Relay Center
The relay center is located along the passenger side A-pillar on the right
side of the footwell.
Relay
Location
Relay Description
R1
Spring applied hydraulic release warning chime module or
PCM power VPWR 2, 3 and 4
R2
A/C compressor clutch
R3
Power windows
R4
Flasher (standard/LED)
R5
Upfitter relay 1
R6
Upfitter relay 2
R7
Headlights
R8
Cummins starter lockout
R9
Upfitter relay 3
R10
Starter
R11
DCU (diesel engine only)
R12
Two–speed axle/Differential lock
R13
Door lock
R14
Air tank moisture valve
R15
DRL #1
R16
Heated mirrors
R17
Spare
R18
Upfitter relay 4
R1
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R2
R3
R4
R5
R6
R7
R8
194
Fuses
2015 F-650/750
(f67)
Owners Guide gf
(ownloose)
, 1st Printing, December 2013
Canadian_French
(fr_can)