Toyota RAV4 (XA40) 2013-2018 Service Manual: On-vehicle inspection
- Inspect refrigerant pressure with manifold gauge set
- This method uses a manifold gauge set to locate problem areas. Read the manifold gauge pressure when these conditions are established. Test conditions:
- Temperature at the air inlet is 30 to 35°c (86 to 95°f).
- Engine is running at 1,500 rpm.
- All doors are fully open.
- Blower speed control switch is at hi.
- A/c switch is on.
Gauge readings (reference).
- Normally functioning refrigeration system
Gauge reading v
- The a/c system periodically changes between normal and improper function due to moisture in the refrigerant system.
- The a/c system does not function effectively due to insufficient cooling.
- The a/c system does not function effectively due to poor circulation of the refrigerant.
- The a/c system does not function intermittently because the refrigerant does not circulate.
- The a/c system does not function effectively due to overcharged refrigerant or insufficient cooling of the condenser.
- The a/c system does not function due to air in the refrigeration system.
Caution:
The low-pressure piping may be very hot and cause serious burns.
- The a/c system does not function effectively due to an expansion valve malfunction.
- The a/c system does not function due to a defective compressor.
Refrigerant
...
Replacement
discharge refrigerant from refrigeration system
Start up the engine.
Turn the a/c switch on.
Operate the cooler compressor with an engine
speed of approximately 1,000 rpm for 5 to 6 min ...
Other materials:
Snow mode switch (AWD
vehicles)
Snow mode can be selected
to suit the conditions when
driving on slippery road surfaces,
such as on snow.
System operation
â– Dynamic Torque Control
AWD vehicles
Press the snow mode switch.
When the switch is pressed, the
system switches to snow mode and
the snow mode indicator illuminates
on the ...
Disassembly
Remove idler pulley (see page em-23)
Remove oil dipstick
Remove oil dipstick guide (see page em-57)
Remove manifold stay (see page em-57)
Remove no. 2 Manifold stay (see page em-58)
Remove no. 1 Exhaust manifold heat
insulator (see page em-58)
Remove exhaust manifold converter subas ...
Active test
Hint:
Performing an active test enables components
including the relays, vsv (vacuum switching valve) and
actuators, to be operated without removing any parts.
The active test can be performed with the intelligent
tester. Performing the active test as the first step of
troubleshooting is one ...
