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 has found a problem with a part that helps control the flow of exhaust gases. It's like a door that opens and closes to let out the car's breath, and it might be stuck or not working right.
The P26C5 code indicates an issue with the control circuit for the exhaust flow control valve 'A', which is responsible for regulating the exhaust flow in the vehicle's emission system.
The exhaust flow control valve 'A' is part of the vehicle's emission control system. It helps manage the flow of exhaust gases to optimize engine performance and reduce emissions. The 'control circuit/open' part of the code suggests that there is an electrical problem, such as a broken wire or a disconnected component, affecting the valve's operation.
• Check Engine Light is on
• Reduced engine performance
• Increased emissions
• Faulty exhaust flow control valve
• Damaged or corroded wiring or connectors
• Blown fuse related to the valve circuit
Exhaust Flow Control Valve: A component that regulates the flow of exhaust gases in the vehicle's emission system.
Circuit/Open: Refers to an electrical circuit that is broken or not completing a connection.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the exhaust flow control valve for proper operation.
• Replace the faulty exhaust flow control valve.
• Repair or replace damaged wiring or connectors.
• Replace any blown fuses in the circuit.
• OBD-II scanner
• Multimeter
• Socket set
$150 - $400
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect and maintain emission control components.
• Keep wiring and connectors clean and dry.
• Address check engine lights promptly.
Sensor Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle extensively until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on emission control components.
This code has been associated with emission control issues in various vehicle models, often related to wiring problems.
Moderate – It is recommended to address this issue soon to prevent potential engine performance problems.
Driving with a malfunctioning emission control component may not comply with emissions regulations and could lead to increased pollution.
• Engine at operating temperature
• Vehicle in idle or driving condition
The exhaust flow control valve is typically located in the exhaust system, near the manifold or catalytic converter.
Q: Can I drive with a P26C5 code?
A: While you may be able to drive, it is not recommended as it can lead to increased emissions and reduced engine performance.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the emission control system can help prevent this issue.
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Specialty · O2 sensor socket
Helpful when the code points toward exhaust or oxygen-sensor work and space is tight.
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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.