Fuse/Relay
Location
Fuse Amp
Rating
Fuse Description
F115
40A**
Ignition switch, CJB fuse 21
F116
30A**
Turn relays and back-up lamp relay
F117
20A**
Stoplamp relay (Caterpillar and Cummins
engine)
F118
60A**
Trailer tow left, right and ABS fuse block
(Hydraulic brake vehicles)
F119/F120
60A**
Trailer tow fuse block, Stop/Tail/Marker
lamps
F121/F122
60A**
Trailer tow fuse block (Air brake vehicles),
Left, right and ABS, Hydraulic HydroMax
pump motor fuse relay
R1–201
—
Washer pump relay
R2–202
—
Wiper speed relay
R3–203
—
Wiper run-park relay
R4–204
—
Crank inhibit relay (6.0L Power Stroke
engine)/Exhaust brake relay (Caterpillar and
Cummins engine)
R5–207
—
Drain valve heater relay
R6–205
—
RH stop/turn relay
R7–206
—
LH stop/turn relay
R8–208
—
Back-up lamps relay
R9–209
—
ECM ISO relay (6.0L Power Stroke engine)
or Stoplamp relay (Caterpillar and Cummins
engine)
FIR1–301
—
Fuel heater, Fuel heater-fuel transfer pump
FIR2–302
—
Park lamp relay
FIR3–303
—
Blower motor relay
FIR4–304
—
Air ABS relay, Hydraulic modulator relay
* Mini fuse **Maxi fuse
2004 F650/750
(f67)
Supplement
USA English
(fus)
Roadside emergencies
140