Toyota RAV4 manuals

Toyota RAV4 Service Manual: Multiplex communication circuit

Toyota RAV4. Multiplex communication circuit


Description

The air conditioning amplifier communicates data with the ecm and combination meter through the can communication system.

Toyota RAV4. Multiplex communication circuit


Wiring diagram

Toyota RAV4. Multiplex communication circuit


Inspection procedure

  1. Check dtc

  1. Clear the dtc (see page ac-31).
  2. 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:

All doors cannot be locked / unlocked simultaneously
Description The main body ecu receives switch signals from the door control switch on the power window regulator master switch, door control switch and driver side door key cylinder, and activates the door lock motor on each door accordingly. Wiring diagram Inspection procedure Perf ...

High beam automatic turning on or off conditions
When all of the following conditions are fulfilled, high beam will be automatically turned on: Vehicle speed is above approximately 21 mph (34 km/h). The area ahead of the vehicle is dark. There are no oncoming or preceding vehicles with headlights or tail lights turned on. There are fe ...

Cooling fan relay
On-vehicle inspection Disconnect cable from negative battery terminal Caution: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. Remove engine room no. 2 Relay block cover Inspect ...

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