TOYOTA OM47674U Prius Yourself Maintenance Instruction Manual

TOYOTA OM47674U Prius Yourself Maintenance

Product Specifications

• Model: PRIUS v_U
• Manufacturer: Unknown
• Category: Automotive

Product Usage Instructions

Checking and Replacing Fuses

1. Turn the POWER switch off.
2. Open the fuse box cover:
   • For the engine compartment, push the tab in and lift the lid off.
   • For the left side instrument panel, remove the lid.
3. Refer to the Fuse layout and amperage ratings for details about which fuse to check after a system failure.
4. Remove the fuse:
   • Only type A fuse can be removed using the pullout tool.
5. Check if the fuse is blown:
   • If the fuse is blown, replace it with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.

Frequently Asked Questions (FAQ)

1. Q: How do I know if a fuse is blown?
   A: You can visually inspect the fuse to see if the metal strip inside is intact or broken. If it’s broken, the fuse is blown.

2. Q: Can I replace a blown fuse with a higher or lower amperage rating?
   A: It is crucial to replace a blown fuse with one of the same amperage rating as using a higher or lower rated fuse can cause electrical issues or damage to the vehicle.

4-3. Do-it-yourself maintenance

Checking and replacing fuses

If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary.
STEP 1 Turn the “POWER” switch off.
STEP 2 Open the fuse box cover.
Engine compartment

• Push the tab in and lift the lid off.
  • When closing, first hook the lid onto the two rear tabs.

Left side instrument panel

Remove the lid.

STEP 3
After a system failure, see “Fuse layout and amperage ratings” (P. 411) for details about which fuse to check.

STEP  4
Only type A fuse can be removed using the pullout tool.

STEP 5 Check if the fuse is blown. Type A

1. Normal fuse
2. Blown fuse
   Replace the blown fuse with a new fuse of an appropriate amperage rating. The amper-age rating can be found on the fuse box lid.

Type B

1. Normal fuse
2. Blown fuse
   Replace the blown fuse with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.

Type C

1. Normal fuse
2. Blown fuse
   Replace the blown fuse with a new fuse of an appropriate amperage rating. The amper-age rating can be found on the fuse box lid.

Fuse layout and amperage ratings

Engine compartment

injection system
19| ABS MAIN NO.1| 20A| Anti-lock brake system
20| P/I 2| 40A| Horn, right-hand headlight (low beam), left-hand headlight (low beam), back-up lights
21| ABS MTR 1| 30A| Anti-lock brake system
22| ABS MTR 2| 30A| Anti-lock brake system
23| H-LP HI MAIN| 20A| H-LP HI RH, H-LP HI LH, headlight switch, daytime running light system
24| HV BATT| 10A| No circuit
25| DRL| 7.5A| Daytime running light system
26| P/I 1| 60A| IG2, EFI MAIN, BATT FAN
27| EPS| 60A| Electric power steering
28| PCU| 10A| Inverter and converter
29| IGCT NO.2| 10A| Hybrid system, P position control system, inverter and converter
FUSE| Ampere| Circuit
---|---|---
30| MIR HTR| 10A| Outside rear view mirror defoggers
31| RAD NO.1| 15A| Audio system, navigation system

32

|

DOME

|

10A

| Door courtesy lights, personal lights, interior lights, front foot lights, vanity lights, inside rear view mirror, garage door opener, overhead console

33

|

ECU-B

|

7.5A

| Smart key system, multiplex communication system, personal lights, gauges and meters, occupant detection system (ECU and sensors)
34| H-LP LH HI| 10A| Left-hand headlight (high beam)
35| H-LP RH HI| 10A| Right-hand headlight (high beam)
36| EFI NO.2| 10A| Multiport fuel injection system/ sequential multiport fuel injection system
37| IGCT NO.3| 10A| Cooling system
38| SPARE| 30A| Spare fuse
39| SPARE| 10A| Spare fuse
40| SPARE| 7.5A| Spare fuse
41| EFI MAIN| 20A| Multiport fuel injection system/ sequential multiport fuel injection system, EFI NO.2
42| BATT FAN| 10A| Battery cooling fan
43| IG2| 20A| Multiport fuel injection system/ sequential multiport fuel injection system, MET-IGN, IGN, hybrid system

