C0266: EBCM Relay Circuit

Possible Causes

• Faulty wheel speed sensor or ABS solenoid
• Wiring or connector issues in the chassis circuit
• Low brake fluid or hydraulic issues
• Malfunctioning electronic brake control module (EBCM)
• Mechanical issues in the brake or suspension system

Diagnosis and Repair

• Scan for C-codes using an OBD-II scanner and note related codes
• Inspect wheel speed sensors and ABS solenoids for damage
• Check brake fluid level and condition; refill or flush if needed
• Test wiring and connectors for continuity and corrosion
• Replace faulty sensors or repair hydraulic components
• Clear codes and test drive to verify repair

Related Error Codes

See also:”> C0221, C0222, C0223, C0225, C0226

Keywords: relay diagram, vehicle fuse box, ebcm, automotive wiring, fuse panel layout, c0266:, fuse replacement guide, car fuse types, fuse and relay guide, circuit, car electrical system, ECU error codes, fuse box diagram, relay, electrical troubleshooting

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