C0265 on Chevrolet
EBCM Motor Relay Circuit Low When On
C0265 on Chevrolet vehicles indicates ebcm motor relay circuit low when on. Au7o has documented this code across 1 Chevrolet model — most commonly on Tahoe. C0265 is a manufacturer-specific chassis code (common on GM vehicles) indicating the Electronic Brake Control Module (EBCM) detected a fault in the internal motor relay circuit that powers the ABS pump motor, reading low voltage when the relay should be on. This relay must energize for the ABS, traction control, and stability systems to operate. When this fault is present, the module typically disables ABS and traction/stability control, illuminating the related warning lights. Normal braking still works, but the anti-lock and stability assist functions are offline. Typical repair costs on Chevrolet range from $100 to $700, depending on the specific model and root cause.
Common Causes of C0265
- •Cracked solder joints / internal failure in the EBCM
- •Failed ABS pump motor relay
- •Damaged or corroded EBCM wiring/connectors
- •Low system voltage or weak battery/charging fault
- •Poor ground at the EBCM
- •Failed ABS pump motor
- •Corrosion or water intrusion in the module connector
C0265 on Chevrolet by Model
Chevrolet Tahoe(1 issue)
- EBCM / ABS Module Failure & Corroded Ground (ABS, Traction, StabiliTrak Lights)2000-2006
GMT800 Tahoes commonly light the ABS, Traction Control and (on later trucks) StabiliTrak warnings simultaneously due to the Electronic Brake Control Module (EBCM) or, very often, its corroded frame-mounted ground. The dedicated EBCM ground on the driver-side frame rail is exposed to road salt and corrodes, causing intermittent module communication loss and codes like C0265. Internal EBCM solder-joint failures also occur. Normal service braking still works, but ABS/traction functions drop out.
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View C0265 across all makes →Frequently Asked Questions
What does C0265 mean on Chevrolet?▼
C0265 stands for "EBCM Motor Relay Circuit Low When On." C0265 is a manufacturer-specific chassis code (common on GM vehicles) indicating the Electronic Brake Control Module (EBCM) detected a fault in the internal motor relay circuit that powers the ABS pump motor, reading low voltage when the relay should be on. This relay must energize for the ABS, traction control, and stability systems to operate. When this fault is present, the module typically disables ABS and traction/stability control, illuminating the related warning lights. Normal braking still works, but the anti-lock and stability assist functions are offline. On Chevrolet specifically, this code is documented across 1 model.
What causes C0265 on Chevrolet vehicles?▼
Common causes on Chevrolet: Cracked solder joints / internal failure in the EBCM, Failed ABS pump motor relay, Damaged or corroded EBCM wiring/connectors, Low system voltage or weak battery/charging fault, Poor ground at the EBCM. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix C0265 on a Chevrolet?▼
Repair costs on Chevrolet range from $100 to $700, depending on the specific model and root cause.
Which Chevrolet models have C0265 documented?▼
Au7o has documented C0265 on 1 Chevrolet model: Tahoe.