P2654 OBD Error Code: Problem & Solutions

<<See All OBD Codes

Curious to know more about the error code P2654? Then you have landed at just the right place! We have written down here all that you need to know about the error code. The engine control module plays the role of regulating the rocker arm actuator so that the oil hydraulic circuit can be controlled. It can be seen that the oil flows via the rocker arm actuator to the variable valve timing system. This helps in adjusting the engine’s valve timing.

If you want to enhance the engine’s performance, fuel economy or the emissions, the variable valve timing should be utilized. The engine control module constantly monitors the rocker arm actuator circuit and stores the error code P2654 as soon as the ‘B’ rocker arm actuator circuit isn’t according to the manufacturers specifications.

What causes this problem with the Rocker Arm Actuator Control Circuit High Bank 1 ?

• Less or excessively increased engine oil
• Faulty engine oil type
• Failed ‘B’ rocker arm actuator ‘B’
• The harness in the rocker arm actuator short circuited or loose
• Bad electrical connection in the ‘B’ rocker arm actuator circuit

1. Engine Control Module - Are you facing problems in starting your vehicle? Also, problems concerning the overall functionality of the vehicle? Well, it could all be due to a malfunctioning engine control module. Change or repair now.
2. Engine Oil - Do you know how damaging wrong type of engine oil can be? Yes, it can hamper complete operations of the engine leading to bad engine performance. Restore it immediately before it's too late.
3. Rocker Arm - Rocker arms are found in between the pushrod and the intake and exhaust valves. They enable the pushrods to push up on the rocker arms and push down on the valves. Mend or restore a faulty rocker arm immediately. Log into Parts Avatar now!
4. Hydraulic Circuit - Now get your error code P2654 fixed instantly with a new hydraulic circuit available at just the most affordable prices. We are just a click away! Tune in now!
5. Powertrain Control Module - This essential unit functions as the central auto part. A malfunctioning one can lead to sluggish engine crank, slow emissions and more fuel consumption. Get rid of the error code P2654 now by simply replacing or repairing your bad PCM.

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P2654 code by listing out some major symptoms. They are mentioned below as follows:

Common Symptoms

• Low engine performance
• More fuel consumptionn

Learn the ways with which you can correct this trouble code:

• Repair or replace the faulty ‘B’ rocker arm actuator ‘B’
• Make sure you mend or restore the harness in the rocker arm actuator that is short circuited or loose
• Amendments should be performed to fix a bad electrical connection in the ‘B’ rocker arm actuator circuit
• It is essential to check the engine oil levels and the type. Make changes as per the requirements

However, if you face any issue then we have stocked a wide range of best priced ecm, emission, electrical connector, hydraulic circuit, engine oil types and more to help you out in fixing your car.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2654 code to be stored:

The electromagnetic sensors control the crankshaft and camshaft positions. The relief holes are utilized by them present in the camshaft and crankshaft drive gears to supply signal interruption of the electromagnetic field. The PCM sees the interruptions in the electromagnetic field as square waveform patterns that represent changing degrees of voltage. Making use of the electromagnetic resistance in the 5-volt circuit these variations are created. Numerous automakers use multiple crankshaft sensors to feed divide data streams to the PCM. All these data streams offer input for engine ignition and fuel injection timing. It is notable that the engines that have multiple camshafts installed usually use a camshaft sensor for each camshaft. The cut into shafts or nodules that are permanently connected to interrupt the electromagnetic field are used by a number of automakers. Varying according to the sensor placement these notches or nodules are located near the rear or middle of the shaft.

Also, automakers at times, even place the crankshaft sensor on top of the transmission bell-housing and reads crankshaft position from interrupter holes in the flex plate. All the engine timing indicators should be properly aligned before performing an accurate diagnosis. Ensure that timing marks are aligned, test belt or chain deflection using manufacturer's schematic. If the timing components are functioning well, the VVT or VCT solenoids and circuitry should be tested. In rare cases, there maybe a PCM or sensor failure. Wherever there is oil or other corrosive fluid present, electrical wiring and connectors are more prone to fail than sensors. Many tools will be instrumental in diagnosing the code. Employ a suitable OBD-II scanner (or code reader), a digital volt/ohmmeter, and an oscilloscope to successfully diagnose this code. Then perform a visual inspection of all the wiring and connectors. A manufacturer’ service manual is essential. All the burnt or damaged wiring, connectors or electrical parts should be mended or restored. Retest the system after the repairs have been performed. In case, all the system wiring, connectors, and components (including fuses) are functioning in order, the scanner should be connected (or code reader) to the diagnostic connector and record all stored codes and freeze frame data. Record the information as it proves to be extremely helpful specially in intermittent conditions. Then clear the codes and test drive the vehicle to see if comes back. If it does not, it may be an intermittent condition. Regarding the intermittent conditions, it should be noted that these are challenging to diagnose and in extreme cases may have to be allowed to worsen before a precise diagnosis can be performed. After the connector has been disconnected from the affected sensor, check for a reference voltage signal (usually 5-volts) and a ground at the connector end (key on/engine off). Disconnect the connector from the PCM and test all circuits for resistance and continuity, if the reference voltage and/or ground are not detected. Refer to the manufacturer's service manual for wiring diagrams, technical service bulletins, and/or flow charts as it is helpful. All the circuits, connectors, or components that do not match with the manufacturer's specifications should be repaired or replaced. Now that you have performed the repairs, clear the codes and test drive the vehicle to make sure that the repair has been successful. Reconnect the sensor and use the oscilloscope to regulate the live data waveform patterns, if the reference voltage and ground signals are present.

Search for discrepancies in the waveform and restore the sensor if required. Clear the codes and test drive the vehicle to make sure that he repair is successful, now that the repairs have been performed. A defective PCM should be suspected if the wave for patterns appear to be normal. This is rare and the PCM may require a reprogramming along with replacement. Various applications require camshaft and crankshaft sensor replacement in sets also. The manual should be referred to.

Common Mistakes When Diagnosing the P2654

The most common mistakes committed is failing to follow the diagnosis protocol. Also, it is essential to pay attention to the minor repairs too while performing the major repairs. This may lead to expensive after repairs.