If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary.
Vehicles with smart key system:
Turn the “ENGINE START STOP” switch off.
Vehicles without smart key system:
Turn the engine switch to the “LOCK” position.
Open the fuse box cover.
► Engine compartment

Push the tab in and lift the lid off.
► Driver’s side instrument panel

Remove the lid.
After a system failure, see “Fuse
layout and amperage ratings” for details about which fuse to check.

Remove the fuse with the pullout tool.
Check if the fuse has blown.
►Type A

1. Normal fuse
2. Blown fuse
Replace it with one of an appropriate amperage rating.
The amperage rating can be found on the fuse box lid.
►Type B

1. Normal fuse
2. Blown fuse
Contact your Toyota dealer.
Fuse layout and amperage ratings
- Engine compartment
►Fuse block

►Back of the cover




- Driver’s side instrument panel




- After a fuse is replaced
• If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement.
• If the replaced fuse blows again, have the vehicle inspected by your Toyota dealer.
- If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
- To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage to the vehicle, and possibly a fire or injury.
• Never use a fuse of a higher amperage rating than 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.
• Do not modify fuses or the fuse box.
NOTICE
- Before replacing fuses
Have the cause of electrical overload determined and repaired by your Toyota dealer.
Key battery
Light bulbsOccupant Classification Sensor Power Supply Circuit Malfunction (B1793)
DESCRIPTION
The occupant classification sensor power supply circuit consists of the occupant
classification ECU and occupant classification sensors.
DTC B1793 is recorded when a malfunction is detected in the occupant classification
sensor power supply c ...
Removal
REMOVAL
PROCEDURE
1. REMOVE UPPER CONSOLE PANEL SUB-ASSEMBLY (w/o Seat Heater System)
2. REMOVE UPPER CONSOLE PANEL SUB-ASSEMBLY (w/ Seat Heater System)
3. REMOVE NO. 2 CONSOLE BOX CARPET
4. REMOVE CONSOLE BOX ASSEMBLY
5. REMOVE AIR CONDITION ...
Terminals Of Ecu
TERMINALS OF ECU
HINT:
Check from the rear of the connector while it is connected to the components.
1. NAVIGATION RECEIVER ASSEMBLY
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
...