FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Brake Switch Circuit

Symptom:

BRAKE SWITCH CIRCUIT

When Monitored and Set Condition:
When Monitored: Ignition On - Continuously
Set Condition: When the brake lamp switch and brake switch outputs are both open or shorted.

POSSIBLE CAUSES
^ INTERMITTENT BRAKE SWITCH CIRCUIT DTC
^ BRAKE LAMP SWITCH STATUS
^ BRAKE SWITCH STATUS
^ FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
^ OUTPUT CIRCUIT SHORT TO VOLTAGE
^ OUTPUT CIRCUIT SHORT TO GROUND
^ OUTPUT CIRCUIT OPEN
^ BRAKE SWITCH OUTPUT CIRCUIT SHORT TO BRAKE LAMP SWITCH OUTPUT CIRCUIT
^ BRAKE LAMP SWITCH
^ BRAKE SWITCH
^ ANTI-LOCK BRAKE CONTROLLER

Test 1:




Test 2 - Test 5:




Test 6 - Test 9:




Test 10: