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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 120 (Air Conditioning System Diagnosis (HEV)) >> DTC B1284: Direction Potentiometer Short (High) - Auto Defog >> Scantool Diagnostics >> Monitor Scantool Data

Monitor Scantool Data

WARNING: This page is about a different variant/trim than selected.

■ Actuation Test 

  1. Connect Scantool with diagnostic connector.
  2. Warm up the Engine to normal temperature after Engine start.
  3. Select and monitor "Auto Defogger Mode Direction Potentioner" parameter on current data.
  4. Perform Actuation Test for "Auto Defogger Mode Door -0% (close)/50%/100% (open)" in order.
  5. Check that the value of auto defogger mode actuator is changed with performing actuation test.

    Specification  : 0% (close): About 90%, 50%: About 55%, 100% (open): About 20%.

    Fig 1: Screen Display - Auto Defog Direction Potentiometer
    G10591138Courtesy of HYUNDAI MOTOR AMERICA
  6. Does the value of auto defogger mode actuator follow the specification?

    YES 

    • 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.

    NO 

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