Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that a part that controls how much air the engine gets is getting too hot.
This code indicates that the throttle actuator, which controls the throttle opening, is experiencing an over-temperature condition.
The throttle actuator is responsible for controlling the throttle plate to regulate the air intake into the engine. This code is triggered when the temperature of the actuator's output stage exceeds the manufacturer's specified limits, potentially due to excessive electrical load or mechanical resistance.
• Check Engine Light is on
• Reduced engine performance
• Engine stalling or hesitation
• Electrical short in the throttle actuator
• Mechanical binding in the throttle body
• Faulty throttle actuator motor
Throttle Actuator: A device that controls the throttle opening in an engine.
OBD-II: On-Board Diagnostics, a standardized system for self-diagnosing and reporting vehicle issues.
• Use an OBD-II scanner to confirm the code
• Inspect the throttle body for mechanical binding
• Check the throttle actuator wiring for shorts or damage
• Replace the throttle actuator
• Repair or replace damaged wiring
• Clean or replace the throttle body
• OBD-II scanner
• Multimeter
• Screwdriver set
$200 - $600
Moderate
• Toyota Camry
• Honda Accord
• Ford Focus
• Regularly clean the throttle body
• Inspect wiring for damage
• Perform routine engine maintenance
Engine Performance
• Avoid driving with this issue for extended periods
• Seek professional diagnosis if unsure
• Monitor for any changes in vehicle performance
Check with your vehicle manufacturer for warranty coverage on throttle components.
This code has been associated with throttle actuator issues in vehicles with electronic throttle control systems.
Moderate – Addressing this issue promptly can prevent further engine performance problems.
Continuing to drive with this fault could lead to reduced engine performance and potential safety hazards.
• Engine running at operating temperature
• Throttle actuator in operation
The throttle actuator is typically located on the throttle body, which is connected to the intake manifold.
Q: Can I drive with a P319B code?
A: It's not recommended to drive for long periods with this code as it can lead to reduced performance and potential engine damage.
Q: How do I reset the P319B code?
A: After fixing the issue, use an OBD-II scanner to clear the code from the vehicle's computer.
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