Power Distribution

8w-10-8:

Auxiliary Battery
Battery
Fuse 1 (PDC)
Fuse 3 (PDC)
Fuse 4 (PDC)
Fuse 5 (PDC)
Fuse 6 (PDC)
Fuse 7 (PDC)
Fuse 8 (PDC)
Fuse 10 (PDC)
Fuse 11 (PDC)
Fuse 12 (PDC)
Power Distribution Center

8w-10-9:

Fuse B (PDC)
Fuse C (PDC)
Fuse E (PDC)
Fuse G (PDC)
Fuse H (PDC)
Fuse I (PDC)
Fuse J (PDC)
Fuse K (PDC)
Fuse L (PDC)
Fuse Gen
Horn Relay
Power Distribution Center

8w-10-10:

Circuit Breaker 2 (JB)
Engine Starter Motor Relay
Fuse 1 (JB)
Fuse 1 (PDC)
Fuse 2 (PDC)
Fuse 3 (PDC)
Fuse 4 (JB)
Fuse 12 (JB)
Fuse 13 (JB)
Fuse 14 (JB)
Ignition Switch
Joint Connector No. 2
Junction Block
Power Distribution Center

8w-10-11 (GAS):

Fuel Pump Module
Fuel Pump Relay
Fuse 3 (PDC)
Joint Connector No. 2
Power Distribution Center
Powertrain Control Module

8w-10-12 (DIESEL):

Cummins Bus (+)
Engine Control Module
Fuel Injection Pump
Fuel Pump Relay
Joint Connector No. 2
Power Distribution Center
Powertrain Control Module

8w-10-13:

Aftermarket Center High Mounted Stop Lamp
Brake Lamp Switch
Center High Mounted Stop Lamp No. 1
Center High Mounted Stop Lamp No. 2
Combination Flasher
Electric Brake
Fuse 4 (PDC)
Fuse 5 (PDC)
Joint Connector No. 6
Junction Block
Power Distribution Center
Turn Signal/Hazard Switch

8w-10-14 (GAS):

Automatic Shut Down Relay
Fuse 6 (PDC)
Fuse K (PDC)
Joint Connector No. 2
Leak Detection Pump
Power Distribution Center

8w-10-15:

Fuel Injector No. 1
Fuel Injector No. 2
Fuel Injector No. 3
Fuel Injector No. 4
Fuel Injector No. 5
Fuel Injector No. 6
Fuel Injector No. 7
Fuel Injector No. 8
Ignition Coil
Powertrain Control Module

8w-10-17 (GAS):

Fuse K (PDC)
Oxygen Sensor 1/1 Left Bank Up
Oxygen Sensor 1/1 Upstream
Oxygen Sensor 1/2 Downstream
Oxygen Sensor 1/2 Pre- Catalyst
Oxygen Sensor 1/3 Post Catalyst
Oxygen Sensor 2/1 Right Bank Up

8w-10-18 (DIESEL):

Automatic Shut Down Relay
Fuel Heater
Fuel Heater Relay
Fuse 6 (PDC)
Fuse 7 (PDC)
Power Distribution Center
Powertrain Control Module

8w-10-19:

Aftermarket Trailer Tow Connector
Electric Brake
Fuse 8 (PDC)
Joint Connector No. 2
Power Distribution Center
Trailer Tow Connector
Trailer Tow Relay

8w-10-20:

Fuse 2 (PDC)
Fuse 10 (PDC)
Fuse 12 (JB)
Ignition Switch
Integrated Electronic Module
Joint Connector No. 2
Joint Connector No. 5
Joint Connector No. 6
Joint Connector No. 8
Junction Block
Power Distribution Center

8w-10-21:

Blower Motor
Blower Motor Relay
Controller Anti-Lock Brake
Fuse 11 (PDC)
Fuse 12 (PDC)
Power Distribution Center

8w-10-22:

Fuse B (PDC)
Fuse C (PDC)
Fuse E (PDC)
Left Headlamp
Left Outboard Headlamp
Power Distribution Center
Quad High Beam Relay
Right Headlamp
Right Outboard Headlamp

8w-10-23:

Daytime Running Lamp Module
Fog Lamp Relay
Fuse G (PDC)
G102
Headlamp Dimmer Switch
Joint Connector No. 1
Left Fog Lamp
Left Outboard Headlamp
Power Distribution Center
Right Fog Lamp
Right Outboard Headlamp
Security Relay

8w-10-24:

Central Timer Module
Clockspring No. 1
Fuse H (PDC)
Fuse I (PDC)
High Note Horn
Horn Relay
Joint Connector No. 1
Joint Connector No. 6
Low Note Horn
Power Distribution Center
Transmission Control Relay
Transmission Solenoid Assembly

8w-10-25:

A/C Compressor Clutch
A/C Compressor Clutch Relay
Fuse J (PDC)
Fuse L (PDC)
Fuse Gen
Generator
Power Distribution Center
Power Outlet


NOTE: To view sheets referred to in these diagrams, see Complete Body and Chassis Diagrams Electrical Diagrams.