Toyota RAV4 (XA40) 2013-2018 Service Manual: How to proceed with troubleshooting
Hint:
- Use these procedures to troubleshoot the tire pressure warning 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 indicator light
- Check the indicator light (see page tw-17).
- Check dtc*
- Check for dtc (see page tw-20).
- Clear the dtc (see page tw-20).
- Recheck for dtc (see page tw-20).
Result 
- Dtc chart
- Check for tire pressure warning system dtc output (see page tw-22).
- Problem symptom confirmation
- Problem symptoms table
Result
- Overall analysis and troubleshooting*
- Terminals of ecu (see page tw-16).
- Data list/active test (see page tw-21).
- Repair or replace
- Confirmation test
End
System description
Description of system
A tire pressure warning antenna and receiver is
equipped with a tire pressure sensor and a
transmitter and is installed in each tire wheel. The
sensor measures the ...
Registration
In case of tire pressure warning ecu
replacement
Read id stored in the old ecu using the intelligent
tester.
In case of tire pressure warning valve and
transmitter and/or tire pre ...
Other materials:
Fuel tank
Components
Removal
Discharge fuel system pressure (see page
fu-9)
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.
...
Front occupant classification sensor lh circuit
malfunction
Description
The front occupant classification sensor lh circuit consists of the occupant
classification ecu and the
front occupant classification sensor lh.
Dtc b1780 is recorded when a malfunction is detected in the front occupant
classification sensor lh
circuit.
Wiring diagram
...
Center airbag sensor communication stop mode
Description
Wiring diagram
Inspection procedure
Notice:
Turn the ignition switch off before measuring the resistances of the
main wire and the branch
wire.
After the ignition switch is turned off, check that the key reminder
warning system and light
reminder warning system ...
