Toyota RAV4 (XA40) 2013-2018 Service Manual: Ecu power source circuit
Description
This is the power source for the tire pressure warning ecu.
Wiring diagram
Inspection procedure
Notice:
It is necessary to register an id code after replacing the tire pressure monitor valve and/or the tire pressure warning ecu (see page tw-9).
- Inspect fuse (ecu-ig1)
- Remove the ecu-ig1 fuse from the instrument panel junction block.
- Measure the resistance of the fuse.
Standard resistance:
below 1 
- Inspect ig1 relay
- Remove the ig1 relay from the instrument panel junction block.
- Measure the resistance of the relay.
Standard resistance
- Inspect wire harness (ecu - battery and body ground)
- Disconnect the e56 ecu connector.
- Measure the voltage of the wire harness side connector.
Standard voltage 
- Measure the resistance of the wire harness side connector.
Standard resistance 
Proceed to next circuit inspection shown in problem symptoms table
Tire pressure warning light circuit
Description
If the tire pressure warning ecu detects trouble, the tire pressure warning
light turns on and tire pressure
monitor is canceled at the same time. At this time, the ecu records a dtc i ...
Tire pressure warning receiver (w/ antenna)
Components
...
Other materials:
Listening to a usb
memory device
Connecting a usb memory device enables you to enjoy music
from the vehicle speakers.
Touch “usb” on the audio source selection screen.
Connecting a usb memory device
Audio control screen
Pressing the “audio” button displays the audio control screen from
any screens of the selected so ...
Blower motor
On-vehicle inspection
Inspect blower motor (for automatic air conditioning system)
Disconnect the blower motor connector.
Connect the positive (+) lead from the battery to
terminal 1 and negative (-) lead to terminal 2, and
then check that the motor operates smoothly.
If the ...
Adding engine oil
■ Checking the oil type and
preparing the items needed
Make sure to check the oil type
and prepare the items needed
before adding oil.
Engine oil selection
Oil quantity (Low level mark
Refill upper limit mark)
1.6 qt. (1.5 L, 1.3 Imp. qt.)
Item
Clean funnel
■ Adding engine oil
If the oi ...
