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AutoCodes – Generic – P2432

P2432 Code - Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1

Quick Answer

The Secondary Air Injection (AIR) System aids in the reduction of hydrocarbon exhaust emissions during a cold start-up. Common causes include Faulty AIR Pressure Sensor, AIR Pressure Sensor harness is open or shorted, AIR 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
P2432 indicates Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1.
Common causes
Common causes include Faulty AIR Pressure Sensor, AIR Pressure Sensor harness is open or shorted, AIR 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 44,622
How popular is this code, among other codes? Medium
What is this?
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2432 Description

The Secondary Air Injection (AIR) System aids in the reduction of hydrocarbon exhaust emissions during a cold start-up. This occurs when the start-up engine coolant temperature (ECT) is between 5-50°C (41-122°F), and the intake air temperature (IAT) is between 5-60°C (41-140°F). The AIR pump operates 5-60 seconds after start-up.
The Powertrain Control Module (PCM) activates the AIR system by simultaneously supplying grounds to the AIR pump and the AIR valve relays. This action closes the relays' internal contacts. The AIR pump and the AIR control solenoid valve/pressure sensor assembly are in turn energized, the pump runs and the control/shut-off valve opens.
The AIR pump sends pressurized fresh air into the pipes/hoses through the open control/shut-off valve, and into the exhaust manifold. The extra air accelerates the catalyst operation, helping it to reach operating temperature faster. The AIR pump remains ON for a short period of time after the control/shut-off valve is commanded OFF. When the AIR pump is commanded OFF it will not run or be activated until the next vehicle start. When the AIR system is inactive, the closed AIR control/shut-off valve prevents air/exhaust flow in either direction.
The AIR system pressure sensor is used to monitor pressure at the AIR control solenoid valve/pressure sensor assembly inlet during the commanded ON/OFF states.
OBDII Code P2432 - Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1 - AutoCodes.com
P2432 Code - Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
What does this mean?

What are the Possible Causes of the DTC P2432?

  • Faulty AIR Pressure Sensor
  • AIR Pressure Sensor harness is open or shorted
  • AIR Pressure Sensor circuit poor electrical connection

How to Fix the DTC P2432?

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 P2432 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.

Need more information about the P2432 code?

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Need Help with the Code?

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Information for Specific Makes

  • P2432 Audi — Secondary Air Injection System Air Flow/Pressure Bank 1 Sensor Circuit Low
  • P2432 Buick — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Cadillac — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Chevrolet — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Chrysler — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Dodge — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 GMC — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Jeep — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Lexus — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Pontiac — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 RAM — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Saturn — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Scion — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Toyota — Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
  • P2432 Volkswagen — Secondary Air Injection System Air Flow/Pressure Bank 1 Sensor Circuit Low
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.

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