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Home >> Jeep >> 2009 >> Commander Limited, 4.7 P, RWD >> 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) HIGH BEAM CONTROL CIRCUIT
RIGHT HIGH BEAM BULB
FRONT CONTROL MODULE