Starting circuit for GMC Vandura P3500 (1985-1997)

A/T ACCY BATTERY BATTERY JUNCTION BLOCK BLK WIRE CLUTCH PEDAL POSITION SWITCH (CLUTCH PEDAL BRACKET) DK BLU WIRE DK BLU/WHT WIRE ENGINE CONTROLS SYSTEM (COMMERCIAL DIESEL ONLY) FUSIBLE LINK FUSIBLE LINK (10 GA-RUST) IGNITION SWITCH IN LINE CRANK FUSE (COMMERCIAL) OR AUXILIARY FUSE BLOCK (MOTOR HOME) LOCK M/T MOTOR HOME OFF ONLY PARK/NEUTRAL POSITION AND BACKUP LAMPS SWITCH (LEFT SIDE OF TRANSMISSION) PPL PPL M/T PULL- IN COIL HOLD- IN COIL RED WIRE RUN WIRE SECONDARY BATTERY (DIESEL) STARTER MOTOR STARTER RELAY (UNDER BATTERY JUNCTION BLOCK) STARTER SOLENOID WHT WIRE YEL WIRE