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 that helps control how much air goes into the engine. It's like a door that opens and closes to let air in, and it's not working right.
The throttle valve actuator is responsible for controlling the throttle plate, which regulates airflow into the engine. This code indicates that the spring test for this actuator has failed, meaning the actuator might not be functioning properly.
The P16BA code is triggered when the Engine Control Module (ECM) detects that the throttle valve actuator's spring test has failed during the start test. This means that the actuator might not be able to properly control the throttle plate's position, affecting engine performance.
• Check Engine Light illuminated
• Reduced engine performance
• Poor throttle response
• Faulty throttle valve actuator
• Damaged or corroded wiring or connectors
• ECM software issue
Throttle Valve Actuator: A component that controls the throttle plate, regulating air intake into the engine.
ECM: Engine Control Module, the computer that manages engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the throttle valve actuator for damage.
• Check wiring and connectors for corrosion or damage.
• Replace the throttle valve actuator if faulty.
• Repair or replace damaged wiring or connectors.
• Update ECM software if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$200 - $600
Moderate
• Chevrolet Malibu
• GMC Sierra
• Buick Enclave
• Regular maintenance checks
• Keep electrical connections clean
• Update ECM software as recommended
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional mechanic.
Check with your vehicle manufacturer for warranty coverage on throttle system components.
This code has been associated with throttle actuator issues in various vehicle models, often requiring component replacement.
Moderate – While the vehicle may still be drivable, it can lead to reduced performance and should be addressed soon.
Driving with a malfunctioning throttle actuator can lead to unsafe driving conditions. Address the issue promptly.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The throttle valve actuator is typically located on the throttle body, which is connected to the intake manifold.
Q: Can I drive with a P16BA code?
A: While the car may still be drivable, it's best to fix the issue soon to avoid further engine performance problems.
Q: What happens if I ignore this code?
A: Ignoring the code can lead to reduced engine performance and potential damage to the throttle system.
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