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Home >> VinFast >> 2023 >> VF8 Plus >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> Gear Shifter Diagnosis >> DTC U0146-87: Lost Communication With Serial Data Gateway Module "A" - Missing Message >> VinFast DTC Guided Repair Instruction >> Operating Conditions

Operating Conditions

Enable Criteria
  1. No BATTERY over voltage (DTC U1100-17 passed)
  2. No BATTERY low voltage (DTC U1101-16 passed)
  3. No PT-CAN bus off (DTC U1172-88 passed)
  4. Hardwire CLAMP (CL.30s) ON
Failure Criteria CAN Message BCM_CLAMP_STAT (0x112) is not received for mature time (timeout time) continuously
Failure/Mature Time 500 ms
Pass Criteria DTC condition is not satisfied for de-mature time continuously
Pass/De-mature Time Immediate
Failure Aging
  1. 40 times BCM CLAMP change with DTC condition is not satisfied continuously
  2. After repair (test pass criteria satisfied), using DTC clear with diagnostic system