P0475 Code- Exhaust Pressure Control Valve Malfunction 'A'

What Does P0475 Mean?

OBD-II Code Powertrain Control Module (PCM) failure is defined as a Exhaust Pressure Control Valve "A"

The Exhaust Pressure Control Valve controls exhaust back pressure during engine warmup. If the engine control module (PCM) determines there is an incorrect signal from the Exhaust Pressure Control Valve, the PCM will set code P0475.

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What are the common causes of P0475 ?

There may be more than one cause for the P0475 code. One is a faulty exhaust back pressure valve. Another cause may be that the exhaust back pressure valve is shorted out or open. You may also have a poor electrical connection on your exhaust back pressure valve.

How do you troubleshoot P0475 ?

The engine system, in conjuction with the engine control module (ECM)/powertrain control module (PCM), activates the P0475 code solenoid valve to control oil pressure to the engine mechanism that is installed in the valve system to switch valve timing between Low and High.If the engine solenoid valve has an open or short circuit, a DTC is stored.



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