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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> BCM Diagnosis (Except HEV) >> DTC B1631-00: LIN Communication Error - FL SPW >> DTC Information And Inspection >> DTC Setting Condition

DTC Setting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • Monitor the LIN data
  1. Faulty Power Supply
  2. Faulty Ground Circuit
  3. Open/Poor Connection in Signal Circuit
  4. Short-to-Battery in Signal Circuit
  5. Short-to-Ground in Signal Circuit
  6. Signal Circuit protocol error by electrical noise
Prerequisite Condition
  • IG ON
Threshold Value Case1
  • FL SPW*'s LIN data: Not received
Case2
  • FL SPW*'s LIN data: Abnormal
Diagnostic Time
  • 3 sec
Component Name_ETM ETM
BCM* "IBU" SD824-1
FL SPW* "DRIVER SAFETY POWER WINDOW MODULE"
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