C0586
Brake Booster Motor B Phase U-V-W Circuit Range/Performance
C0586 is an OBD-II diagnostic trouble code meaning: Brake Booster Motor B Phase U-V-W Circuit Range/Performance. Common causes: open or short in phase b wiring harness, brake booster motor malfunction.
Symptoms
- Increased brake pedal force
- The brake system fault light is on
- Reduced braking performance
- Noise from running amplifier motor
Causes
- Open or short in phase B wiring harness
- Brake booster motor malfunction
- Problems with the amplifier control module
- Oxidation of contacts in the circuit
- Engine position sensor malfunction
How to Fix
- Check phase B wiring harness for opens/shorts
- Check the resistance of the motor windings
- Check power supply and control signals from the module
- Clean connector contacts
- If necessary, replace the motor or control module
Related codes
Error C0586 by Vehicle Brand
FAQ
What does the C0586 code mean?
C0586 is an OBD-II diagnostic trouble code that indicates: Brake Booster Motor B Phase U-V-W Circuit Range/Performance
What causes a C0586 error code?
The most common causes of C0586 include: Open or short in phase B wiring harness; Brake booster motor malfunction; Problems with the amplifier control module; Oxidation of contacts in the circuit.
How do I fix a C0586 diagnostic trouble code?
To fix C0586: Check phase B wiring harness for opens/shorts. Check the resistance of the motor windings. Check power supply and control signals from the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0586?
Limited driving only, diagnose soon
See also: Russian version · NationStat