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Home >> Jeep >> 2007 >> Commander Overland, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0503 To P0580 >> P0573-Brake Switch 1 Stuck Off >> Possible Causes

Possible Causes

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

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

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