Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the car's starter relay, which is a small switch that helps the car start. It's like when a light switch doesn't work, and the light won't turn on.
The P0615 code is triggered when the Engine Control Module (ECM) detects a malfunction in the starter relay circuit.
The starter relay is an electrical component that controls the current flow to the starter motor. When the ignition key is turned, the ECM sends a signal to the starter relay, which then closes the circuit to allow current to flow to the starter motor, starting the engine. A fault in this circuit can prevent the engine from starting.
• Engine does not start
• No sound when turning the ignition key
• Intermittent starting issues
• Check Engine Light is on
• Faulty starter relay
• Wiring issues in the starter relay circuit
• Blown fuse related to the starter circuit
• Faulty ignition switch
• ECM malfunction
ECM: Engine Control Module
Relay: An electrical switch that opens and closes under the control of another electrical circuit
• Check the starter relay for proper operation.
• Inspect the wiring and connectors in the starter relay circuit for damage or corrosion.
• Test the ignition switch for proper operation.
• Check the related fuses for continuity.
• Replace the faulty starter relay.
• Repair or replace damaged wiring or connectors.
• Replace the blown fuse.
• Replace the faulty ignition switch.
• Multimeter
• Screwdriver set
• Wiring diagram for the vehicle
$100 - $300
Moderate
• Toyota Camry
• Ford F-150
• Honda Accord
• Regularly inspect and maintain the vehicle's electrical system.
• Ensure all connections are clean and secure.
• Replace components at the first sign of wear.
Electrical Issue
• Do not attempt to start the vehicle repeatedly if the engine does not turn over.
• Consult a professional mechanic if unsure about the repair process.
Check with your vehicle manufacturer or warranty provider for specific coverage related to electrical components.
The P0615 code has been a common issue in vehicles with aging electrical systems, particularly in models with high mileage.
High – This issue can prevent the vehicle from starting, requiring immediate attention.
Always disconnect the battery before working on electrical components to prevent injury or damage.
• Vehicle in park or neutral
• Battery fully charged
The starter relay is typically located in the fuse box under the hood or in the interior fuse panel.
Q: Can I drive with a P0615 code?
A: No, if the starter relay is faulty, the vehicle may not start, making it impossible to drive.
Q: How do I reset a P0615 code?
A: After repairing the issue, use an OBD-II scanner to clear the code from the ECM.
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.
View on Amazon
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.
View on Amazon
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.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.
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.
View options on Amazon
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.