Toyota RAV4 (XA40) 2013-2018 Service Manual: Key lock-in prevention function does not work properly
Description
When the key is in the ignition key cylinder or the door courtesy light on signal is output to the main body ecu, performing the door lock operation with the lock switch does not lock the door.
Wiring diagram
Inspection procedure
- Read value of intelligent tester (unlock warning switch)
- Use the data list to check if the unlock warning switch is functioning properly.
Ok: when the switch is operating, the intelligent tester should display as shown in the table.
- Read value of intelligent tester (driver side door courtesy light switch)
- Use the data list to check if the door courtesy light switch is functioning properly.
Ok: when the switch is operating, the intelligent tester should display as shown in the table.
- Inspect front door courtesy light switch assembly lh
- Remove the front door courtesy light switch.
- Measure the resistance of the switch.
Standard resistance 
- Check wire harness (ecu - switch)
- Disconnect the k7 switch connector.
- Disconnect the ia junction block connector.
- Measure the resistance of the wire harness side connectors.
Standard resistance 
Replace instrument panel junction block (main body ecu)
- Inspect unlock warning switch assembly
- Remove the unlock warning switch.
- Measure the resistance of the switch.
Standard resistance 
- Check wire harness (switch - ecu)
- Disconnect the e6 switch connector.
- Disconnect the ie junction block connector.
- Measure the resistance of the wire harness side connectors.
Standard resistance 
Replace instrument panel junction block (main body ecu)
Only back door lock / unlock functions do not operate
Description
The main body ecu receives lock / unlock switch signals and activates the
door lock motor accordingly.
Wiring diagram
Inspection procedure
Inspect back door with motor lock as ...
Key reminder warning system
Parts location
System diagram
...
Other materials:
Center airbag sensor assembly communication circuit malfunction
Description
The center airbag sensor communication circuit consists of the occupant
classification ecu and the
center airbag sensor.
Dtc b1790 is recorded when a malfunction is detected in the center airbag sensor
communication circuit.
Wiring diagram
Inspection procedure
Hin ...
For vehicles equipped with catalytic converter caution:
If a large amount of unburned gasoline or gasoline
vapors flow into the converter, it may cause
overheating and create a fire hazard. To prevent this,
observe the following precautions.
Use only unleaded gasoline.
Avoid idling the engine for more than 20 minutes.
Avoid performing unnecess ...
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
Inspect fuse (gauge1)
Remove the gauge1 fuse from the instrument panel
junction block.
Meas ...
