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byd_chg03
Easy Fix
BYD · Electric & Hybrid Cars
Charging Cable Lock Malfunction
Quick Answer
Error code BYD_CHG03 on your BYD Electric & Hybrid Cars means: Charging Cable Lock Malfunction. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
BYD-A3BYD-DPBYD-HNBYD-SLBYD-SUBYD-SPBYD-TG
Likely Causes
  1. Charge port latch solenoid failure preventing connector from locking or releasing
  2. Foreign material such as ice, mud, or debris jamming the latch mechanism
  3. Charge port controller software fault failing to issue lock or unlock command
  4. Latch pawl mechanical wear or breakage within the charge port assembly
  5. Wiring harness fault to the latch solenoid causing loss of actuation signal
How to Fix It
1
Visually inspect the charge port opening for any debris, ice, or foreign material in the latch area
2
Use compressed air to clear the charge port and latch mechanism of any obstructions
3
Attempt to unlock the cable via the vehicle touchscreen or BYD app
4
Cycle the vehicle power off and on to reset the charge port controller
5
Contact BYD service if the latch solenoid or mechanical pawl requires replacement
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Charge port latch solenoid
Charge port assembly replacement
Latch wiring harness connector repair kit
Compressed air canister
Related Error Codes
BYD_BMS01BYD_BMS02BYD_BMS03BYD_CHG01BYD_CHG02
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