What this code means

General fault in the ABS hydraulic pressure sensing or regulation circuit.

Symptoms

• ABS light on
• Stability control disabled
• Brake pedal feel abnormal
• ABS may activate unexpectedly

Common causes

• Faulty ABS pressure sensor
• Hydraulic unit internal leak
• Pressure transducer failure
• Wiring to pressure sensor damaged

Diagnostic steps

1. Read ABS pressure sensor values with scan tool
2. Compare commanded versus actual pressure
3. Inspect pressure sensor wiring
4. Check for brake fluid leaks at ABS unit
5. Test pressure transducer

Repair notes

Replace ABS pressure sensor or hydraulic unit as needed.

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