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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, RWD >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> DTCS B1001 To B10A2 >> B106B-Rear Defrost Control Circuit Low (ATC) >> Possible Causes

Possible Causes

Possible Causes 
(C115) REAR WINDOW DEFOGGER RELAY CONTROL CIRCUIT SHORTED TO GROUND
(C115) REAR WINDOW DEFOGGER RELAY CONTROL CIRCUIT OPEN
REAR WINDOW DEFOGGER RELAY
A/C HEATER CONTROL
NOTE: This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC is stored. Refer to HVAC System Test (ATC) for stored DTC test procedures.