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:

Test mode procedure
Test mode check Hint: When entering the test mode, the tire pressure warning ecu sets all the test dtcs first. After completing the test mode for each inspection item, the dtcs that are determined normal by the tire pressure warning ecu will be erased. The dtcs for other inspec ...

Vehicle speed sensor "A"
description The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ecu. The skid control ecu converts these wheel speed signals into a 4-pulse signal and outputs it to the ecm via the combination meter. The ecm determines the vehicle speed based o ...

Fog light relay
On-vehicle inspection Inspect front fog light relay Remove the front fog relay from the no. 6 Relay block. Measure the resistance of the relay. Standard resistance If the result is not as specified, replace the relay. ...

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