Toyota RAV4 (XA40) 2013-2018 Service Manual: Air conditioning system (for manual air conditioning system)

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 diagnos ...

Precaution

If any of following conditions are met, keep engine idling with a/c on (engine speed at less than 2000 rpm) for at least 1 minute: Refrigerant gas has been refilled or a/c parts have ...

Other materials:

Symptom simulation
Hint: The most difficult case in troubleshooting is when no problem symptoms occur. In such a case, a thorough problem analysis must be carried out. A simulation of the same or similar conditions and environment in which the problem occurred in the customer's vehicle should be carried out. No ...

Check for intermittent problems
Check for intermittent problems Hint: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ecus can be detected by using the ecu data list function of an intelligent tester. Turn the ignition switch off and connect the intelligent test ...

Terminals of ecu
Check instrument panel junction block (main body ecu) Disconnect the ib and ie junction block connectors. Measure the voltage and resistance of the wire harness side connectors. Reconnect the ib and ie junction block connector. Measure the voltage of the wire harness ...