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Code P1206

Quick reference

P1206 at a glance

Plain-language meaning
This means there's a problem with a part of the car that helps you brake safely. It's like a switch that tells a helper pump to stop working isn't working right.
Urgency
High – Brake system issues should be addressed immediately to ensure vehicle safety.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
Multimeter, OBD-II scanner, Wrench set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This means there's a problem with a part of the car that helps you brake safely. It's like a switch that tells a helper pump to stop working isn't working right.

Explanation

The P1206 code indicates that the brake booster pump shutoff valve circuit is experiencing low voltage or an open circuit, which affects the brake booster system's operation.

Technical description

The brake booster pump shutoff valve is part of the vehicle's braking system. It helps manage the pressure in the brake booster, which assists in applying the brakes. A 'circuit low' condition means that the electrical circuit controlling this valve is not receiving the correct voltage, possibly due to a wiring issue, a faulty valve, or a problem with the control module.

Symptoms

• Brake warning light on the dashboard

• Increased braking effort

• Reduced braking performance

Common Causes

• Faulty brake booster pump shutoff valve

• Damaged or corroded wiring or connectors

• Faulty control module

Glossary

Brake Booster: A component that helps reduce the effort needed to apply the vehicle's brakes.

Circuit Low: A condition where the electrical circuit is not receiving enough voltage.

Diagnosis steps

• Check the brake booster pump shutoff valve for proper operation.

• Inspect the wiring and connectors for damage or corrosion.

• Test the control module for proper function.

Repair procedures

• Replace the faulty brake booster pump shutoff valve.

• Repair or replace damaged wiring or connectors.

• Replace the faulty control module if necessary.

Tools required

• Multimeter

• OBD-II scanner

• Wrench set

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford Focus

Preventive measures

• Regularly inspect brake system components.

• Ensure electrical connections are clean and secure.

• Perform routine maintenance as recommended by the manufacturer.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the brake warning light.

• Have the braking system inspected by a professional.

• Avoid driving the vehicle if braking performance is significantly reduced.

Warranty information

Check with the vehicle manufacturer for specific warranty coverage on brake system components.

Historical data

This code has been associated with issues in vehicles with electronic brake systems, particularly in models that use advanced braking technologies.

Urgency level

High – Brake system issues should be addressed immediately to ensure vehicle safety.

Testing conditions

• Vehicle in a safe, stationary position

• Ignition in the 'on' position without starting the engine

Component location

The brake booster pump shutoff valve is typically located near the brake booster assembly, which is usually found on the driver's side of the engine compartment.

FAQs

Q: Can I drive my car with a P1206 code?
A: It's not recommended to drive with this code active, as it indicates a potential issue with the braking system.

Q: How can I reset the P1206 code?
A: The code can be reset using an OBD-II scanner, but it's important to fix the underlying issue first.

Optional diagnostic gear

Tools that may help diagnose P1206

FOXWELL Multi-System Scanner diagnostic tool illustration

Pro · Four-system diagnostics

FOXWELL Multi-System Scanner

A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.

Chassis and ABS faults usually need a scanner that can read brake-system data directly.

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EPAuto 1/2" Torque Wrench diagnostic tool illustration

Universal · Torque wrench

EPAuto 1/2" Torque Wrench

Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.

Useful when wheel, hub, or suspension hardware needs correct reassembly torque.

View on Amazon
MaxxHaul Vehicle Ramps diagnostic tool illustration

Universal · Drive-on ramps

MaxxHaul Vehicle Ramps

Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.

Helpful for safer access during underbody inspection work.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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