C0593 — Brake Booster Motor B Phase U-V-W Current Low

What Does C0593 Mean?

C0593 is a diagnostic trouble code indicating: Brake Booster Motor B Phase U-V-W Current Low. This code relates to the chassis system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of C0593

⚠️ Check Engine Light (MIL) illuminated
⚠️ Brake Booster Motor B Phase U-V-W Current Low not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ ABS or stability control warning light

Common Causes

🔍 Faulty Brake Booster Motor B Phase U-V-W Current Low
🔍 Wiring or connector issue in Brake Booster Motor B Phase U-V-W Current Low circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does C0593 mean?

C0593 indicates: Brake Booster Motor B Phase U-V-W Current Low. The vehicle's computer has detected that the Brake Booster Motor B Phase U-V-W Current Low is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code C0593?

Only short distances if absolutely necessary. C0593 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix C0593?

Repair costs for C0593 typically range from $100 to $400, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect Brake Booster Motor B Phase U-V-W Current Low and related wiring
🔧 Replace faulty Brake Booster Motor B Phase U-V-W Current Low

1
Find your vehicle above
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

C0593: Brake Booster Motor B Phase U-V-W Current Low