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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Starting System -- Gasoline Engines -- F250-F550 Super Duty) >> Diagnosis And Testing >> Starting System >> Pinpoint Tests >> Pinpoint Test A: The Engine Does Not Crank And The Relay Does Click

Pinpoint Test A: The Engine Does Not Crank And The Relay Does Click

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 CHECK THE VOLTAGE TO THE STARTER RELAY 
    • Measure the voltage between the starter relay pin 30 and ground.
      Fig 1: Measuring Voltage Between Relay Pin 30 And Ground
      G03879191Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to A2.
    • No  : REPAIR the circuit for an open. TEST the system for normal operation.
  2. A2 CHECK THE VOLTAGE TO THE STARTER MOTOR SOLENOID 
    • Measure the voltage between the starter motor solenoid positive terminal and ground.
      Fig 2: Measuring Voltage Between Starter Motor Solenoid Positive Terminal And Ground
      G03888145Courtesy of FORD MOTOR CO.
    • Is the voltage 10 volts or greater? 
    • Yes  : GO to A3.
    • No  : REPAIR circuit 2037 (RD) for an open. TEST the system for normal operation.
  3. A3 MANUALLY JUMP THE STARTER MOTOR 
    • Connect one end of a fused (15A) jumper wire to the positive terminal of the battery and touch the other end to the starter solenoid S-terminal.
      Fig 3: Connecting Fused Jumper Wire To Positive Terminal Of Battery And Other To Starter Solenoid S-Terminal
      G03888146Courtesy of FORD MOTOR CO.
    • Does the starter solenoid engage? 
    • Yes  : GO to A4.
    • No  : INSTALL a new starter motor. TEST the system for normal operation.
  4. A4 TEST THE STARTER MOTOR RELAY 
    • Carry out the relay component test on the starter motor relay. Refer to the COMPONENT TEST .
    • Does the starter motor relay test good? 
    • Yes  : REPAIR circuit 113 (YE/LB) for an open. TEST the system for normal operation.
    • No  : INSTALL a new starter motor relay. TEST the system for normal operation.