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 part of the car that helps keep the throttle from freezing has a problem. It's like when your heater at home doesn't work, and things start getting too cold.
The P167B code indicates that there is an issue with the electrical circuit responsible for heating the throttle to prevent it from freezing in cold conditions. The 'high' part means there's too much voltage in the circuit.
The throttle heating relay circuit is designed to provide heat to the throttle body to prevent ice formation in cold weather. A 'high' circuit condition suggests excessive voltage, which could be due to a short circuit or a faulty relay.
• Check engine light is on
• Poor throttle response
• Engine stalling in cold weather
• Faulty throttle heating relay
• Short circuit in the wiring
• Faulty throttle body heater element
Throttle: A device controlling the flow of fuel or power to an engine.
Relay: An electrical switch that opens and closes under the control of another electrical circuit.
• Use a multimeter to check the voltage at the throttle heating relay.
• Inspect the wiring for any signs of damage or short circuits.
• Test the throttle body heater element for proper resistance.
• Replace the faulty throttle heating relay.
• Repair or replace damaged wiring.
• Replace the throttle body heater element if necessary.
• Multimeter
• OBD-II scanner
• Basic hand tools
$100 - $300
Moderate
• Volkswagen Passat
• Audi A4
• Skoda Superb
• Regularly inspect the throttle body and related components.
• Ensure electrical connections are secure and free of corrosion.
• Perform regular maintenance as per vehicle guidelines.
Electrical Circuit Issue
• Avoid driving in extremely cold conditions until repaired.
• Get the vehicle inspected by a professional mechanic.
• Monitor for any additional symptoms or warning lights.
Check with your vehicle manufacturer for warranty coverage on electrical components.
This code is relatively uncommon and typically occurs in vehicles operating in colder climates.
Moderate – It should be addressed soon to avoid potential drivability issues in cold weather.
Driving with this issue may lead to reduced vehicle performance and safety risks in cold conditions.
• Vehicle parked in a cold environment
• Engine off and ignition on
The throttle heating relay is typically located in the engine compartment, near the throttle body.
Q: Can I drive with a P167B code?
A: While you can drive with this code, it's best to fix it soon to avoid issues in cold weather.
Q: What happens if I ignore the P167B code?
A: Ignoring this code may lead to poor throttle response and engine stalling in cold conditions.
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