What does C0131 mean on a Chevy?

C0131. ABS/TCS Pressure Circuit Malfunction. Applies to Silverado, Sierra, Tahoe, Avalanche, Suburban.

What causes C0131 on a Chevy?

Faulty master cylinder pressure sensor Low brake fluid level from pad wear or a leak Air trapped in the hydraulic brake system Failing brake pressure modulator valve (BPMV) EBCM pressure input circuit fault

How do I fix C0131 on a Chevy?

Check brake fluid level and inspect for hydraulic leaks Bleed the brake system per GM service information Test the pressure sensor signal voltage against actual pedal effort Inspect BPMV lines and fittings for seepage Replace the pressure sensor before condemning the BPMV

Code

C0131

ABS/TCS Pressure Circuit Malfunction

Category: Chassis
Severity: ABS Light
Applies to: Silverado, Sierra, Tahoe, Avalanche, Suburban
Related: No single generic twin. See OBD Codes List

What it means

C0131. ABS/TCS Pressure Circuit Malfunction. This Chevy-enhanced code applies to Silverado, Sierra, Tahoe, Avalanche, Suburban.

Findings, check these first

Faulty master cylinder pressure sensor
Low brake fluid level from pad wear or a leak
Air trapped in the hydraulic brake system
Failing brake pressure modulator valve (BPMV)
EBCM pressure input circuit fault

Standard procedure

Check brake fluid level and inspect for hydraulic leaks
Bleed the brake system per GM service information
Test the pressure sensor signal voltage against actual pedal effort
Inspect BPMV lines and fittings for seepage
Replace the pressure sensor before condemning the BPMV

Look up another code

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Sources and review

Review: no source links are recorded for this entry.

Last updated 2026-09-25.

Report a correction for C0131. Include your vehicle, the issue and a source if you have one.

This fault is part of the GM ABS and StabiliTrak family. The GM ABS and StabiliTrak codes guide covers the check order.