What does C0265 mean on a Chevy?

C0265. EBCM Relay Circuit. Applies to Silverado, Sierra, Tahoe, Yukon, Suburban.

What causes C0265 on a Chevy?

Failed EBCM internal power relay Corroded EBCM ground on the frame or body Cracked solder joints inside the EBCM (common failure) Low system voltage during EBCM self-test Chafed EBCM battery power feed wiring

How do I fix C0265 on a Chevy?

Check EBCM battery power and ground under load Tap-test the EBCM while watching the relay PID Inspect the EBCM connector and ground eyelet for corrosion Repair grounds and feeds before replacing the module Replace the EBCM if the relay circuit fails with good power and ground

Code

C0265

EBCM Relay Circuit

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

What it means

C0265. EBCM Relay Circuit. This Chevy-enhanced code applies to Silverado, Sierra, Tahoe, Yukon, Suburban.

Findings, check these first

Failed EBCM internal power relay
Corroded EBCM ground on the frame or body
Cracked solder joints inside the EBCM (common failure)
Low system voltage during EBCM self-test
Chafed EBCM battery power feed wiring

Standard procedure

Check EBCM battery power and ground under load
Tap-test the EBCM while watching the relay PID
Inspect the EBCM connector and ground eyelet for corrosion
Repair grounds and feeds before replacing the module
Replace the EBCM if the relay circuit fails with good power and ground

Look up another code

Press / to jump to the box. Chevy-enhanced powertrain, body, chassis and network codes.

Sources and review

Review: no source links are recorded for this entry.

Last updated 2026-09-25.

Report a correction for C0265. 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.