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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> (Heating & Air Conditioning - Electrical Diagnostics) >> DTC Troubleshooting >> B1603-12-Right Solar Sensor - Circuit Short To Battery >> Possible Causes

Possible Causes

Possible Causes
(G139) SUN SENSOR 2 SIGNAL CIRCUIT SHORTED TO VOLTAGE
(G139) SUN SENSOR 2 SIGNAL CIRCUIT OPEN
(C121) SENSOR GROUND CIRCUIT OPEN
SUN SENSOR
A/C HEATER CONTROL

Always perform the HVAC Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  HVAC PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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