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Home >> Hyundai >> 2021 >> Ioniq Hybrid SEL >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Blind Spot Detection Diagnosis - Right (HEV) >> DTC C1812-87: CAN Time-Out Gateway >> Wiring Inspection >> CAN Communication line check >> CAN communication circuit inspection (BSD ECU ↔IGPM)

CAN communication circuit inspection (BSD ECU ↔IGPM)

  1. IG key "OFF".
  2. Disconnect BSD ECU(LH, RH) connector and IGPM connector.
  3. Measure the resistance between CAN-HIGH terminal of BSD ECU(LH, RH) harness connector and CAN-HIGH terminal of IGPM harness connector.
  4. Measure the resistance between CAN-LOW terminal of BSD ECU(LH, RH) harness connector and CAN-LOW terminal of IGPM harness connector.

    Specification:  Below 1Ω

  5. Is the measured resistance within specification?

    YES 

    • Substitute with a known-good "IGPM" and check for proper operation. If the problem is corrected, replace "IGPM" and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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