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Home >> Dodge and Ram >> 2009 >> Durango Base, 4.7 P, 4WD >> Repair and Diagnosis >> Engine Performance >> Ignition System >> (Front Control Module (FCM) - Electrical Diagnostics) >> DTC Troubleshooting >> B1638-Right Hi Beam Control Circuit High >> Possible Causes
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Possible Causes

Possible Causes 
(L34) RIGHT HIGH BEAM DRIVER CIRCUIT OPEN
(L34) RIGHT HIGH BEAM DRIVER CIRCUIT SHORTED TO VOLTAGE
FRONT CONTROL MODULE (FCM)
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