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Home >> Genesis >> 2021 >> G90 5.0 Ultimate, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Engine Control System Diagnosis - 3.3L (9 Of 9)) >> DTC U04B1-00: Invalid Data Received From Battery Monitor Module >> Component Inspection

Component Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Substitute with a known - good the battery sensor.
  2. Turn off the ignition switch.
  3. Connect the GDS and go to "Current Data".
  4. Clear DTC and Test-drive under the Enable Conditions.
  5. After the road test, check the "DTC".
  6. Is the DTC "U04B1" displayed again?

    YES 

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

    NO 

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