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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 806 (Starting System - Diesel Engine -- E350 &E450 (99P E-Series)) >> Diagnosis And Testing >> Starting System >> Pinpoint Tests >> Pinpoint Test B: The Engine Does Not Crank And The Relay Does Not Click

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

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. B1 CHECK THE STARTER MOTOR RELAY COIL FOR VOLTAGE 
    • Disconnect: Starter Motor Relay.
    • Key in START position.
    • Measure the voltage between the starter motor relay pin 86, circuit 1093 (TN/RD) and ground while holding the key in the START position.
      Fig 1: Measuring Voltage Between Relay Connector And Ground
      G03888147Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to  B5.
    • No  : GO to B2.
  2. B2 CHECK FOR VOLTAGE AT FUSE 33 
    • Key in OFF position.
    • Disconnect: Fuse #33.
    • Key in START position.
    • Measure the voltage between the central junction box (CJB) fuse 33, circuit 33 (WH/PK) and ground while holding the key in the START position.
      Fig 2: Measuring Voltage Between Central Junction Box (CJB) Fuse 33, Circuit 33 (WH/PK) And Ground
      G03888148Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : REPAIR circuit 1093 (TN/RD). TEST the system for normal operation.
    • No  : GO to B3.
  3. B3 CHECK CIRCUIT 1050 (LG/VT) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: Ignition Switch C250.
    • Key in ON position.
    • Measure the voltage between the ignition switch connector C250, circuit 1050 (LG/VT) and ground.
      Fig 3: Measuring Voltage Between Ignition Switch Connector C250, Circuit 1050 (LG/VT) And Ground
      G03888172Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to B4.
    • No  : REPAIR circuit 1050 (LG/VT). TEST the system for normal operation.
  4. B4 CHECK THE IGNITION SWITCH 
    • Carry out the ignition switch component test.
    • Does the ignition switch test good? 
    • Yes  : REPAIR circuit 33 (WH/PK). TEST the system for normal operation.
    • No  : INSTALL a new ignition switch. TEST the system for normal operation.
  5. B5 CHECK THE RELAY GROUND CIRCUIT FOR AN OPEN 
    • Key in OFF position.
    • Measure the voltage between the starter motor relay pin 85, circuit 1419 (LG/YE) and pin 86, circuit 1093 (TN/RD).
      Fig 4: Measuring Voltage Between Relay Socket Terminals
      G03888152Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : INSTALL a new starter motor relay. TEST the system for normal operation.
    • No  : GO to B6.
  6. B6 CHECK CIRCUIT 1419 (LG/YE) 
    • Key in OFF position.
    • Disconnect: PCM C176A.
    • Measure the resistance between the starter motor relay socket pin 85, circuit 1419 (LG/YE) and the PCM C176A pin 4, circuit 1419 (LG/YE).
      Fig 5: Measuring Resistance Between Starter Motor Relay Socket Pin 85, Circuit 1419 (LG/YE) And PCM C176A Pin 4, Circuit 1419 (LG/YE)
      G03888174Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new PCM. TEST the system for normal operation.
    • No  : REPAIR circuit 1419 (LG/YE). CLEAR the DTCs. TEST the system for normal operation.
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