Error Code P0354: What It Means & What To Do?
OBD Code P0354 - Ignition Coil ?D? Primary/Secondary Circuit Malfunction
The P0354 fault code can be defined as Ignition Coil ?D?
Primary/Secondary Circuit Malfunction.
It is the ignition system which would convert the battery
voltage into the high voltage which is used to ignite the cylinder air/fuel
mixture. The side of the system which provides low voltage is called the
primary circuit. This would include the battery, ignition switch, primary coil
winding, crankshaft sensor as well as ECU. On the other hand, the high voltage
side of this system is known as secondary circuit. In the modern vehicles, it
would include the coil pack as well as the spark plugs. The low primary circuit
voltage is converted into the high secondary voltage with the help of coil pack
which is needed to fire the plugs. The coil pack is generally a transformer
which contains coils of wire inside it. In the primary side there are hundred
turns of wire while the secondary side has thousands. Current would be then
applied to the primary side of the coil, which would thus create a magnetic
field around the winding. The current is then interrupted with the help of a
switching device which is generally the PCM.
This would cause the magnetic field to collapse, inducing
the voltage into the winding. Similarly, the collapsing magnetic field would
create a voltage in the secondary winding. Since there are many more turns of
wire in the secondary winding, then the output voltage would be increased to
thousands of volts. This would be enough to ignite the spark plugs.
Learn More About OBD Error Code P0354
Do you want to learn more about this fault code? This
fault code would start indicating that the powertrain control module has
detected a defect in the primary or secondary circuit of one or more ignition
coils. A lot of OBD equipped vehicles utilize a ?coil on plug? system to
provide ignition spark. Now in this system, an ignition coil is secured to the
engine in a way which would allow for the use of a small spark plug wire. Every
ignition coil is controlled electronically by the powertrain control module.
What causes this problem with the Ignition Coil
?D? Primary/Secondary Circuit Malfunction?
- The manifold vacuum might be leaking
- Defaults in the idle air control valve or electronic body
- The electronic body might be defective
- One or more spark plugs might be quirky
- Malfunctioning ignition coil
- Some faults in the idle air control valve
- There can be a carbon build up in the throttle body air
passages
Replace/Repair These Parts To Fix OBD Code P0354
- Ignition Coil - There
can be some issues with the Ignition Coil due to which you may see P0354 code
appearing over and over again. Visit us to buy best quality Ignition Coil
online.
- Powertrain Control
Module - A lot of issues can arise do to
defective Powertrain Control Module. Did you just see P0354 code flashing? Now
you know the reason why it is appearing. Get it inspected and replaced on time.
- Engine Control
Module - Faulty Engine Control Module can be
the reason why P0354 code is flashing. Visit us to purchase top notch Engine
Control Module online.
- Fuel Ignition
System - Fuel Ignition System parts need full
care. A faulty Fuel Ignition System parts can be a reason behind the flashing
up of P0354 code.
- Engine Wiring
Connector - OBD Code P0354 can appear
because of faulty Engine Wiring Connector.
- Spark Plug - There
can be some issues with the Spark Plug due to which you may see P0354 code
appearing over and over again. Visit us to buy best quality Spark Plug online.
- Electronic Control Unit - Are you facing some faults in your Electronic Control Unit? Don?t worry and get them replaced or else P0354 code can turn up.
- Throttle Body - Common
cause behind this P0354 error code can be some fault in Throttle Body. So it
will be a good decision to replace them now.
Symptoms Of OBD Error Code P0354
You might be thinking that how would you diagnose these
problems? We at Parts Avatar Canada would help you diagnose the major symptoms
easily.
Common Symptoms
- The malfunction indicator lamp can start appearing
- There can be lack of power in the engine, especially
under heavy load
- Car engine may idle roughly
- Engine might misfire on acceleration
- There can be hard to start condition of the engine
- Issue of engine hesitation
How To Correct P0354 Ignition Coil ?D? Primary/Secondary Circuit Malfunction
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:
- Restore the Powertrain Control Module
- The faulty ignition coil should be replaced
- If you find out that there are some faults in the wiring
harness, then it should be repaired or replaced as per the need
- The leakage in the vacuum should be repaired carefully
- The spark plugs and spark plug wiring should be replaced
There is no need to get strained if your OBD Code is
still flashing up as we are here at your service. Have a look at our superior
variety of fusion, wiring diagram, battery connectors, fuse and many more. Now
all your problems would vanish within no time.
Easy Diagnosis Of Engine Error OBD Code P0354
Here are some steps which you should follow in order to
diagnose this fault code:
IF the P0354 code is stored, then it would indicate that
the PCM is not receiving the proper signals from the ignition coil when the
vehicle is in operation. This can be indicative of problems with either the
primary computer side of the ignition coil or the secondary spark plug side of
the coil.
The cause of the code should be verified and it would
require an OBD-II scanner and several tests. A test drive to attempt to reproduce
the situation in which the code was stored can also be helpful, so long as the
mechanic pays close attention to the throttle position, engine cadence, road
speed, and engine load. If you find out that vehicle is misfiring, the code
will generally be verified, and the mechanic can continue with diagnostic steps
to determine the cause of the problem, fix it, clear the code, and then
carefully retest it.
Common Mistakes When Diagnosing The P0354
Code
- Replacing the ignition coil when cause of the malfunction was a leakage in the vacuum
- A lot of people might replace the spark plugs when in
reality the issue can be leakage in the vacuum