P0020 "A" Camshaft Position Actuator Circuit (Bank 2) Trouble Code

P0020 - "B" Camshaft Position Actuator Circuit (Bank 2)

OBD-II Trouble Code Technical Description

"B" Camshaft Position Actuator Circuit (Bank 2)

What does that mean?

This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles, including but not limited to Toyota, VW, Ford, Dodge, Honda, Chevrolet, Hyundai, Audi, Acura, etc.

A P0020 code refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module) or ECM (engine control module). VVT is a technology used in the engine to allow it to get greater power or efficiency at different running points.

 

That consists of an oil control valve (OCV), also called a solenoid valve and other components. Basically the check engine light and associated P0020 trouble code means that the voltage in the circuit has fallen below a set limit for a specific amount of time (varies by make/model/engine). Bank 2 is the side of the engine that doesn't contain cylinder #1.

Note: This DTC is nearly identical to P0010

Symptoms

Symptoms may include: Check Engine Light illuminated (Malfunction Indicator Lamp) Rough running other symptoms may also be present

Causes

A code P0020 may mean that one or more of the following has happened:

Faulty oil control valve (OCV) Open or short in the VVT/VCT circuit Open or short in the OCV / solenoid valve Damaged computer (PCM)

Possible Solutions

Some recommended troubleshooting and repair steps are:

Carefully inspect the Bank 2 VVT/VCT system circuit wiring and connectors, repair as required With a warm engine, test the operation of the OCV, replace/repair as needed

Other camshaft DTC codes: P0010 - P0011 - P0012 - P0021 - P0022

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