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Home >> Acura >> 2007 >> MDX >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System >> DTC Troubleshooting >> DTC B1202: Climate Control Unit Internal Error
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC B1202: Climate Control Unit Internal Error

NOTE: Check the battery condition (see BATTERY TEST ) and the charging system (see CHARGING SYSTEM INDICATOR CIRCUIT TROUBLESHOOTING ).
  1. Clear the DTC with the HDS.
  2. Turn the ignition switch to LOCK (0), and then ON (II).
  3. Wait for 6 seconds or more.
  4. Do the self-diagnostic with the HDS (see HOW TO USE THE SELF-DIAGNOSTIC FUNCTION WITH THE HDS  ).
  5. Check for DTCs.

    Is DTC B1202 indicated? 

    YES  - The climate control unit is faulty, replace the climate control unit.

    NO  - Intermittent failure, the climate control unit is OK at this time.