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:
System description
Description
The eps (electronic power steering) system generates
torque through the operation of the motor and the
reduction gear installed on the column shaft in order to
assist steering effort.
The power steering ecu determines directions and the
amount of assisting power in accordanc ...
Moon roof
Use the overhead switches
to open and close the moon
roof and tilt it up and down.
Operating the moon roof
â– Opening and closing
Opens the moon roof*
The moon roof stops slightly before
the fully open position to reduce
wind noise.
Press the switch again to fully open
the moon roof.
Close ...
Terminals of ecu (2006/01- )
Check air conditioning amplifier
Measure the voltage and resistance of the
connectors.
Hint:
Check from the rear of the connector while it is
connected to the air conditioning amplifier.
Hint:
*: For 2gr-fe
Using an oscilloscope, check waveform 1.
A/c compressor* ...
