LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 120 (Air Conditioning System Diagnosis (HEV)) >> DTC B1281: Humidity Sensor Short (Low) - AUTO Defog >> Scantool Diagnostics >> Monitor Scantool Data

Monitor Scantool Data

WARNING: This page is about a different variant/trim than selected.
  1. Connect Scantool with diagnostic connector.
  2. Warm up the Engine to normal temperature after Engine starts.
  3. Select and monitor "Auto Defogger Humidity Sensor" parameter on Scantool.

    (Fig.1) If the DTC related auto defogger sensor is set, Air condition control Module regards and controls humidity as 0%.

  4. Is the defogger sensor normal?

    YES 

    NO 

    • This may be a intermittent problem caused by poor contact of component or the Control Unit.
    • Thoroughly check for looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector.
    • Monitoring with a DVOM on min/max or VMI while wiggling connectors may help find the problem. Any change in voltage indicate a possible problem.
    • Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
scientia non olet · About LEMON Manuals