P0113 Intake Air Temperature Circuit High Input Bank 1

Definition: The P0113 code indicates that the Powertrain Control Module (PCM) has detected a high voltage input from the intake air temperature (IAT) sensor circuit, which is located in bank 1. This typically means that the IAT sensor is reporting an unusually high temperature.

p0113 – Intake Air Temperature Circuit High Input Bank 1

Severity: Moderate

Common Causes

p0113 – Intake Air Temperature Circuit High Input Bank 1

Common Causes:

• Faulty intake air temperature sensor
• Open or short circuit in the intake air temperature sensor wiring
• Poor electrical connection related to the intake air temperature sensor
• Intake air temperature sensor connector is corroded or damaged
• Issues with the engine control module (ECM)

 

Common Misdiagnosis

OBD2 Code: P0113

Description: Intake Air Temperature Circuit High Input (Bank 1)

Common Misdiagnosis: Replacing the intake air temperature sensor without checking for wiring issues or connector problems.

 

Common Diagnostic Steps

OBD2 Code: P0113

Description: Intake Air Temperature Circuit High Input (Bank 1)

• Check for any stored trouble codes and freeze frame data using an OBD2 scanner.
• Inspect the intake air temperature sensor and its wiring for damage, disconnection, or corrosion.
• Test the intake air temperature sensor’s resistance with a multimeter to ensure it is within the manufacturer’s specifications.
• Examine the electrical connector for signs of moisture or corrosion that may affect connectivity.
• Verify that there are no vacuum leaks in the intake system that could affect sensor readings.
• If applicable, check the mass airflow sensor as it can also impact intake air temperature readings.
• Clear the code and perform a test drive to see if it returns after repairs or adjustments have been made.