Place transmission in neutral (TM 5-3810-305-10).
Replace neutral safety switch (WP 0064).
Tighten battery terminals (WP 0076).
Charge or replace battery (WP 0076).
No Voltage at Starting Motor S Terminal.
Reset or replace circuit breaker (WP 0162).
Repair open circuits (WP 0162).
Damaged or Loose Wiring Between Starter Motor and Batteries.
Clean and tighten all connections.
Solenoid, Relay, or Starting Switch Defective.