LEMON Manuals: Even more car manuals for everyone
Home >> Lincoln >> 2007 >> MKZ AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission External Controls >> Diagnostic Tests >> External Controls >> Pinpoint Tests >> Pinpoint Test A: The Brake Shift Interlock System Does Not Release/Lock Correctly

Pinpoint Test A: The Brake Shift Interlock System Does Not Release/Lock Correctly

  1. A1 TEST THE BRAKE LIGHTS 
    • Apply the brake pedal and view the brake lights.
    • Do the brake lights illuminate? 
    1. YES  : Go to  A2.
    2. NO  : REFER to EXTERIOR LIGHTING .
  2. A2 TEST BRAKE SHIFT INTERLOCK ACTUATOR POWER CIRCUIT 
    • Disconnect: Selector Lever Electrical Connector C3245 (2.3L/3.0L engine) or C3233 (3.5L engine)
    • Key in ON position.
      • Fig 1: Testing Shift Interlock Actuator Power Circuit - 3.0L or a 2.3L
      GF0029865Courtesy of FORD MOTOR CO.
    • Vehicles equipped with a 3.0L or a 2.3L engine, measure the voltage between the selector lever harness connector C3245-1, vehicle harness side and ground, while applying the brake pedal.
      • Fig 2: Testing Shift Interlock Actuator Power Circuit - 3.5L
      GF0029866Courtesy of FORD MOTOR CO.
    • Vehicles equipped with a 3.5L engine, measure the voltage between the selector lever harness connector C3233-1, vehicle harness side and ground, while applying the brake pedal.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A3.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. A3 TEST THE BRAKE SHIFT INTERLOCK ACTUATOR GROUND CIRCUIT 
    • Key in OFF position.
      • Fig 3: Testing Shift Interlock Actuator Ground Circuit - 3.0L or a 2.3L
      GF0029867Courtesy of FORD MOTOR CO.
    • Vehicles equipped with a 3.0L or a 2.3L engine, measure the resistance between the selector lever harness connector C3245-4, vehicle harness side and ground.
      • Fig 4: Testing Shift Interlock Actuator Ground Circuit - 3.5L
      GF0029868Courtesy of FORD MOTOR CO.
    • Vehicles equipped with a 3.5L engine, measure the resistance between the selector lever harness connector C3233-5, vehicle harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new selector lever. REFER to Selector Lever .
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
scientia non olet · About LEMON Manuals