P2607 Fault Code

Intake Air Heater B Circuit Low

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2607 fault code indicates an issue with the intake air heater B circuit, which is responsible for warming the air entering the engine. This process enhances performance and reduces emissions, especially in colder climates. Possible problems include faulty electrical connections, a malfunctioning intake air heater, or issues within the vehicle's Engine Control Module (ECM).

What are the symptoms of the P2607 code?

Drivers may notice several symptoms when the P2607 code is present:

• Check Engine Light illuminated on the dashboard.
• Reduced engine performance, particularly on cold starts.
• Increased emissions due to improper air temperature.
• Difficulty starting the engine in cold weather conditions.

What causes the P2607 code?

Common causes of the P2607 code include:

• A short or open circuit in the intake air heater B wiring.
• A defective intake air heater element.
• Poor connections or corroded terminals in the intake air heater circuit.
• Malfunctions in the vehicle's Engine Control Module (ECM) affecting the heater's operation.

How to fix P2607?

To resolve the P2607 fault code, consider the following steps:

• Inspect the intake air heater wiring and connectors for damage or corrosion, repairing or replacing as necessary.
• Test the intake air heater for continuity to check its functioning and replace it if faulty.
• Clear the fault codes from the ECM after repairs and monitor for reoccurrence.
• If the problem persists, a thorough diagnostic of the ECM may be necessary to ensure it is functioning correctly.