Toyota RAV4 (XA40) 2013-2018 Service Manual: Ig power source circuit
Description
This is the main power source supplied to the air conditioning amplifier when the ignition switch is on (ig). This power source is used for operating components, such as the air conditioning amplifier and servo motors.
Wiring diagram
Inspection procedure
- Inspect fuse (ecu-ig2)
- Remove the ecu-ig2 fuse from the instrument panel junction block.
- Measure the resistance of the fuse.
Standard resistance:
below 1 
- Check wire harness (air conditioning amplifier - battery)
- Disconnect the e37 amplifier connector.
- Measure the voltage of the wire harness side connector.
Standard voltage
- Check wire harness (air conditioning amplifier - body ground)
- Disconnect the e37 amplifier connector.
- Measure the resistance of the wire harness side connector.
Standard resistance
Proceed to next circuit inspection shown in problem symptoms table
Compressor circuit
Description
When the a/c switch is turned on, the magnetic clutch on signal is sent from
the air conditioning
amplifier. Then the mg clt relay turns on to operate the magnetic clutch.
Wiring diag ...
Back-up power source circuit
Description
This is the back-up power source circuit for the air conditioning amplifier.
Power is supplied even when the
ignition switch is turned off and is used for functions such as the diagnos ...
Other materials:
Receiving a call
When a call is received, the following screen is displayed
together with a sound.
To answer the phone
Press the switch on the
steering
wheel or select .
To refuse a call
Press the switch on the
steering wheel or select .
To adjust the incoming call volume
...
Parking brake assembly
Components
Disassembly
Hint:
Use the same procedures for the lh side and rh side.
The procedures listed below are for the lh side.
Remove rear wheel
Disconnect rear disc brake cylinder
mounting lh (see page br-55)
Remove parking brake shoe adjusting
hole plug
Remove t ...
If the vehicle battery is discharged
The following procedures
may be used to start the
engine if the vehicle's battery
is discharged.
You can also call your
Toyota dealer or a qualified
repair shop.
Restarting the engine
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start you ...
