Circuit/System Testing

1. Verify the battery cable connections are clean and tight.
2. Verify Voltage is between 12.0 - 15.0 V
   • If not within the specified range  Refer to Battery Inspection/Test 
   • If within the specified range 
3. Test for less than the 0.5 V drop between terminal A X6 at the X50D Fuse Block - Battery and terminal A X6 at the X50A Fuse Block as the ignition is placed in the CRANK/START position.
   • If greater than 0.5 V 

     Replace the positive battery cable.

   • If less than 0.5 V 
4. Test for less than 0.5 V drop between terminal A X6 at the X50A Fuse Block - Underhood and terminal A X2 at the M64 Starter Motor ignition switch is placed in the CRANK/START position.
5. → If greater than 0.5 V 

   Replace the Starter Solenoid Cable.

   • If less than 0.5 V 
6. Test for less than 0.5 V between the negative battery cable and the M64 starter motor case as the ignition switch is placed to the CRANK/START position.
   • If greater than 0.5 V 

     Replace the negative battery cable.

   • If less than 0.5 V 

Replace the Starter.