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 part of the car's ignition switch that lets you use things like the radio or windows when the car is not running.
The P2536 code is triggered when the Powertrain Control Module (PCM) detects a malfunction in the ignition switch accessory position circuit.
The ignition switch accessory position circuit allows electrical components such as the radio, windows, and other accessories to operate when the ignition switch is in the accessory position. A malfunction in this circuit can prevent these components from functioning properly.
• Accessories not working when ignition is in accessory position
• Intermittent electrical issues
• Check engine light illuminated
• Faulty ignition switch
• Damaged wiring or connectors in the ignition circuit
• Blown fuse related to the accessory circuit
PCM: Powertrain Control Module
Ignition Switch: A switch used to start the engine and control electrical circuits.
• Inspect the ignition switch for damage or wear.
• Check the wiring and connectors for any signs of damage or corrosion.
• Test the fuses related to the accessory circuit.
• Replace the faulty ignition switch.
• Repair or replace damaged wiring or connectors.
• Replace any blown fuses.
• Multimeter
• Screwdriver set
• Wire stripper/crimper
$100 - $300
Moderate
• Chevrolet Silverado
• GMC Sierra
• Ford F-150
• Regularly inspect the ignition switch for signs of wear.
• Keep electrical connections clean and free of corrosion.
• Avoid overloading the accessory circuit.
Electrical Circuit Issue
• Ensure all accessories are turned off when not in use to prevent circuit overload.
• Have a professional inspect the ignition system if issues persist.
Check with the vehicle manufacturer for warranty coverage on electrical components.
This code has been associated with vehicles that have frequent accessory circuit issues, often due to ignition switch wear.
Moderate – While not critical, it can affect the use of vehicle accessories.
Ensure all repairs are conducted by a qualified technician to avoid electrical hazards.
• Ignition switch in accessory position
• Vehicle battery charged
The ignition switch is typically located on the steering column or dashboard.
Q: Can I drive my car with a P2536 code?
A: Yes, but some accessories may not function properly.
Q: Will this code affect my car's performance?
A: No, it primarily affects the operation of electrical accessories.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
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Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
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Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
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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.