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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 96 (Weight Classification System Diagnosis (HEV)) >> DTC B1644: CAN Time-Out ACU >> W/Harness Inspection >> Power Circuit Inspection

Power Circuit Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Check for an open or short circuit in the WCS Power Circuit.
    1. Disconnect WCS connector from wiring harness.
    2. Ignition "ON" & Engine "OFF".
      1. Measure voltage between terminal "Supply Voltage" and chassis ground.

        Specification:  Battery Voltage

        Fig 1: Measuring Voltage Between Terminal Supply Voltage And Chassis Ground
        G10603966Courtesy of HYUNDAI MOTOR AMERICA
  2. Is the measured voltage within specifications?

    YES 

    NO 

    • Substitute the SRSCM main harness or WCS Module and check for proper operation.

      If the problem is corrected, replace SRSCM main harness or WCS Module and then go to "VERIFICATION OF VEHICLE REPAIR " procedure and Go to "WCS RESET " procedure.