Fuses and Relays
Warning: This vehicle may be equipped with a roof-mounted Citizens' Band (CB) antenna. Operation of an amplified CB radio with output power greater than FCC limits (4W AM/12W SSB) is illegal, and may expose vehicle occupants to radio frequency (RF) radiation that exceeds FCC maximum permissible RF exposure limits. Vehicle occupants with electronic medical devices should consult the device manufacturer's user manual or a physician for information on RF radiation exposure limit guidelines.
Table 1, SAM Cab Fuses
|
SAM Cab Fuses |
||
|
Part |
Name |
AMP |
|
F1 |
Power FD Spare 1 & 3 |
30 |
|
F2 |
Cab/Slpr HVAC Ctrl Trans Shift Pnl |
15 |
|
F3 |
Power FD Spare 2 & 4 |
30 |
|
F4 |
MSF |
15 |
|
F5 |
OBD J1939 OBD DCDI |
10 |
|
F6 |
Dash Power Recp 1 |
15 |
|
F7 |
Dash Power Recp 2 |
15 |
|
F8 |
Phone/Radio |
15 |
|
F9 |
Amplifier Power |
20 |
|
F10 |
Cab HVAC Motor |
30 |
|
F11 |
Sleeper HVAC Motor |
30 |
|
F12 |
Door Controls, L |
20 |
|
F13 |
Door Lock Coll Warn Sys |
20 |
|
F14 |
Fleet Mgm Sys CB |
25 |
|
F15 |
Sleeper Power Recp 3 |
20 |
|
F16A |
Aux Cab Heater Enable |
3 |
|
F16B |
Aux Coolant Heater |
20 |
|
F17 |
Power Recp 4 |
20 |
|
F18 |
GPS Tire Press Monitor Antitheft Warn AuxiliaryTelematics |
15 |
|
F19 |
Heated Seat |
20 |
|
F20 |
CGW |
2 |
|
F21 |
Area Light |
15 |
|
F22 |
ICU Horn Switch |
5 |
|
F23 |
GPS Driver Info Sys Fleet Mgmt Sys Pyrometer, Axle Temp, Eng Oil Temp Gauges |
15 |
|
F24 |
Diagnostic Conn ICU |
7.5* |
|
F25 |
Trans Temp Gauge/Shift Select Phone Collision Warn Sys |
10† |
|
F26 |
SRS Airbags |
5 |
|
F27 |
Mirror Heat, L |
10 |
|
F28 |
Mirror Heat, R |
10 |
|
F29 |
SAM Relay Coils |
3 |
|
F30 |
Power Recp 6 |
20 |
|
F31 |
Power Recp 5 |
20 |
|
F32 |
Power FD Spare 5 & 6 |
25 |
|
F33 |
Spotlight |
20 |
|
F34 |
Baggage Comp Lamp |
3 |
|
F35 |
Dome Lamp |
15 |
|
F36 |
Aux Circulation Fan Road Lamps |
15 |
|
F37 |
Clock (cab & sleeper) Driver Info Sys CD Player Keyless Entry |
15 |
|
F38 |
Door Controls, R |
20 |
|
F39 |
Power Window, R |
15 |
|
F40 |
Power Window, L |
15 |
|
F41 |
Aux Mirror Heat |
10 |
Table 1, SAM Cab Fuses
* F24 value on assemblies -005 and lower is 10 amps.
† F25 value on assemblies -005 and lower is 7.5 amps.
