Toyota RAV4 (XA40) 2013-2018 Service Manual: 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 diagnostic trouble code memory.
wiring diagram
Inspection procedure
- Inspect fuse (ecu-b2)
- Remove the ecu-b2 fuse from the engine room no. 2 Relay 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
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
cond ...
Other materials:
Vsc warning light does not come on
Description
Refer to the description of "vsc warning light remains on" (see page bc-139).
Wiring diagram
Refer to the vsc warning light circuit (see page bc-140).
Inspection procedure
Notice:
When replacing the abs and traction actuator, perform the zero point
calibration (see page ...
Blower resistor
On-vehicle inspection
Inspect blower motor control
Measure the resistance of the blower resistor.
Standard resistance
If the resistance is not as specified, replace the
blower motor control. ...
Installation
Install no. 2 Chain sub-assembly
Set the crankshaft key in the left horizontal position.
Turn the cutout of the drive shaft so that it faces
upward.
Align the yellow mark links with the timing marks of
each gear as shown in the illustration.
Install the sprockets onto ...
