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?

A P0020 code refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module). 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

Need more help?

If you still need help regarding the P0020 trouble code, please post your question in our auto repair forums.

NOTE: This information is presented for information purposes only. It is not intended as repair advice and we are not responsible for any actions you take on any vehicle. All information on this site is copyright protected. If you want to share this article or information with others, please link to this page, don't copy and paste it elsewhere.