Guide To P3471 OBD Error Code Solutions

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The trouble code P3471 can be explained as Cylinder 9 Exhaust Valve Control Circuit Low. The Cylinder 9 exhaust valve control circuit is being monitored by the engine control module. This trouble code would be set by the ECM when the Cylinder 9 exhaust valve control circuit signal would not be as per the specifications set by the manufacturer. The cylinder deactivation would be accomplished by not allowing the intake and exhaust valves to open on the selected cylinders by utilizing special valve lifters. There are spring loaded locking pins in the deactivation lifters which would connect the internal pin housing of the lifter to the outer housing.

There are a number of fuel and emissions standards, so to meet that lot of manufacturers are using the cylinder deactivation systems. This system would allow the engine control module (PCM) to disable select cylinders when extra power is not required from the engine, such as at idle or when cruising on the highway. Now if the engine control module (PCM) would decide that the intake valve for cylinder number three is not turning on or off the way is being commanded, then the powertrain control module would set up this trouble code. This can happen because of a lot of reasons and the mechanic should diagnose the specific cause for this code.

What causes this problem with the Cylinder 9 Exhaust Valve Control Circuit Low?

• Quirks in the variable valve timing solenoid
• The oil pressure might be little
• Small oil passage
• Defects in the camshaft actuator
• The timing chain or timing belt might not be adjusted properly
• Some issues related to the engine mechanical condition
• Flaws in the wiring
• Defective connector
• The ECM might be flawed

1. Engine Control Module - ECM faults are rare but can be a big problem as faulty ECM will cause wrong vehicle operations and can also result in wrong OBD codes getting stored in the system which can also cause misdiagnosis. Thus, replace faulty ECM components now!
2. Electronic Control Unit - The ECU coordinates with the temperature sensor to control the blower fan for keeping the battery temperatures under control. So, replace faulty ECU components now!
3. Engine Wiring Harness - Most of the time, a particular component doesn’t work properly due to faulty wiring and connectors. These need to be replaced immediately as it can easily solve any OBD code problem. Buy and replace faulty engine wiring harness today!
4. Exhaust System Parts - A burning smell of the engine is likely to be seen as soon as there is a fault in any of the exhaust system parts. Also, performance issues are likely to arise due to a failure in the exhaust manifold. A leak or crack also leads to a reduction in the power, acceleration and efficiency of the vehicle. Repair or replace now.
5. Powertrain Control Module - Check for PCM error which might be due to circuit faults that might require complete replacement and reprogramming. Replace it now!
6. Diagnostic Tool - In order to detect the error, one needs high grade diagnostic tools. Visit us today to grab amazing deals.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P3471 here:

Common Symptoms

• Appearance of the service engine soon light
• Some issues related to the engine misfires
• Decline in the fuel economy
• Rise in the fuel consumption
• Inferior acceleration

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• It is essential to clean the corrosion from connectors
• Oil and filter should be changed
• Repair or replace the quirky solenoid
• Rehabilitate the defaults in the exhaust valve control solenoid
• It is necessary to clean the blocked oil passages

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Here are some steps which you should follow in order to diagnose this fault code:

• You can always inspect for technical service bulletins which pertain to the vehicle, symptoms, and codes.
• In some circumstances this can save a lot of time in the long run by pointing you in the right direction.
• Then next step is to inspect the condition of the engine oil and then confirm it is serviced to the appropriate level.
• After that all the components which are related with the cylinder 9 exhaust valve control circuit should be located and then search for obvious physical damage.
• It all depends upon the particular vehicle and this circuit may incorporate several components including the deactivation solenoid, switches, fault indicators and the ECM.
• A proper visual inspection should be performed to inspect the related wiring for obvious defects such as scraping, rubbing, bare wires, or burn spots.
• Then examine the connectors and connections for security, corrosion and faulty pins. This process should include all wiring connectors and connections to all constituents including the engine control module.
• You can always consult the particular tech data for the automobile to check the configuration of the Cylinder 9 exhaust valve control circuit and confirm every component incorporated within the circuit which may include a fuse or a fuse-able link.
• Then make sure the fluid level is correct and inspect the condition of the fluid for contamination.
• After that perform visual inspection to check the associated wiring for obvious defects such as scraping, rubbing, bare wires, or burn spots should be performed.
• Next is to check the connectors and connections for security, corrosion and damaged pins. This process must include all wiring and connectors to the transmission solenoids, transmission pump and the PCM.
• It depends upon the configuration; the transmission linkage should be inspected for security and binding issues.
• The advanced steps become very vehicle specific and require the appropriate advanced equipment to perform accurately.
• These procedures require a digital multimeter and the specific technical references for the vehicle.
• Voltage requirements will vary based of the specific year and model of the vehicle. You should follow the specific troubleshooting chart for your vehicle.
• Continuity checks should always be performed with the power removed from the circuit and the normal readings for wiring and connections should be 0 ohms of resistance unless otherwise specified by the technical data.
• Resistance or no continuity is an indication of faulty wiring that is open or shorted and must be repaired or replaced.

Common Mistakes When Diagnosing The P3471 Code

• Powertrain control module might start failing
• Less engine oil level
• Some issues related to the variable valve timing solenoid
• Issues with the car wiring