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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 48 (Engine Control System Diagnosis - 2.0L (3 Of 3) (Except HEV)) >> DTC U0001: High Speed CAN Communication Bus Off (C-CAN) >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.
  1. IG "OFF".
  2. Measure resistance between High signal terminal and Low signal terminal of PCM connector (PCM side).

    Specification:  Approx. 110-130 Ω

  3. Is the measured resistance within specification?

    YES 

    • Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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