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Possible Causes

Possible Causes 
(B15) BRAKE SIGNAL 1 SHORTED TO GROUND
(B16) BRAKE SIGNAL 2 CIRCUIT OPEN
(B16) BRAKE SIGNAL 2 CIRCUIT SHORTED TO GROUND
(Z910) GROUND CIRCUIT OPEN
STOP LAMP SWITCH
POWERTRAIN CONTROL MODULE (PCM)

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

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