The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. This greatly reduces the chance of fires caused by electrical problems.
Be sure you replace a bad fuse with a new one of the identical size and rating.
If you ever have a problem on the road and do not have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without -- like the radio or cigarette lighter -- and use its fuse, if it is the correct amperage. Replace it as soon as you can.
Your vehicle also has a special fuse in the battery box for the 42-volt batteries. If this fuse has failed and needs to be replaced, the vehicle will be disabled and you will need to have your vehicle repaired by your dealer. Do not attempt to self-service this fuse.
Hybrid Underhood Fuse Block
The hybrid underhood fuse block is located in the engine compartment on the driver's side of the vehicle near the main underhood fuse block. Lift the cover for access to the fuse/relay block. See Engine Compartment Overview for more information on its location. For more information on the main underhood fuse block see "Underhood Fuse Block" in the Index of your owner manual.
To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out.
Relays | Usage |
|---|---|
SGCM COOLANT PUMP RELAY | SGCM Coolant Fan Pump Relay |
AUX HTR PUMP RELAY | Auxiliary Heater Pump |
TRANS PUMP RELAY | Transmission Pump |
PWR MAINT RELAY | Power Maintain |
Fuses | Usage |
|---|---|
HYBRID PWR | Hybrid Cooling |
COOL PUMP | SGCM Cooling Pump |
HYBRID 02B | Hybrid Oxygen Sensors - Bank B |
HYBRID 02A | Hybrid Oxygen Sensors - Bank A |
PWR MAINT | Power Maintain |
AUX HTR PUMP | Auxiliary Heater Pump |
TRANS PUMP | Transmission Pump |
Empty | Not Used |
ESCM | Energy Storage Control Module |
HCM-B | Hybrid Control Module - Battery |
Empty | Not Used |
HCM-I | Hybrid Control Module - Ignition |
EHPS-I | Electrohydraulic Power Steering - Ignition |
Empty | Not Used |
The wiring circuits in your vehicle are protected from short circuits by a combination of fuses, circuit breakers and fusible thermal links. This greatly reduces the chance of fires caused by electrical problems.
Be sure you replace a bad fuse with a new one of the identical size and rating.
If you ever have a problem on the road and do not have a spare fuse, you can borrow one that has the same amperage. Just pick some feature of your vehicle that you can get along without -- like the radio or cigarette lighter -- and use its fuse, if it is the correct amperage. Replace it as soon as you can.
The 24 volt fuses are located in the engine compartment taped to the 24 volt generator wiring harness. These fuses are for the 24 voltmeter gage fuse (5 amp), 24 volt trailer fuse (25 amp) and 24 volt accessory power circuit (25 amp). Your vehicle also has a special relay center for the Blackout (B/O) lighting. The relay center is located on the underhood fuse block in the engine compartment on the driver's side of the vehicle near the 24 volt battery.
See Engine Compartment Overview for more information on their locations. To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out.
