Toyota RAV4 (XA40) 2013-2018 Service Manual: Multiplex communication circuit
Description
The air conditioning amplifier communicates data with the ecm and combination meter through the can communication system.
Wiring diagram
Inspection procedure
- Check dtc
- Clear the dtc (see page ac-31).
- Read the dtc (see page ac-31).
Result 
Go to can communication system
Bus ic communication malfunction
Description
The air conditioning harness connects the air conditioning amplifier and the
servos. The air conditioning
amplifier supplies power and sends operation instructions to each servo th ...
Air conditioning control panel does not operate
Description
This circuit consists of the air conditioning control and the air
conditioning amplifier. When the air
conditioning control is operated, signals are transmitted to the air
conditioni ...
Other materials:
Inspection
Inspect automatic transaxle oil panel
sub-assembly
Remove the magnets and use them to collect any
steel chips. Examine the chips and particles in the
pan and on the magnet to determine what type of
wear has occurred in the transaxle.
Steel (magnetic): bearing gear and plate ...
Check mode procedure
Hint:
Intelligent tester only:
compared to normal mode, check mode is more sensitive to
malfunctions. Therefore, check mode can detect the
malfunctions that cannot be detected by normal mode.
Notice:
All the stored dtcs and freeze frame data are erased if:
The ecm is changed from normal mo ...
Vsc warning light remains on
Description
The skid control ecu is connected to the combination meter via the can
communication system.
W/o multi information display:
if the skid control ecu stores any dtcs which relate to the vsc system, the vsc
warning light comes on
in the combination meter.
W/ multi information d ...
