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:
On-vehicle inspection
Check steering pad assembly (vehicle not involved in collision and
airbag not deployed)
Perform a diagnostic system check (see page rs-
49).
With the steering pad (with airbag) installed on the
vehicle, perform a visual check:
check for cuts, cracks or discoloration on the
...
Integration relay
On-vehicle inspection
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Inspect integration relay
Notice:
The efi relay ...
Steering wheel audio switches
Some audio features can be controlled using the switches on
the steering wheel.
Operation may differ depending on the type of audio system or
navigation system. For details, refer to the manual provided with
the audio system or navigation system.
Operating the audio system using the steering ...
