Toyota RAV4 (XA40) 2013-2018 Service Manual: Ig power supply voltage malfunction
Description
The power steering ecu distinguishes the ignition switch status as on or off
through the ig power
source circuit.
Wiring diagram
Inspection procedure
- Read value of intelligent tester (ig power supply)
- Connect the intelligent tester (with can vim) to the dlc3.
- Turn the ignition switch on.
- Select the item "ig supply" in the data list and read the value displayed on the intelligent tester.
- Inspect fuse (ecu-ig1)
- Remove the ecu-ig1 fuse from the instrument panel junction block.
- Measure the resistance of the fuse.
Ok:
below 1 
- Check harness and connector (battery - power steering ecu)
- Disconnect the e18 and a1 power steering ecu connectors.
- Measure the voltage of the wire harness side connectors.
Standard voltage
Replace power steering ecu
Ecu malfunction
Description
Inspection procedure
If the power steering ecu detects these dtcs, it will shut off the motor
relay circuit (built into the power
steering ecu) and stop power assist. However, pow ...
Pig power supply voltage malfunction
Description
When a problem occurs in the system, the power source relay circuit is shut
off to stop the power assist.
Wiring diagram
Inspection procedure
Read value of intelligent ...
Other materials:
How to proceed with troubleshooting
Hint:
Use these procedures to troubleshoot the lighting 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.
Refer to pr ...
Center airbag sensor assembly malfunction
Description
The center airbag sensor consists of the airbag sensor, the safing sensor,
the drive circuit, the diagnosis
circuit and the ignition control.
If the center airbag sensor receives signals from the airbag sensor, it
determines whether or not the srs
should be activated.
Dt ...
Rear window and outside rear view mirror defoggers
These features are used to defog the rear window, and to
remove raindrops, dew and frost from the outside rear view mirrors
(if equipped).
Vehicles with a manual air conditioning system
On/off
The defoggers will automatically
turn off after approximately 15 minutes.
Vehicles with an au ...
