
- Defective Intake Air Temperature Sensor
- Dirty air filter
- Defective Mass Air Flow Sensor
- Faulty or corroded wiring or connections related to the Intake Air Temperature Sensor
What Are the Symptoms of the P0113 Code?
Common symptoms associated with the P0113 code include:
- Illumination of the Check Engine Light
- Hard starting issues
- Poor fuel economy
- Poor engine performance or hesitation during acceleration
How Serious Is the P0113 Code?
The P0113 code is considered moderate in severity. While it may not pose an immediate threat to vehicle safety or functionality, it is advisable to have it diagnosed in a timely manner to prevent further complications and maintain optimal vehicle performance.
How to Diagnose the P0113 Code
To diagnose the P0113 code, technicians typically follow these steps:
- Record freeze frame information and duplicate the code setting conditions with a test drive.
- Pay attention to engine load, throttle position, RPM, and road speed while monitoring the Intake Air Temperature Sensor PID.
- Compare the IAT readings to the Coolant Temperature Sensor readings, ensuring they move in tandem.
- Check the IAT sensor connector with the key on and the engine off for a steady 5-volt reference voltage and a good ground.
- Perform a voltage output test of the IAT sensor, possibly using a heat gun to monitor changes in readings.
Common Repairs for the P0113 Code
Common repairs to fix the P0113 code may include:
- Replacing a defective Intake Air Temperature Sensor
- Cleaning or replacing a dirty air filter
- Replacing a faulty Mass Air Flow Sensor
- Repairing or replacing corroded wiring or connections related to the IAT sensor
How Much Does It Cost to Fix the P0113 Code?
The cost to repair the P0113 code can vary significantly based on the underlying cause. Typical costs range from $100 to $400, depending on whether you need to replace the sensor, repair wiring, or perform other related repairs.
Can I Fix the P0113 Code Myself?
If you possess the necessary tools and skills, you may be able to diagnose and repair the P0113 code yourself. However, for complex issues, especially those involving wiring or sensor replacement, it may be best to seek professional assistance to ensure the problem is resolved correctly.