Left side instrument panel

2

| ****

ECU-ACC

| ****

10A

| Multiplex communication system, outside rear view mirrors, driver support system, audio system, navigation system
3| PWR OUTLET| 15A| Power outlets
4| SEAT HTR FR| 10A| Seat heater
5| SEAT HTR FL| 10A| Seat heater
6| DOOR NO.1| 25A| Power door lock system
7| PSB| 30A| Pre-Collision System
8| PWR SEAT FR| 30A| Front seat lumbar support
9| DBL LOCK| 25A| No circuit
10| FR FOG| 15A| Front fog lights
11| PWR SEAT FL| 30A| Front seat lumbar support
12| OBD| 7.5A| On-board diagnosis system
13| RR FOG| 7.5A| No circuit
FUSE| Ampere| Circuit
---|---|---

14

|

STOP

|

10A

| Stop lights, high mounted stop- light, brake system, driver support system, vehicle proximity notification system
15| P FR DOOR| 25A| Power windows
16| D FR DOOR| 25A| Power windows
17| DOOR RR| 25A| Power windows
18| DOOR RL| 25A| Power windows
19| S/ROOF| 30A| Panoramic roof shades
20| ECU-IG NO.1| 10A| Electric cooling fans, multiplex communication system
21|

ECU-IG NO.2

|

10A

| Driver support system, Pre-Collision System, inside rear view mirror, garage door opener, yaw rate & G sensor, brake system, electric power steering, navigation system, panoramic roof shades, tire pressure warning system, seat belt pretensioners, audio system, emergency flashers, turn signal lights, windshield wipers, headlight cleaner
22| GAUGE| 10A| Headlight leveling system, seat belt reminder light, gauges and meters
23| A/C| 10A| Air conditioning system
24| WASHER| 15A| Windshield washer
25| RR WIP| 20A| Rear window wiper and washer
FUSE| Ampere| Circuit
---|---|---
26| WIP| 30A| Windshield wipers
27| MET| 7.5A| Gauges and meters
28| IGN| 10A| Brake system, driver support system, multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, occupant detection system (ECU and sensors), smart key system
29| PANEL| 10A| Air conditioning system, emergency flashers, seat heaters, transmission, P position switch, navigation system, advanced parking guidance system, head- light cleaner, seat belt reminder light, headlight leveling system, glove box light, clock, audio system
30| TAIL| 10A| Headlight leveling system, parking lights, tail lights, license plate lights, front fog lights, side marker lights

• After a fuse is replaced

  • If the lights do not turn on even after the fuse has been replaced, a bulb may need replacement. (P. 419)
  • If the replaced fuse blows again, have the vehicle inspected by your Toyota dealer.

• If there is an overload in a circuit
  The fuses are designed to blow, protecting the wiring harness from damage.

• When replacing light bulbs
  Toyota recommends that you use genuine Toyota products designed for this vehicle. Because certain bulbs are connected to circuits designed to prevent overload, non-genuine parts or parts not designed for this vehicle may be unusable.

CAUTION

• To prevent system breakdowns and vehicle fire
• Observe the following precautions.
  • Failure to do so may cause damage, and possibly a fire or injury.
  • Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse.
  • Always use a genuine Toyota fuse or equivalent.
  • Never replace a fuse with a wire, even as a temporary fix.
  • This can cause extensive damage or even fire.
  • Do not modify the fuses or fuse boxes.
• Fuse box near the power control unit
  • Never check or replace the fuses as there are high voltage parts and wiring near the fuse box.
  • Doing so may cause electric shock, resulting in death or serious injury.

PRIUS v_U (OM47674U)

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