P0350 OBD-II Trouble Code: P0350 Ignition Coil Primary/Secondary Circuit Malfunction

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0350 code

P0350 is a diagnostic trouble code (DTC) for "P0350 Ignition Coil Primary/Secondary Circuit Malfunction". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford $114.99 $20.0
Toyota $114.99 $20.0
BMW $124.99 $20.0
SCHEDULE P0350 DIAGNOSTIC Get a fair and transparent estimate upfront

P0350 code definition

A P0350 indicates that the Powertrain Control Module (PCM) has detected a malfunction in the circuit of one or more of the engine's ignition coils.

What the P0350 code means

The P0350 code refers to an input problem relating to the engine's ignition coils. The PCM controls and monitors the performance of the ignition coils. A malfunction will have potentially significant effects on your vehicle's engine performance depending on the severity of the malfunction.

What causes the P0350 code?

A P0350 code is logged in with the vehicle's computer whenever a recorded voltage differs from the manufacturer's default setting by more than 10%. This anomaly could be caused by a faulty or broken ignition coil, disconnected or corroded wiring, loose connectors or a malfunctioning PCM.

What are the symptoms of the P0350 code?

The P0350 code will negatively affect an engine's performance. Issues with engine stalling and acceleration are also commonly reported. For the sake of diagnosis, a malfunction warning dashboard light and trouble code will be logged in the vehicle.

How does a mechanic diagnose the P0350 code?

Special attention should be placed on the circuits between the PCM and ignition coils, as well as the ignition coils themselves. Disconnected ignition coils may be identified by shaking them gently by hand and seeing if they budge. A P0350 is often caused by a problem with the electrical circuit. The wiring and electrical connectors should be thoroughly inspected. If the ignition coils and wiring have both checked out, the possibility of a faulty PCM may be considered.

Common mistakes when diagnosing the P0350 code

Solving a P0350 code may be mistakenly approached by simply performing maintenance. While this may be the thing the system needs, faulty components or wiring should not be ruled out as possible causes.

How serious is the P0350 code?

Although the vehicle should remain relatively operable in the instance of a P0350 code, it may significant affect the drivability, particularly with regards to engine stalling and acceleration. Because a P0350 runs the risk of stalling your engine, it should be repaired as soon as possible in order to prevent driving safety risks.

What repairs can fix the P0350 code?

If any components related to the ignition coil system (including the PCM) have been identified as faulty, they should be repaired or replaced as is needed. If there is an issue with the wiring or connectors, the circuit between the PCM and affected ignition coil should be reconnected or replaced as necessary. The ignition system should be retested after each individual repair in order to identify the source of the problem.

Additional comments for consideration regarding the P0350 code

Ignition coils are controlled directly by the PCM, so any connections between the two should be focused on while diagnosing and repairing the code. Other trouble codes relating to the PCM and ignition coils may complicate identifying the problem.

Need help with a P0350 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

Check Engine Light
trouble codes
P0350

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0350 code.

SCHEDULE P0350 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(7400)

Rating Summary
6879
249
58
41
173
6879
249
58
41
173
 at YourMechanic

David

13 years of experience
393 reviews
David
13 years of experience
Chevrolet Malibu L4-2.4L - Check Engine Light is on Inspection - Marietta, Georgia
He explained everything to me in detail on what I needed to know about my car. Definitely recommend him for getting the job done.
 at YourMechanic

Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Toyota Camry L4-2.2L - Check Engine Light is on - Las Vegas, Nevada
Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. should I expect this on future appointments with your mechanic ?
 at YourMechanic

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Volkswagen EuroVan V6-2.8L - Check Engine Light is on Inspection - Austin, Texas
Arrived on time. Explained the issues he found and how he will fix it. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive.
 at YourMechanic

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Ford F-150 V8-4.6L - Check Engine Light is on Inspection - Littleton, Colorado
Kanstantsin arrived early. Was very courteous and professional. Will highly recommend to anyone. Thank you Kanstantsin.


Related questions

Check Engine Light is on - code P0350
Hi there. Changing the plugs and coils is definitely a plausible route to take; however, this sounds like you have an open circuit in the wire harness, anywhere from the coils to the ECM. Using a digital volt/ohm meter and...

More related articles

P0261 OBD-II Trouble Code: Cylinder 1 Injector Circuit Low
P0261 P0261 code definition Cylinder 1 Injector Circuit Low What the P0261 code means This trouble code indicates that the powertrain control module (https://www.yourmechanic.com/article/what-is-a-vehicle-s-electrical-control-unit) has detected a lower reference voltage coming from the number 1 cylinder’s fuel injector than what...
P2282 OBD-II Trouble Code: Air Leak Between Throttle Body and Intake Valves
P2282 P2282 code definition Air Leak Between Throttle Body and Intake Valves What the P2282 code means P2282 is an OBD-II generic code for the engine control module (ECM) monitoring the vacuum in the intake manifold at idle. This code...
P0553 OBD-II Trouble Code: Power Steering Pressure Sensor Circuit High Input
P0553 code means there is an issue with the power steering pressure sensor often caused by leaks or loose connections.

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com