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Name
Usage
IGN1
Ignition Relay
PCM 1
Powertrain Control Module
ETC/ECM
Electronic Throttle Control,
Electronic Brake Controller
INJ 1
Ignition Coil, Fuel Injectors
INJ 2
Ignition Coil, Fuel Injectors
IGN E
Instrument Panel Cluster,
Air Conditioning Relay, Turn
Signal/Hazard Switch, Starter Relay,
Electronic Brake Controller TC2
Mode Switch
RTD
Electronic Brake Controller
Battery Feed
TRL B/U
Backup Lamps Trailer Wiring
PCM B
Powertrain Control Module,
Fuel Pump
F/PMP
Fuel Pump Relay
02A
Oxygen Sensors
6-66
Name
B/U LP
RR DEFOG
-
HDLP
HI
--
Bank 1
PRIME
--
Bank 2
02B
SIR
FRT PRK
DRL
SEO IGN
TBC IGN1
HI HDLP
LH HID
DRL
Usage
Backup Lamps, Automatic
Transmission Shift Lock
Control System
Rear Window Defogger
Headlamp High Beam Relay
Not Used
Oxygen Sensors
Supplemental Inflatable
Restraint System
Front Parking Lamps,
Sidemarker Lamps
Daytime Running Lamps Relay
Rear Defog Relay
Truck Body Controller Ignition
-
LT
High Beam Headlamp
Not Used
Daytime Running Lamps
-
Left
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