AutoCodes – Scion – P2432 Scion

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

Quick Answer

The Secondary Air injection (AIR) system consists of an air pump, the Air Switching Valve (ASV), a pressure sensor, the Air Injection Control Driver (AID) and the Engine Control Module (ECM). Common causes include Faulty Pressure Sensor, Pressure Sensor harness is open or shorted, 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 Scion indicates Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1.
Common causes
Common causes include Faulty Pressure Sensor, Pressure Sensor harness is open or shorted, 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,391
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2432 Scion Description

The Secondary Air injection (AIR) system consists of an air pump, the Air Switching Valve (ASV), a pressure sensor, the Air Injection Control Driver (AID) and the Engine Control Module (ECM). For a short time after cold engine starts, the AIR system pumps secondary air to the exhaust port of the cylinder head to purify the exhaust emissions. The secondary air is supplied by the air pump and is pumped to the exhaust port through the ASV.
The AID drives the ASV and the air pump according to command signals transmitted by the ECM. The pressure sensor detects the pressure in the secondary air passage when the AIR system is ON and OFF, and transmits pressure signal to the ECM.
The AID is not only equipped to drive the pump and valve, but also with a diagnosis function to detect malfunctions in the AIR system circuit.
HINT: As a large current is required to drive the air pump and ASV, an AID has been added to the previous system.
OBDII Code P2432 Scion - Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1 - AutoCodes.com
P2432 Scion Code - Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1

What are the Possible Causes of the DTC P2432 Scion?

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

How to Fix the DTC P2432 Scion?

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 Scion 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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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 P2432 Scion Code

What does the OBDII code P2432 mean for a Scion?

P2432 indicates that the Secondary Air Injection System's air flow or pressure sensor circuit on Bank 1 is reporting a low voltage, suggesting an issue with the sensor or its circuit.

What are the common symptoms of code P2432 in a Scion?

Symptoms may include the check engine light turning on, reduced engine performance, rough idling, and possible increased emissions during cold starts.

What causes the P2432 code to appear in a Scion?

Common causes include a faulty air flow/pressure sensor, wiring or connector issues, a malfunctioning secondary air pump, or clogs in the secondary air injection system.

How is the P2432 code diagnosed in a Scion?

A mechanic will check for related codes, visually inspect the wiring and connectors, test the air flow/pressure sensor, and verify the operation of the secondary air pump.

Can a faulty sensor cause the P2432 code?

Yes, a defective secondary air injection air flow/pressure sensor is a primary cause of the P2432 code.

How can I fix the P2432 code on my Scion?

Repairs may include replacing the air flow/pressure sensor, repairing damaged wiring or connectors, cleaning clogged air injection lines, or replacing the secondary air pump if necessary.

Is it safe to drive with a P2432 code on a Scion?

While the vehicle may still be drivable, ignoring the issue can lead to increased emissions, reduced performance, and potential damage to the secondary air injection system.

How much does it cost to fix a P2432 code on a Scion?

Repairs can range from $100 to $500 or more, depending on whether the issue is a simple wiring repair or a more expensive part replacement like the air pump or sensor.

Can a dirty air filter cause the P2432 code?

While unlikely, a severely clogged air filter could potentially restrict airflow and indirectly contribute to secondary air injection system issues.

Does the P2432 code affect emissions testing?

Yes, a P2432 code can cause your vehicle to fail an emissions test due to improper operation of the secondary air injection system.

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