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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (3.2L - DTCS B104D To P0123) >> DTC Troubleshooting >> B104D-Blend Door Control Circuit Low >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
HVAC TEMPERATURE DOOR ACTUATOR SIGNAL CIRCUIT SHORTED TO GROUND
HVAC TEMPERATURE DOOR ACTUATOR
LOSS OF HVAC MODULE POWERS AND GROUNDS

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