P02E3 Intake Air Flow Valve Control Circuit High Voltage

OBD2 Code: P02E3

Description: Intake Air Flow Valve Control Circuit High Voltage

Definition: This code indicates that the intake air flow valve control circuit is experiencing a high voltage condition, which means the voltage in the circuit is higher than expected by the vehicle’s powertrain control module (PCM). This can be due to wiring issues, a faulty valve, or problems with the PCM itself.

p02e3 – Intake Air Flow Valve Control Circuit High Voltage

Typical Severity: Moderate

Common Causes

P02E3 – Intake Air Flow Valve Control Circuit High Voltage

Common Causes:

• Faulty intake air flow valve
• Short circuit in the intake air flow valve control circuit
• Open circuit in the intake air flow valve control circuit
• Corrosion or poor connections in the wiring related to the intake air flow valve control circuit
• Faulty engine control module (ECM)

 

Common Misdiagnosis

OBD2 Code: P02E3

Description: Intake Air Flow Valve Control Circuit High Voltage

Common Misdiagnosis: Replacing the intake air flow valve without checking for wiring issues or a faulty control module.

 

Common Diagnostic Steps

OBD2 Code: P02E3

Description: Intake Air Flow Valve Control Circuit High Voltage

• Check for any stored trouble codes and freeze frame data using an OBD2 scanner.
• Inspect the intake air flow valve and related wiring for signs of damage or corrosion.
• Test the voltage at the intake air flow valve connector to ensure it is within manufacturer specifications.
• Examine the intake air flow valve control circuit for any short circuits or open connections.
• Verify that the powertrain control module (PCM) is functioning correctly and sending appropriate signals to the intake air flow valve.
• If applicable, update or reprogram the PCM with the latest software from the vehicle manufacturer.
• Replace any faulty components, such as a damaged intake air flow valve or defective wiring, as necessary.
• Clear all trouble codes and test drive the vehicle to confirm that P02E3 does not return.