BYD ATTO 3 (e-Platform 3.0) B2342 Internal Instrument Failure

B2342 indicates an internal failure has been detected within the instrument cluster. The fault affects the cluster’s electronic processing and display functions, which receive vehicle information from other control modules and present operating status, warnings, and system information to the driver. The BYD ATTO 3 uses BYD’s e-Platform 3.0 architecture, with this generation introduced from 2022 and continuing onward.

Symptoms

• Instrument cluster warning or malfunction message
• Missing or incorrect vehicle information
• Warning indicators may not operate correctly
• Display may freeze, restart, or become intermittent
• Some cluster functions may be unavailable
• Vehicle information may not be displayed correctly
• B2342 stored in the instrument cluster
• Other communication faults may be present

Possible Causes

• Internal instrument cluster electronic failure
• Instrument cluster processor or memory fault
• Cluster power supply problem
• Poor instrument cluster ground connection
• Damaged cluster connector
• Poor or corroded connector terminals
• CAN communication fault
• Low or unstable 12V auxiliary voltage
• Software or configuration fault
• Internal circuit-board or component failure
• Another control module affecting cluster operation

Diagnosis

Diagnosis should begin by confirming B2342 and checking whether other communication or power-related faults are stored. Instrument cluster power and ground supplies, CAN communication, connector condition, module status, software or configuration information, and related vehicle network data should then be evaluated against manufacturer specifications.

The diagnostic direction should first exclude external power, wiring, communication, and network faults before an internal cluster failure is confirmed. For New Zealand owners, confirming the external circuits before replacing the instrument cluster 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.