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 the car's computer is having trouble controlling a part that helps manage the exhaust gases. It's like when a remote control can't make the TV change channels because the batteries are low.
The P26C6 code indicates a problem with the electrical circuit that controls the exhaust flow control valve. The circuit is reading a low voltage, which means it might not be working properly.
The Exhaust Flow Control Valve A is part of the exhaust system that helps manage the flow of exhaust gases to optimize emissions and performance. A 'Control Circuit Low' code suggests that the voltage in the circuit controlling this valve is lower than expected, which can be due to wiring issues, a faulty valve, or a problem with the power supply.
• Check Engine Light illuminated
• Reduced engine performance
• Increased emissions
• Faulty exhaust flow control valve
• Wiring issues or poor electrical connections
• Faulty power supply or control module
Exhaust Flow Control Valve: A component that manages the flow of exhaust gases.
Control Circuit: The electrical circuit that controls a specific component.
• Check for other related codes
• Inspect wiring and connectors for damage
• Test the exhaust flow control valve for proper operation
• Repair or replace damaged wiring or connectors
• Replace the exhaust flow control valve if faulty
• Check and repair the power supply or control module
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance checks
• Ensure proper electrical connections
• Use quality parts for repairs
Sensor Issue
• Have the vehicle inspected by a professional
• Avoid ignoring the Check Engine Light
• Consider regular diagnostic checks
Check with your vehicle manufacturer for specific warranty coverage related to emissions components.
This code has been more frequently reported in vehicles with higher mileage or those that have not had regular exhaust system maintenance.
Moderate – While not immediately critical, it can lead to increased emissions and reduced performance if not addressed.
Driving with a malfunctioning exhaust system can lead to emissions violations and may affect vehicle safety.
• Engine at operating temperature
• Vehicle in a safe and controlled environment
The exhaust flow control valve is located in the exhaust system, typically near the catalytic converter.
Q: Can I drive with a P26C6 code?
A: It's possible to drive short distances, but it's recommended to address the issue soon to avoid further damage.
Q: Will a P26C6 code affect my vehicle's emissions test?
A: Yes, it can cause your vehicle to fail an emissions test due to increased emissions.
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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
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
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.