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Home >> Jeep >> 2008 >> Commander Overland, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P050B To P0601 >> P0571-Brake Switch 1 Performance >> Possible Causes
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Possible Causes

Possible Causes 
(B15) BRAKE SWITCH NO.1 SIGNAL CIRCUIT SHORTED TO GROUND
(B16) BRAKE SWITCH NO.2 SIGNAL CIRCUIT OPEN
(B16) BRAKE SWITCH NO.2 SIGNAL CIRCUIT SHORTED TO GROUND
(Z904) GROUND CIRCUIT OPEN
STOP LAMP SWITCH
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.