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Home >> VinFast >> 2023 >> VF9 Plus >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Intelligent Distribution Brake Diagnosis (2 Of 2) >> DTC U0452-83: Airbag Control Module (ACM)-Value of Signal Protection Calculation Incorrect >> VinFast DTC Guided Repair Instruction >> Operating Conditions

Operating Conditions

Enable Criteria ECU On
IGN On
The battery voltage is between 9 V to 16 V.
Failure Criteria Wrong CRC is received continuously
  1. Signal name: CHKSM_ACM_SEAT_OCCUPATION (fault detection time: 1000 ms)
  2. Signal name: CHKSM_CRASH_Sts (fault detection time: 200 ms)
Failure/Mature Time
  1. 1000 ms
  2. 200 ms
Pass Criteria Signal is received normally over the specified period
Pass/De-mature Time
  1. 1000 ms
  2. 200 ms
Failure Aging 40 Ignition cycles.
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