P0020 OBD-II Trouble Code: Camshaft Position (A) Actuator Circuit (Bank 2)

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0020 code

P0020 is a diagnostic trouble code (DTC) for "Camshaft Position (A) Actuator Circuit (Bank 2)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0020 DIAGNOSTIC Get a fair and transparent estimate upfront

P0020 code definition

Camshaft Position (A) Actuator Circuit (Bank 2)

What the P0020 code means

P0020 is the OBD-II generic code indicating that the engine control module (ECM) has determined that the bank 2 intake camshaft Oil Control Valve (OCV) has an open or short circuit. This happens during one drive cycle.

What causes the P0020 code?

  • The ECM has commanded the OCV to less than 80% duty cycle and output is 100%.
  • The ECM has commanded the OCV up to 70% and output is less than 3%.
  • The OCV or wiring to the bank 1 exhaust camshaft may be shorted out.
  • The OCV may have an open circuit or the wiring is open.

What are the symptoms of the P0020 code?

  • The Check Engine Light will come on.
  • The engine may have a hard start condition if OCV is shorted.
  • The engine will have a reduction in fuel mileage if the OCV is shorted or open.
  • The engine may run rough, hesitate or stall depending on if it has shorted or if it has an open OCV circuit.

Note: The symptoms will change depending on the camshaft position when the Variable Valve Timing (VVT) system stopped working.

How does a mechanic diagnose the P0020 code?

  • Visually checks the electrical connectors, wiring and OCV for any problems
  • Checks the computer codes then documents the freeze frame data for the code
  • The vehicle is tested to see if the codes come back
  • Checks OCV for correct resistance of approximately 6.9 to 7.9 ohms
  • Traces and repairs any shorts or open circuits in the wiring
  • Checks the system following manufacturer's pinpoint tests

Note: Follow the manufacturer's recommended pinpoint test to narrow down the problem if above checks do not narrow the problem down.

Common mistakes when diagnosing the P0020 code

Follow these simple guidelines to help with diagnosis to prevent mistakes:

  • Do a visual inspection for common problems like checking to see if electrical connectors are connected.

  • Check engine oil for the proper viscosity and that it is not sludged up.

  • Verify that failure codes are present before attempting repairs.

  • Always follow the manufacturer's procedures to prevent replacing good components or misdiagnosing the trouble code.

How serious is the P0020 code?

  • The engine may hesitate on acceleration.
  • The engine fuel consumption may get worse.
  • The engine may get carbon buildup on the valves and piston rings if repairs are not done as soon as possible.

What repairs can fix the P0020 code?

  • Clearing the fault codes and testing the system to verify the code
  • Repairing or replacing the wiring to the intake camshaft oil control valve for bank 2
  • Replacing the camshaft oil control valve for bank 2 intake camshaft
  • Replacing the ECM if directed from pinpoint tests

Additional comments for consideration regarding the P0020 code

The code can be caused by the OCV having an internal short circuit or an open circuit. The code may be accompanied with code P0021 or P0022.

Need help with a P0020 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

Check Engine Light
P0020
trouble codes

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0020 code.

SCHEDULE P0020 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(6,328)

Rating Summary
5,857
225
52
35
159
5,857
225
52
35
159

Gustavo

17 years of experience
296 reviews
Gustavo
17 years of experience
Toyota Corolla - Check Engine Light is on - New Braunfels, Texas
As always, punctual and professional. He explains the problem thoroughly. I feel confident in his work and knowledge.

Greg

22 years of experience
86 reviews
Greg
22 years of experience
Mazda 3 - Check Engine Light is on - Queen Creek, Arizona
Greg was scheduled for 1:00 but he was able to come earlier and let us know right away. He was very thorough and spent his time going thru the entire car.

Gustavo

17 years of experience
296 reviews
Gustavo
17 years of experience
Lincoln Aviator - Check Engine Light is on - San Antonio, Texas
Made call before appt. -courteous-knowledgeable-got part need & did prompt repair after computer check.

Claud

8 years of experience
325 reviews
Claud
8 years of experience
Chevrolet Trax - Check Engine Light is on - Grosse Pointe, Michigan
Very good experience. He arrived on time. Explained what he was going to do. Completed the work and was thorough in what I needed for my next service in plain language vs car jargon. I'm a raving fan of Claud!


More related articles

P2111 OBD-II Trouble Code: Throttle Actuator Control System - Stuck Open
P2111 trouble code definition Throttle Actuator Control System - Stuck Open What the P2111 code means In this case the code definition...
P0973 OBD-II Trouble Code: Shift Solenoid A Control Circuit Low
P0973 means there is an error with the shift solenoid A control circuit due to a faulty solenoid, control circuit,or low or dirty transmission fluid.
P0689 OBD-II Trouble Code: ECM/PCM Power Relay Sense Circuit Low
P0689 means that the relay control switch to the PCM is sending a voltage signal that not normal due a defective PCM, battery or electrical issues.

Related questions

Pcv valve problem

Hello. In most case a PCV valve should not noticeably rattle, though that varies from engine to engine. If it appears to be rattling excessively that could signify that the PCV valve is not secured properly, that there is a...

Car reads "Pressure Control Valve 3V". I believe it has to do with a solenoid.

Hello. I would need to know some more information about what you car is doing to be able to help with a diagnosis. If it is giving a pressure control code then most of the time this is caused by...

Code p0420

Hello. P0420 could be due to a variety of faults including even a fuel pump that is not supplying sufficient fuel, causing a lean condition, and hence "fooling" the O2 sensors (pre and post) as to the status (i.e., efficiency)...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com