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Home >> Jeep >> 2021 >> Compass Altitude, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Body Control Module (BCM) - DTCS B106A-12 To B1800-11 >> DTC Troubleshooting >> B1606-15-Headlamp Switch Input-Circuit Short To Battery Or Open >> Possible Causes

Possible Causes

Possible Causes
HEADLAMP SWITCH MUX CIRCUIT SHORTED TO VOLTAGE
HEADLAMP SWITCH MUX CIRCUIT SHORTED TO GROUND
HEADLAMP SWITCH MUX CIRCUIT OPEN
HEADLAMP SWITCH MUX RETURN CIRCUIT OPEN
HEADLAMP SWITCH

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

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