Toyota RAV4 (XA40) 2013-2018 Service Manual: 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
Inspection procedure
- Perform active test by intelligent tester (security indicator light)
- Select the active test, use the intelligent tester (with can vim) to generate a command, and then check that the security indicator light operation is normal.
Ok: security indicator light turns on / off.
- Check wire harness (transponder key ecu - security indicator light)
- Disconnect the e46 ecu connector.
- Disconnect the e22*1 or e23*2 light connector.
- Measure the resistance of the wire harness side connectors.
Hint:
*1: For manual air conditioning system
*2: For automatic air conditioning system
Standard resistance:
for manual air conditioning system 
For automatic air conditioning system
- Inspect transponder key ecu (output)
- Remove the transponder key ecu with its connectors still connected.
- Measure the voltage of the ecu.
Standard voltage 
Replace clock sub-assembly (for manual air conditioning system), heater control panel (for automatic air conditioning system)
Engine immobiliser system malfunction
Description
This dtc is output when one of the following occurs: 1) the ecm detects
errors in its own
communications with the transponder key ecu; 2) the ecm detects errors in the
communicat ...
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 pow ...
Other materials:
Smart key system
The following operations
can be performed simply by
carrying the electronic key
on your person, for example
in your pocket. The driver
should always carry the
electronic key.
Locks and unlocks the side
doors
Locks and unlocks the back
door
Starts the engine
â– Antenna location
Antennas ou ...
Automatic air conditioning
system
Air outlets and fan speed are automatically adjusted according
to the temperature setting.
Air conditioning controls
Automatic mode switch
Left-hand side temperature control knob
Right-hand side temperature control knob
"SYNC" switch
"OFF" switch
Windshield defogger switch
Rear window and o ...
Theft deterrent system
Engine immobilizer system
The vehicle’s keys have built-in transponder chips that prevent
the engine from starting if a key has not been previously registered
in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to ...
