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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 (Heating & Air Conditioning (ATC) - DTCS B1000 To B11CB-92) >> DTC Troubleshooting >> B11CB-12-Main/Left Temperature Door 1 Control - Circuit Short To Battery >> Possible Causes

Possible Causes

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Possible Causes
(C139) LEFT BLEND DOOR DRIVER 1 CIRCUIT SHORTED TO VOLTAGE
(C137) LEFT BLEND DOOR DRIVER 2 CIRCUIT SHORTED TO VOLTAGE
LEFT BLEND DOOR ACTUATOR
HVAC MODULE

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .