BYD ATTO 3 (e-Platform 3.0) License Plate Light Not Working

A license plate light failure indicates that the lamp illuminating the vehicle’s registration plate is not operating when commanded. The fault affects the exterior lighting system, including the license plate lamp assembly, lighting control circuits, body control functions, wiring, and associated electronic controls responsible for lamp operation. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

Symptoms

• License plate light does not illuminate
• License plate light operates intermittently
• One or both license plate lamps may be affected
• Lighting warning may be displayed
• Other rear lights continue operating normally
• Lamp may flicker or switch off unexpectedly
• Lighting-related fault may be stored
• Registration plate illumination is reduced or absent

Possible Causes

• Failed license plate LED or lamp assembly
• Fault in the license plate lamp power supply
• Open circuit in the lighting wiring
• Short circuit in the lamp circuit
• Loose or damaged lamp connector
• Poor or corroded connector terminals
• Damaged wiring around the tailgate or rear body
• Lighting control-module fault
• Body control-module fault
• Low or unstable 12V auxiliary voltage
• Internal lamp electronic failure
• Communication fault affecting lighting control

Diagnosis

Diagnosis should begin by confirming whether one or both license plate lamps are affected and checking whether other rear lighting functions operate normally. The lamp power and ground circuits, connectors, wiring continuity, and lighting control-module output should then be evaluated against manufacturer specifications.

Particular attention should be given to wiring around the tailgate or rear body where repeated movement may contribute to harness damage. For New Zealand owners, confirming the lamp circuit before replacing the complete license plate light assembly can help avoid unnecessary repair costs.

Accurately diagnosing this fault often requires manufacturer testing procedures, wiring diagrams, connector pinouts, specifications, and system calibration information. Access to the factory service manual significantly reduces diagnostic time and helps prevent unnecessary parts replacement.

Applicable Years

2022, 2023, 2024, 2025, 2026, onwards

To order the correct OEM Service and Repair Manual for your BYD ATTO 3, submit your request using the form below and our team will provide the ordering details.