Fuse/Circuit
Breaker
Usage
IGN-E Air Conditioning Enable Relay Coil
ECM-I
Fuel Injectors 1–6, Crankshaft
Position Sensot, VCM, Coil Driver
Module (EST), Ignition Coil
BLANK Not Used
RH HDLMP Right Headlamp
LH HEADLAMP Left Headlamp
BLANK Not Used
BLANK Not Used
DIODE-1 Air Conditioning
BLANK Not Used
BLANK Not Used
BLANK Not Used
LIGHTING
Courtesy Fuse, Power Adjust
Mirrors Fuse, Truck Body Control
Battery Fuse
BATT
Power Accessory Circuit Breaker,
Stop/Hazard Fuse, Auxiliary Power
Fuse, Cigarette Lighter Fuse, Radio
Battery Fuse
IGN A Starter Relay, Ignition Switch
IGN B Ignition Switch
ABS Electronic BrakeControl Module
Fuse/Circuit
Breaker
Usage
BLANK Not Used
RAP Radio Accessory, Power Windows
HTD MIR/
RR DEFOG
Rear Window Defogger, Climate
Control Head
Relays Usage
A/C RELAY Rear/Heat and Air Conditioning
UPFITTER -
ACCY RELAY
Upfitter Accessory
STARTER
ENABLE
RELAY
Starter
A/C ENABLE
RELAY
Air Conditioning
HEAD LAMPS
RELAY
Headlamps
FUEL PUMP
RELAY
Fuel Pump
Feed Usage
AUX B Upfitter Battery Feed
AUX A Upfitter Accessory Feed
5-100
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