COOLING FAN – Chevrolet Forward Control P30 1999 – SYSTEM WIRING DIAGRAMS

COOLING FAN

6.5L

6.5L VIN F, Cooling Fan Wiring Diagram for Chevrolet Forward Control P30 1999

List of elements for 6.5L VIN F, Cooling Fan Wiring Diagram for Chevrolet Forward Control P30 1999:

• (in dash side of engine harness, 28 cm (11 in) from grommet left side of firewall) s228
• (in engine harness, 9 cm (4 in) from breakout for auxiliary engine coolant fan, toward grommet left side of firewall) s113
• (mounted to top front of steering column support plate) g207
• Auxiliary engine coolant fan a/c pressure switch (close at: 205-265 psi) (open at: 125 psi min) (in a/c compressor high pressure line (body builder installed)
• Auxiliary engine coolant fan temperature switch (in thermostat housing crossover, front of engine)
• Auxiliary engine cooling fan (mounted on front of radiator)
• Eng-1 fuse 15 20a
• Fan control relay (on top of steering column support, behind steering column)
• Hot at all times
• Hot in run & start
• I/p fuse block (body builder installed) (behind dash panel)
• Pnk
• Red
• S101 (in engine harness, 16 cm (7 in) from breakout for auxiliary engine coolant fan, toward grommet left side of firewall)

6.5L VIN Y, Cooling Fan Wiring Diagram for Chevrolet Forward Control P30 1999

List of elements for 6.5L VIN Y, Cooling Fan Wiring Diagram for Chevrolet Forward Control P30 1999:

• (in engine harness, approximately 5 cm (2 in) from breakout for cold advance solenoid, engine coolant temperature switch, toward glowplug controller breakout) s116
• (left interior bulkhead near relay bracket) g202
• Auxiliary engine coolant fan (mounted on front of radiator)
• Auxiliary engine coolant fan a/c pressure switch (body builder installed) (close at: 205-265 psi) (open at 125 psi min) (in a/c compressor high pressure line)
• Eng-1 fuse 15 20a
• Fan control relay (on engine firewall relay bracket, under battery junction block)
• Hot at all times
• Hot in run & start
• I/p fuse block (body builder installed) (behind dash panel)
• Pnk
• Red
• S110 (in engine harness, approximately 4 cm (2 in) from breakout for abs harness connectors)

7.4L

7.4L VIN J, Cooling Fan Wiring Diagram for Chevrolet Forward Control P30 1999

List of elements for 7.4L VIN J, Cooling Fan Wiring Diagram for Chevrolet Forward Control P30 1999:

• (top of steering column support plate) g207
• Aux fan ctrl
• Aux fan sw signal
• Auxiliary engine coolant fan a/c pressure switch (close at: 205-265 psi) (open at: 125 psi min) (in a/c compressor high pressure line (body builder installed)
• Eng-bat fuse 10 15a
• Engine coolant fan motor (mounted to radiator)
• Fan control relay (on top of steering column support, behind steering column)
• Hot at all times
• I/p fuse block (behind dash panel)
• In-line connector on left side of dash) s235
• Red
• Vehicle control module (vcm) (on top of radiator support)