Toyota RAV4 (XA40) 2013-2018 Service Manual: 4Wd control ecu communication stop mode
Description
Hint:
For vehicle with 4wd only.
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 are not in operation.
- Before measuring the resistance, leave the vehicle for at least 1 minute and do not operate the ignition switch, any switches or doors. If doors need to be opened in order to check connectors, open the doors and leave them open.
Hint:
Operating the ignition switch, any switches or any doors triggers related ecu and sensor communication with the can, which causes resistance variation.
- Check can bus line for disconnection (4wd control ecu branch wire)
- Disconnect the e57 4wd control ecu connector.
- Measure the resistance of the wire harness side connector.
Standard resistance
- Check wire harness (4wd control ecu - battery and body ground)
- Disconnect the e57 4wd control ecu connector.
- Measure the resistance of the wire harness side connector.
Standard resistance 
- Measure the voltage of the wire harness side connector.
Standard voltage
Replace 4wd control ecu
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 swi ...
Can bus line
Description
When any dtc for the can communication system is output, first measure the
resistance between the
terminals of the dlc3 to specify the trouble area, and check that there is not a
sho ...
Other materials:
How to proceed with troubleshooting (2006/01- )
Hint:
Use these procedures to troubleshoot the air conditioning
system
*: Use the intelligent tester.
Vehicle brought to workshop
Customer problem analysis and symptom check
Inspect battery voltage
Standard voltage:
11 to 14 v
If the voltage is below 11 v, rechar ...
Front passenger side seat belt warning light malfunction
Description
When the ignition switch is on, the center airbag sensor transmits front seat
inner belt status signals to
the combination meter through the can bus line. If the front passenger seat belt
is not fastened, the
heater control panel (automatic a/c) or clock (manual a/c) blinks the fr ...
Instrument cluster
For the purpose of explanation, the following illustrations display all
warning lights and indicators illuminated.
â– With 7-inch multi-information display
The display of the speedometer can be selected from two types,
analog or digital.
When analog speedometer is displayed
The units used on the m ...
