Fault code P2089 – “A” camshaft position actuator control circuit high (Bank 1)

Fault code P2089 is called “”A” Camshaft Position Actuator Control Circuit High (Bank 1)” but in different programs it may be called differently. This fault designation applies to all vehicles equipped with OBD-II.

Technical description and explained code P2089

Error code P2089 is a generic error code defined as “High signal level in control circuit of camshaft position drive “A” (Bank 1)”. It is set when the PCM detects that the control voltage has risen above the maximum allowable level.

Fault code P2089 –

VVT/VCT systems use engine oil pressure to control and adjust the position of the camshafts. This is done in order to increase engine power and reduce exhaust emissions.

The position of the camshaft is monitored by a special sensor and then compared with the position of the crankshaft. Depending on operating conditions, the PCM adjusts the camshaft timing. To automatically increase engine power at certain rpm and loads.

Therefore, the oil control valve electrical circuit must be in perfect working order for the system to work properly. The input voltage and feedback voltage must be within the specified limits.

If a circuit failure occurs, the PCM cannot detect the actual camshaft deviation from the base setting. This has a serious adverse effect on engine efficiency, fuel economy, and exhaust emissions.

When the PCM detects high input voltage on the oil control valve, it realizes that it cannot effectively control the camshaft timing. This will set code P2089 and activate the warning light on the instrument panel.

This fault relates to camshaft “A” (Bank 1), which is on the engine side that contains cylinder 1.

Symptoms of vehicle malfunctions

The main signal that an error P2089 has occurred is the Malfunction Indicator Lamp (MIL) is also known as the CheckEngine Light.

It can also be warning signs such as:

  1. The “Check engine” control lamp on the control panel will light up (the code will be stored as a fault).
  2. Other related trouble codes may also be present.
  3. Floating revolutions, as well as attempts to stall at idle.
  4. There may be ignition skips in the engine cylinders. Also, the vehicle’s engine may run erratically.
  5. Increased fuel consumption.
  6. Decrease of the engine power.
  7. The engine does not accelerate well.
  8. Problems with the catalytic converter due to poor fuel combustion.
  9. There may be no symptoms other than a stored fault code.

Depending on the symptoms, code P2089 may be moderate or very serious. If the error is caused by a faulty timing drive, internal engine damage may be the result.

Factors that can cause this error code

The error code P2089 can mean that one or more of the following problems have occurred:

  • Failure of the camshaft camshaft solenoid valve.
  • Short-circuited, corroded or damaged electrical wiring or connectors.
  • Fuse or fusible link is blown.
  • Worn timing belt or chain.
  • Timing belt or timing chain is worn.
  • Engine oil deposits (due to lack of oil changes).
  • Clogged oil passages.
  • Excessively low engine oil level.
  • Sometimes faulty PCM module is the cause.

How to fix or reset OBD-2 code P2089

Some suggested steps for troubleshooting and fix the error code P2089:

  1. Connect an OBD-II scanner to the vehicle’s diagnostic connector and read all stored data and error codes.
  2. Clear the errors from the computer memory and test-drive the vehicle to see if code P2089 appears again.
  3. If the fault appears again, check the oil level and pressure.
  4. Check the timing components for proper installation and no damage.
  5. Inspect electrical wires and connectors, and repair faulty ones if necessary.
  6. Check the operation of the camshaft and crankshaft position sensors using a scanner.
  7. Check the camshaft timing solenoid valve.
  8. If no problems are found, check the PCM module.

Diagnose and repair of problems

First it is necessary to read all stored data and error codes with an OBD-II scanner. In order to determine when and under what circumstances this error occurred.

Then it is necessary to clear the error codes from the PCM memory and test-drive the vehicle. This will help find out if code P2089 appears again and if the error is intermittent.

After that, you need to check the oil level and condition, the correct pressure plays a key role in the functioning of this circuit. Then locate all components of the electrical circuit and perform a thorough visual inspection.

Check the wiring for obvious defects such as scuffs, scuffs, exposed wires, or melted areas. Next, check the connectors for safety, corrosion, and damaged contacts.

Testing the wiring

If the code persists, prepare to perform resistance tests on all associated wiring. Be sure to disconnect the sensor and its wiring from the PCM to avoid damaging the controller during the resistance test.

Compare all readings with those in the manual, and repair or replace if necessary. In addition to the wiring, check the oil control valve and the camshaft and crankshaft position sensors.

Clear all codes after repairs are completed and test drive before re-scanning the system to see if the malfunction has returned.

If code P2089 does not return, the repair can be considered successful. However, if the code does return, you may have a faulty PCM, or an intermittent fault that was not corrected during diagnosis.

On which vehicles does this problem occur most frequently

Fault code P2089 can occur on different vehicles but there are statistics on which brands this occurs most often. Here is a list of some of them:

  • Audi (A6)
  • BMW
  • Cadillac
  • Chevrolet (Cruze, Malibu)
  • Dodge
  • GMC
  • Mazda (3, 6, CX-7)
  • Mercedes-Benz (Sprinter)
  • Peugeot (308)
  • Porsche (Cayenne)
  • Subaru (Tribeca)
  • Volkswagen (Passat, Tiguan)

Fault code P2089 can sometimes be found with other errors. The most common are the following: P0010, P2088, P2090, P2091, P2092, P2093, P2094, P2095.


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