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Home >> VinFast >> 2023 >> VF9 Eco >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> Intelligent Distribution Brake Diagnosis (2 Of 2) >> DTC U3023-13: Control Module Input Power Circuit A (Ignition Input On/Start Circuit Correlation)-Circuit Open >> VinFast DTC Guided Repair Instruction >> Operating Conditions
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Operating Conditions

Enable Criteria ECU On
IGN On
Battery Voltage is between 9 V to 16V
Failure Criteria A failure is detected if all conditions below are TRUE for more than 2 min.
  1. CAN ignition = ON
  2. Hardwired ignition = OFF
  3. Vehicle Speed > 15kph
Failure/Mature Time 2 min
Pass Criteria All conditions are TRUE and then IGN re-on
- CAN Ignition == Hardwired Ignition (CAN Ignition = ON & Hardwired Ignition = ON) or (CAN Ignition = OFF & Hardwired Ignition = OFF)
Pass/De-mature Time See Test Pass Criteria
Failure Aging 40 Ignition cycles.