Toyota RAV4 (XA40) 2013-2018 Service Manual: Hazard warning switch circuit
Description
When the hazard warning signal switch is turned on, the turn signal flasher relay (marking: flsh) in the main body ecu turns on to flash the hazard warning signal lights.
Wiring diagram
Inspection procedure
- Perform active test by intelligent tester
- Connect the intelligent tester (with can vim) to the dlc3.
- Turn the ignition switch on and press the intelligent tester main switch on.
- Select the item below in the active test and then check the relay operation.
Ok: all hazard warning signal lights flash.
- Inspect fuse (haz)
- Remove the haz fuse from the engine room no. 1 Relay block.
- Measure the resistance of the fuse.
Standard resistance:
below 1
- Check wire harness (turn signal flasher relay - battery)
- Remove the turn signal flasher relay from the instrument panel junction block.
- Measure the voltage of the wire harness side connector.
Standard voltage
- Check operation of turn signal flasher relay (marking: flsh)
- Replace the turn signal flasher relay with a normally functioning one or a new one.
- Check that the appropriate turn signal light flashes.
- Connect the intelligent tester (with can vim) to the dlc3.
- Turn the ignition switch on and press the intelligent tester main switch on.
- Select the item below in the active test and then check the relay operation.
Ok: all hazard warning signal lights flash.
Replace turn signal flasher relay
- Inspect hazard warning signal switch
- Remove the hazard warning signal switch.
- Measure the resistance of the switch.
Standard resistance
Repair or replace harness and connector (hazard warning signal switch - body ground)
Turn signal light circuit
Description
The turn signal flasher relay (marking: flsh) in the main body ecu turns on
when it receives signals
from the headlight dimmer switch integrated with the turn signal switch, causing
...
Back-up light circuit
Description
The park / neutral position switch turns on when the shift lever is moved
into the r position, causing the
back-up lights to illuminate.
Wiring diagram
Inspection procedure
I ...
Other materials:
Tilting up and down
Tilts the moon roof up*
Tilts the moon roof down*
*: Lightly press either end of the
moon roof switch to stop the moon
roof partway.
The moon roof can be operated when
Vehicles without a smart key system
The engine switch is in the “on” position.
Vehicles with a smart k ...
Data list / active test (2006/01- )
Read data list
Hint:
Using the intelligent tester's data list allows switch,
sensor, actuator and other item values to be read without
removing any parts. Reading the data list early in
troubleshooting is one way to save time.
Connect the intelligent tester (with can vim) to the
...
Ecu power source circuit
Description
This is the power source for the tire pressure warning ecu.
Wiring diagram
Inspection procedure
Notice:
It is necessary to register an id code after replacing the tire pressure
monitor valve and/or the tire
pressure warning ecu (see page tw-9).
Inspect fuse (ecu-ig1)
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