Error Code P3477: What It Means & What To Do?
OBD Code P3477 - Cylinder 10 Exhaust Valve Control Circuit/Open
The
trouble code P3477 can be explicated as Cylinder 10 Exhaust Valve Control
Circuit/Open. The main role of the Cylinder 10 deactivation/intake valve
control circuit is to accommodate the cylinder deactivation feature (e.g. V4
mode of a V8 engine) to enhance the overall fuel economy during light load
operation such as highway driving. The engine control module (ECM) would
control the 4- or 8-cylinder modes of the engine by engaging the intake
deactivating solenoids for four of the engine cylinders.
Learn More About OBD Error Code P3477
It
is the engine control module which would examine the cylinder 10 exhaust valve
control circuit. This trouble code would be set by the ECM when the cylinder 10
exhaust valve control circuit signal would not be as per the parameters set by
the manufacturer.
What causes this problem with
the Cylinder 10 Exhaust Valve Control Circuit/Open?
- Defects
in the variable valve timing solenoid
- Little
oil pressure
- Confined
oil passage
- There
can be inoperative engine mechanical condition
- Imperfect
wiring
- Issue of fault connector
- Flaws
in the ECM
Replace/Repair These Parts To Fix OBD Code P3477
- Engine Control Module - The solenoid might cause a short
in the engine control module because of corrosion in the solenoid or the wire
running from the solenoid to the ECM harness.
- Engine Wiring Harness - Is your car
battery losing charge very quickly as well as frequently? Then it is an
indication that your car engine wiring harness has some major issues. Get it
inspected and replaced as soon as possible.
- Electronic Control Unit - The ECU power
management control module keeps in check the hybrid battery charging functions.
If the ECU is faulty, the battery pack will not be able to properly get charged
and thus, the ECU might need replacement.
- Exhaust System Parts - Are you seeing
this error code flashing? Well, it could be due to malfunctioning exhaust
system parts. In addition to this error code, the driver is likely to
experience a noisy engine, decrease in power and acceleration. We strongly
recommend you to purchase new exhaust system parts from Parts Avatar.
- Powertrain Control Module - A trouble with the PCM would mean that it is unable to determine the right fuel mixture and would send the car engine either more or less fuel than it requires. Now when the engine gets more, the carbon emission would increase and fuel economy would drop. In case of the opposite, the engine will choke, stutter, and might start stalling sometimes.
- Diagnostic Tool
-
Usually any OBD code problem requires deep insight into the problem and high-grade
tools in order to fix it properly. Thus, buy quality diagnostic tools form us!
Symptoms Of OBD Error Code P3477
It
is essential 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 P3477 here:
Common Symptoms
- Illumination
in the service engine soon light
- Engine
might misfire
- Increasing
fuel consumption
- Decreased engine performance
- Service
engine soon light might come into signal
How To Correct P3477 Cylinder 10 Exhaust Valve Control Circuit/Open
If
you wish to correct this fault code, then you have to follow certain steps.
Correcting a problem needs your careful attention. Here are some ways with the
help of which you will be able to correct the OBD Code P3477:
- The
oil and filter should be changed properly
- The
malfunctioning wiring should be repaired or replaced as per the need
- You
must clean the blocked oil passages
- It
is essential to clean the corrosion from connectors
- Carefully
adjust the faults in the deactivation solenoid
- Recondition the non-functioning ECM
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Easy Diagnosis Of Engine Error OBD Code P3477
If
you want to easily diagnose this trouble code, then you must follow the steps
which are mentioned here as below:
Check
for technical service bulletins which pertain to the vehicle, symptoms, and
codes prior to beginning the troubleshooting process for any malfunction. In
some circumstances this can save a lot of time in the long run by pointing you
in the right direction.
After
that the 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 10 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 10 exhaust valve control circuit and confirm every component
incorporated within the circuit which may include a fuse or a fuse-able link.
Fluid & Wiring Inspections
- The
first step is to 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.
- Advanced
Steps
- 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
- 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 P3477 Code
- Malfunctioning
powertrain control module
- There
can be a failure in the variable valve timing solenoid
- Less level of engine oil
- Wiring
problems