AutoCodes – Chevrolet – P2437 Chevrolet

P2437 Chevrolet Code - Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2

Quick Answer

The secondary air injection system aids in the reduction of hydrocarbon emissions during a cold start. Common causes include Faulty Secondary Air Injection System Pressure Sensor, Secondary Air Injection System Pressure Sensor harness is open or shorted, Secondary Air Injection System Pressure Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2437 Chevrolet indicates Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2.
Common causes: Common causes include Faulty Secondary Air Injection System Pressure Sensor, Secondary Air Injection System Pressure Sensor harness is open or shorted, Secondary Air Injection System Pressure Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,003

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 25, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2437 Chevrolet Description

The secondary air injection system aids in the reduction of hydrocarbon emissions during a cold start. The electric air pump forces fresh air into the exhaust stream in order to accelerate the catalyst operation. Secondary air injection pressure sensors, which are integral to the shutoff and check valves, are used to monitor the air flow from the secondary air injection pump. The Engine Control Module (ECM) supplies voltage to the 5 V reference circuits and provides a ground for the low reference circuits. The sensors provide a signal voltage to the ECM relative to the pressure changes within the secondary air injection system.
The Diagnostic Trouble Code (DTC) will set when the ECM detects that the corresponding bank 2 secondary air injection pressure sensor signal is out of specifications.

OBDII Code P2437 Chevrolet - Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2 - AutoCodes.com — P2437 Chevrolet Code - Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2

What does this mean?

What are the Possible Causes of the DTC P2437 Chevrolet?

Faulty Secondary Air Injection System Pressure Sensor
Secondary Air Injection System Pressure Sensor harness is open or shorted
Secondary Air Injection System Pressure Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2437 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2437 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need Help with the Code?

Get the P2437 Chevrolet code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2437 Chevrolet Code

1. What are the common symptoms of OBDII code P2437 in a Chevrolet related to the Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2?

- Common symptoms may include rough idling, engine misfires, decreased fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of the OBDII code P2437 in a Chevrolet indicating an issue with the Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2?

- Possible causes can include a faulty pressure sensor, damaged wiring or connectors in the circuit, a malfunctioning secondary air injection pump, or a problem with the powertrain control module.

3. Can driving with the OBDII code P2437 triggered in a Chevrolet cause further damage to the vehicle?

- Continuing to drive with this code may result in reduced engine performance, increased emissions, and potential damage to other components in the secondary air injection system.

4. How can I diagnose and repair OBDII code P2437 in my Chevrolet associated with the Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2?

- Diagnosis typically involves checking the pressure sensor, inspecting the wiring and connectors, testing the secondary air injection pump, and scanning the powertrain control module for any related faults. Repair may involve replacing the faulty components, repairing damaged wiring, or resetting the code after fixing the issue.

5. Is it safe to reset the OBDII code P2437 in a Chevrolet without addressing the underlying problem with the Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2?

- It is not recommended to simply reset the code without fixing the root cause, as the issue may persist and potentially lead to more severe problems down the line.

6. How much does it typically cost to repair OBDII code P2437 in a Chevrolet due to the Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2?

- The cost of repair can vary depending on the specific issue causing the code, but it may range from around $200 to $600, including parts and labor.

7. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P2437 in a Chevrolet associated with the Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2?

- Some simple tasks like checking for loose connections or damaged wiring may be within reach for a DIY enthusiast, but diagnosing and repairing more complex issues related to the pressure sensor or pump may require professional assistance.

8. How long can I safely drive my Chevrolet with the OBDII code P2437 triggered for the Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2 before getting it repaired?

- It is advisable to address the issue promptly to prevent any further damage or performance issues. Driving with the code triggered for an extended period is not recommended.

9. Are there any recalls or technical service bulletins related to OBDII code P2437 in Chevrolet vehicles regarding the Secondary Air Injection System Pressure Sensor Circuit Low Voltage Bank 2?

- It is recommended to check with a Chevrolet dealership or visit the manufacturer's website to see if there are any recalls or technical service bulletins related to this specific OBDII code for your vehicle.

10. Will the OBDII code P2437 in a Chevrolet affect the vehicle's emissions compliance or cause it to fail an emissions test?

- Yes, the presence of this code may impact the vehicle's emissions compliance and could potentially cause it to fail an emissions test, depending on the severity of the issue and local regulations.