P0097 Fault Code

Intake Air Temperature Sensor 2 Circuit Low Bank 1

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

The P0097 fault code indicates a problem with the Intake Air Temperature Sensor 2 circuit on Bank 1, reporting a low voltage. This sensor helps the engine control module (ECM) monitor the temperature of the air entering the engine for combustion. When the sensor circuit reports a lower than expected temperature reading, it can lead to issues with fuel efficiency, exhaust emissions, and overall engine performance.

Common causes of this fault code include a faulty Intake Air Temperature Sensor, damaged wiring or connectors in the sensor circuit, or a problem with the ECM itself. To address the P0097 code, it is recommended to:

1. Inspect the Intake Air Temperature Sensor and its wiring for any signs of damage or corrosion.
2. Test the sensor's resistance and voltage output to determine if it is functioning correctly.
3. Check the wiring and connectors for any shorts or open circuits that may be causing the low voltage reading.
4. Clear the fault code with a diagnostic scanner and see if it returns after addressing any underlying issues.

By diagnosing and fixing the root cause of the P0097 fault code, you can ensure that the Intake Air Temperature Sensor 2 circuit on Bank 1 is operating properly, leading to improved engine performance and efficiency.

What are the symptoms of the P0097 code?

• Check engine light illuminated
• Decreased fuel efficiency
• Rough idling
• Engine knocking or pinging
• Engine stalling or hesitation

What causes the P0097 code?

When the P0097 fault code appears in a car, it is typically caused by the following reasons:

• Faulty intake air temperature sensor 2
• Intake air temperature sensor 2 circuit is shorted or grounded
• Wiring issues such as damaged or corroded connections
• Faulty engine control module (ECM)

These issues can result in the intake air temperature sensor 2 circuit reading lower than normal, triggering the P0097 fault code to be stored in the vehicle's system.

How to fix P0097?

P0097 - Intake Air Temperature Sensor 2 Circuit Low Bank 1

Possible causes:

• Faulty intake air temperature sensor
• Intake air temperature sensor harness is open or shorted
• Intake air temperature sensor circuit poor electrical connection

How to fix:

1. Check the intake air temperature sensor for any visible damage or corrosion. Replace if necessary.
2. Inspect the wiring harness connected to the intake air temperature sensor for any signs of damage, open circuits, or shorts. Repair or replace as needed.
3. Ensure that the intake air temperature sensor is properly connected and there are no loose or damaged electrical connections.
4. Clear the fault codes with an OBD-II scanner and see if the P0097 code returns. If it does, further diagnostics may be required to pinpoint the exact issue.