Toyota RAV4 (XA40) 2013-2018 Service Manual: How to proceed with troubleshooting
Hint:
- Use these procedures to troubleshoot the supplemental restraint system.
- *: Use the intelligent tester.
- Vehicle brought to workshop
- Inspect battery voltage*
Standard voltage: 11 to 14 v
If the voltage is below 11 v, recharge or replace the battery before proceeding.
- Check multiplex communication system*
- Check the dtc.
Result
- Check can communication system
- Check the dtc.
Result
- Warning light check*
- Check for dtc (present and past dtcs)
- Check the dtc.
Result 
- Dtc chart
- Circuit inspection
- Repair*
- Clear dtc (present and past dtcs)*
- Check for dtc (present and past dtcs)
- Check the dtc.
Result 
- Confirmation test
End
System description
General
In conjunction with an impact absorbing structure for
a frontal collision, the srs (supplemental restraint
system) driver airbag, front passenger airbag and
driver side knee air ...
Problem symptoms table
Hint:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms
are listed in order of probability in the "suspected area"
column ...
Other materials:
Brake warning light does not come on
Wiring diagram
Refer to the brake warning light circuit (see page bc-145).
Inspection procedure
Check can communication system
Check if the can communication system dtc is output
(see page ca-34).
Result
Perform active test by intelligent tester (brake warning light)
...
Operation check
Inspect driver side seat belt warning light
Turn the ignition switch on.
When the driver seat belt is not fastened, check that
the driver seat belt warning light on the combination
meter blinks.
When the driver seat belt is fastened, check that the
driver seat belt warning light o ...
Front occupant classification sensor rh circuit malfunction
Description
The front occupant classification sensor rh circuit consists of the occupant
classification ecu and the
front occupant classification sensor rh.
Dtc b1781 is recorded when a malfunction is detected in the front occupant
classification sensor rh
circuit.
Wiring diagram
...
