FixVault

Possible Causes

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

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