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:
Replacement
discharge refrigerant from refrigeration system
Start up the engine.
Turn the a/c switch on.
Operate the cooler compressor with an engine
speed of approximately 1,000 rpm for 5 to 6 minutes
to circulate the refrigerant and collect the
compressor oil remaining in each component int ...
Symptom simulation
Hint:
The most difficult case in troubleshooting is when no
problem symptoms occur. In such a case, a thorough
problem analysis must be carried out. A simulation of the
same or similar conditions and environment in which the
problem occurred in the customer's vehicle should be
carried out. No ...
Tire inflation pressure
Make sure to maintain the
proper tire inflation pressure.
Tire inflation pressure
should be checked at least
once per month. However,
Toyota recommends that
tire inflation pressure be
checked once every two
weeks.
Checking the specified
tire inflation pressure
The recommended cold tire
inflation pr ...
