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Home >> Jeep >> 2002 >> Wrangler Sport, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> System Tests >> Brake Switch Sense Does Not Change On Scan Tool >> Possible Causes:

Possible Causes:

  1. Scan Tool Does Not Show Brake Switch Pressed Or Released
  2. Fused B+ Circuit Open
  3. Brake Lamp Switch Ground Circuit Open
  4. Brake Switch (Sense Circuit)
  5. Brake Lamp Switch Sense Circuit Open
  6. Brake Lamp Switch Sense Circuit Short To Ground
  7. Brake Lamp Switch Output Less Than 10 Volts
  8. S/C Power Supply Circuit Below 10 Volts At Brake Switch Connector
  9. Powertrain Control Module (Brake Sense)
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