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Home >> Kia >> 2019 >> Optima LX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 249 (Occupant Classification System Diagnosis (PHEV)) >> DTC B1697-87: ACU Communication Error >> Wiring Inspection >> CAN Register And Communication Line Inspection >> CAN Register And Communication Line Inspection 1

CAN Register And Communication Line Inspection 1

WARNING: This page is about a different variant/trim than selected.
  1. Ignition "OFF".
  2. Connect all module connectors in proper locations.
  3. Measure resistance between Pin No. 13 (High) and Pin No. 14 (Low) terminals of IGPM.

    Specification:  Approx. 60Ω

  4. Is the measured resistance within specification?

    YES 

    • Check module connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF REPAIR " procedure.
    • Go to "CAN register and communication line inspection 2" procedure.

    NO 

    • If the measured value is out of specification, repair or replace 120Ω CAN register (Inside of PCM and IGPM) and then, go to "VERIFICATION OF REPAIR " procedure.
    • If the measured value is lower than 10Ω, repair or replace CAN High and CAN Low are short each other. And then, go to "VERIFICATION OF REPAIR " procedure.
    • If the measured value is lower than 10Ω, repair or replace CAN High and CAN Low are short each other. And then, go to "VERIFICATION OF REPAIR " procedure.
    • Go to "CAN register and communication line inspection 2" procedure.
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