Table 2, SAM Chassis Fuses
|
SAM Cab Relays |
||
|
Position |
Function |
Source |
|
BR21 |
Power FD Spare 1 & 3 Dash Power Recp 1 |
BAT |
|
BR22 |
Power FD Spare 2 & 4 Slpr Power Recp 3 |
BAT |
|
R3 |
Heated Seats |
IGN |
|
BR23 |
Dash Power Recp2 Fleet Mgmt Sys CB Aux Cab Heater Aux Coolant Heater |
BAT |
|
R7 |
GPS Driver Info Sys Fleet Mgmt Sys Pyrometer, Axle Temp, Eng Oil Temp Gauges |
IGN |
|
R8 |
Diagnostic Conn ICU Trans Temp/Shift Select Phone Coll Warn Sys SRS Airbags |
IGN |
|
R9 |
Amplifier Power |
ACC |
|
R10 |
Mirror Heat (L, R, & Aux) |
ACC |
|
BR24 |
Power Recp6 Area Lighting Baggage Comp Lamp Dome Lamp |
BAT |
|
BR25 |
Power Recp 4 & 5 Aux Circulation Fan Reading Lamp |
BAT |
|
R15 |
Power Windows |
ACC |
Table 2, SAM Chassis Fuses
Table 3, SAM Chassis Fuses
|
SAM Chassis Fuses |
||
|
Part |
Name |
AMP |
|
F1 |
Elec Air Process. Unit (EAPU) |
20 |
|
F2 |
Fuel/Water Separator Heat |
20 |
|
F3 |
ABS Bat 1 |
20 |
|
F4 |
ABS Bat 2 |
10 |
|
F5 |
Trailer Left-Turn Lamp |
20 |
|
F6 |
ABS |
15 |
|
F7 |
EAPU/WIF Rear Camera |
10 |
|
F8 |
Trailer Right-Turn Lamp |
20 |
|
F9 |
Trailer Marker Lamps |
30 |
|
F10 |
SAM Relay Coils |
5 |
|
F11 |
Trailer ABS |
30 |
|
F12 |
Trailer Stop Lamps |
30 |
|
F13 |
Trailer Tail Lamps |
20 |
|
F14 |
Trailer Power |
30 |
Table 3, SAM Chassis Fuses
|
SAM Chassis Relays |
|
|
Position |
Function |
|
R1 |
Fuel/Water Separator Heat |
|
R2 |
Trailer Left-Turn Lamp |
|
R3 |
ABS EAPU/WIM Rear Camera |
|
R4 |
Trailer Right-Turn Lamp |
|
R5 |
Trailer Marker Lamps |
|
R6 |
Trailer ABS |
|
R7 |
Trailer Stop Lamps |
|
R8 |
Trailer Power |
|
R9 |
Trailer Tail Lamps |
Table 5, MEGA Fuse Junction Block (MFJB) Fuses, EPA07 Only
|
MEGA Fuse Junction Block (MFJB) Fuses, EPA07 Only |
||
|
Part |
Name |
AMP |
|
F1 |
Powertrain PDM |
175 |
|
F2 |
SAM Cab |
175 |
|
F3 |
SAM Chassis |
125 |
|
F4 |
Chassis-Mounted Trailer PDM |
125 |
|
F5 |
Inverter |
200 |
Table 5, MEGA Fuse Junction Block (MFJB) Fuses, EPA07 Only
Table 6, Powernet Distribution Box (PNDB) Fuses, EPA10 and Newer
|
Powernet Distribution Box (PNDB) Fuses, EPA10 and Newer |
||
|
Fuse |
Function |
AMP |
|
A |
Aftertreatment Control Module |
30 |
|
B |
Emergency Power |
20 |
|
C |
Radio/Clock |
5 |
|
D |
Alternator Remote Sense |
5 |
|
1 |
Powertrain PDM |
175 |
|
2 |
SAM Chassis |
125 |
|
3 |
SAM Cab |
175 |
Table 6, Powernet Distribution Box (PNDB) Fuses, EPA10 and Newer
Table 7, Trailer PDM Fuses and Relays
|
Trailer PDM Fuses and Relays |
||
|
Position |
Function |
AMP |
|
F1 |
Trailer Power Fuse |
30 |
|
F2 |
Taillight Fuse |
30 |
|
F3 |
Left-Turn Lamp Fuse |
20 |
|
F4 |
Right-Turn Lamp Fuse |
20 |
|
F5 |
Marker Lamp Fuse |
30 |
|
F6 |
Stop Lamp Fuse |
30 |
|
R1 |
Taillight Relay |
|
|
R2 |
Right-Turn Relay |
|
|
R3 |
Stop Lamp Relay |
|
|
R4 |
Trailer Power Relay |
|
|
R5 |
Left-Turn Relay |
|
|
R6 |
Marker Lamp Relay |
|