What is the code P0412 on a Toyota Tundra?

About Code P0412 on a Toyota Tundra
The P0412 code on a Toyota Tundra relates to the Secondary Air Injection System Switching Valve ‘A’ Circuit Malfunction. This code is typically associated with the AIR vacuum control solenoid circuit not operating as desired by the PCM. The specific diagnosis time and labor rates at auto repair shops can vary, but it generally requires about 1.0 hour of labor for diagnosis. The cost to diagnose the P0412 code is typically between $75 and $150 per hour at most auto repair shops .
Symptoms and Causes
The possible symptoms of the P0412 code include the engine light being on or the service engine soon warning light. The code can be activated by conditions such as an open or short in the optical sensor circuit, a damaged optical sensor, a damaged PCM or ECM, or missing high-resolution pulses from the optical sensor to the PCM.
Repair and Diagnosis
To diagnose the specific cause for the P0412 code, it’s recommended to seek professional assistance. Certified mobile mechanics can perform a Check Engine Light diagnostic for this code. Additionally, the code is associated with a problem in the air injection system driver in the ECM, which may require thorough diagnosis by a mechanic.
Conclusion
The P0412 code on a Toyota Tundra is related to the Secondary Air Injection System Switching Valve ‘A’ Circuit Malfunction. It’s important to have the specific cause diagnosed by a professional to address this issue effectively.

What is the code P0412 on a Tacoma?

The p0412 trouble code is associated with secondary air injection system switching valve circuit indicating a circuit issue with the switching valve in the secondary air injection.

What is the code P2441 on a Toyota Tundra?

What Does the P2441 Code Mean? Diagnostic trouble code (DTC) P2441 code means “Secondary Air Injection System Switching Valve Stuck Closed Bank 1.” The powertrain control module (PCM) triggers the P2441 code when it detects problems with the secondary air injection system’s switching valve.

Where is the secondary air valve located at?

Secondary-air valves are fitted between the secondary-air pump and the exhaust manifold. Use is made of different versions. The secondary-air non-return valve stops exhaust gas, condensate or pressure peaks in the exhaust system (e.g. misfiring) causing damage to the secondary-air pump.

What does engine code P0412 mean?

P0412 code means ‘Secondary Air Injection System Switching Valve A Circuit Malfunction. ‘ The Check Engine Light illuminates when the code activates in your car. The engine will run rich, and the acceleration becomes poor.

What does air injection control valve do?

An air injection check valve prevents exhaust gases from entering the air injection system. The secondary air injection (AIR) system supplies air to the exhaust manifolds, the catalytic converter, or both at different times. The additional air helps reduce harmful exhaust gases through oxidation.

What is code P2442 on 2007 Toyota Tundra?

Code P2442 may appear on some Toyota vehicles. On a 2007 Toyota Tundra 4.7L V8, for example, the code appears because of the following conditions: Vacuum switching valve has failed. Vacuum switching valve control circuit is open or shorted.

How does secondary air injection work?

Secondary air injection (commonly known as air injection) is a vehicle emissions control strategy introduced in 1966, wherein fresh air is injected into the exhaust stream to allow for a fuller secondary combustion of exhaust gases.

What is the code po419 on a Toyota Tundra?

What does OBD-II fault code P0419 mean? The Secondary Air Injection System pumps outside fresh air into the Exhaust System during cold engine start up. This additional air helps burn up the highly rich exhaust emissions that are produced when the engine is warming up.

What is the code P0412 on a Chevy Venture?

Code P0412 is a problem with the air injection system driver in the ECM cannot turn on the air pump to test it during startup. A shorted air injection pump circuit can short out the air injection driver in the ECM and should be considered when diagnosing the problem.

What is the code for secondary air check valve?

Diagnostic trouble code (DTC) P2440 stands for “Secondary Air Injection System Switching Valve Stuck Open.” The code is logged once the PCM detects an issue with the secondary air-injection system that could point to a valve that’s stuck open.