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 a part of the car that helps keep the engine from freezing is stuck open. It's like a door that won't close, letting cold air in when it shouldn't.
The throttle deicing system is designed to prevent ice buildup in the throttle body. If it gets stuck in the open position, it can affect engine performance.
The P164F code indicates that the throttle deicing mechanism is not functioning properly and is stuck in the open position. This can cause the engine to receive too much air, potentially leading to performance issues or stalling.
• Engine stalling
• Poor engine performance
• Check Engine Light illuminated
• Faulty throttle deicing valve
• Electrical issue in the deicing system
• Mechanical obstruction in the throttle body
Throttle: A device controlling the flow of fuel or power to an engine.
Deicing: The process of removing ice from a surface.
• Check for any stored codes and freeze frame data
• Inspect the throttle deicing valve for proper operation
• Test the electrical connections and wiring
• Replace the faulty throttle deicing valve
• Repair or replace damaged wiring
• Clear any mechanical obstructions in the throttle body
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance checks
• Ensure proper electrical connections
• Keep throttle body clean
Engine Performance
• Avoid driving in extremely cold conditions until repaired
• Have the vehicle inspected by a professional mechanic
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code is relatively uncommon and is typically associated with vehicles operating in very cold climates.
Moderate – Should be addressed to prevent engine performance issues.
Driving with this code may lead to decreased engine performance and increased emissions.
• Cold weather conditions
• Engine at operating temperature
The throttle deicing valve is typically located near the throttle body, which is connected to the intake manifold.
Q: Can I drive with the P164F code?
A: It's not recommended to drive for long periods with this code as it may lead to engine performance issues.
Q: What happens if I ignore the P164F code?
A: Ignoring this code can result in poor engine performance and potential stalling, especially in cold weather.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
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.
View on Amazon
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.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.