Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that there is a problem with the electrical signal that controls one of the car's ignition coils, which helps the car start and run.
The engine control module (ECM) has detected an open circuit or a problem in the ignition coil F control circuit.
The P035D code is triggered when the ECM detects an open or short circuit in the ignition coil F control circuit. This can prevent the ignition coil from firing properly, leading to engine performance issues.
• Check Engine Light is on
• Engine misfires
• Poor engine performance
• Faulty ignition coil
• Open or shorted wiring in the ignition coil circuit
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the ignition coil and its wiring for damage.
• Test the ignition coil for proper resistance.
• Replace the faulty ignition coil.
• Repair or replace damaged wiring.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect ignition system components.
• Keep electrical connections clean and secure.
• Perform routine vehicle maintenance.
Engine Performance
• Have the vehicle inspected by a professional if experiencing misfires.
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
Check with your vehicle manufacturer to see if ignition components are covered under warranty.
This code has been associated with ignition coil issues across various vehicle models, often due to wear and tear.
Moderate – Address the issue soon to avoid potential engine damage.
Ignoring this code can lead to increased emissions and potential engine damage.
• Engine running
• Vehicle at operating temperature
The ignition coil is typically located on top of the engine, near the spark plugs.
Q: Can I drive my car with a P035D code?
A: It's not recommended as it can lead to further engine damage and poor performance.
Q: How can I reset the P035D code?
A: After repairs, you can reset the code using an OBD-II scanner.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.