Toyota RAV4 (XA40) 2013-2018 Service Manual: Unlock warning switch
Inspection
- Inspect unlock warning switch assembly
- Measure the resistance of the switch.
Standard resistance 
If the result is not as specified, replace the switch assembly.
Ecu power source circuit
Description
This circuit provides power to operate the transponder key ecu.
Wiring diagram
Inspection procedure
- Inspect fuse (ecu-b2)
- Remove the ecu-b2 fuse from the engine room no. 2 Relay block.
- Measure the resistance of the fuse.
Standard resistance:
below 1 
- Check wire harness (transponder key ecu - battery and body ground)
- Disconnect the e46 ecu connector.
- Measure the resistance and voltage of the wire harness side connector.
Standard resistance 
Standard voltage 
Proceed to next circuit inspection shown in problem symptoms table
Security indicator light circuit
Description
When the transponder key is registered, the transponder key ecu indicates the
key registration condition
by lighting up, blinking or turning off the security indicator.
Wiring diagram ...
Horn
...
Other materials:
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)
...
Rear occupant classification sensor rh collision detection
Description
Dtc b1788 is output when the occupant classification ecu receives a collision
detection signal sent by
the rear occupant classification sensor rh when an accident occurs.
Dtc b1788 is also output when the front seat rh is subjected to a strong impact,
even if an actual
acci ...
Operating HomeLink
Press the appropriate
HomeLink button. The
HomeLink indicator light
should turn on.
The status of the opening and
closing of a garage door is
shown by the garage door operation
indicators.
Vehicles with auto anti-glare
inside rear view mirror
Opening
Closing
Vehicles with Digital Rearview
Mirr ...
