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:

System description
General The air conditioning system has the following features: In accordance with the temperature set using the temperature control switch, the air conditioning amplifier determines the outlet temperature based on the input signals from various sensors. In addition, corre ...

Drl relay circuit
Description The main body ecu controls the daytime running light no. 2 Relay (marking: drl no.2). Wiring diagram Inspection procedure Inspect daytime running light relay (marking: drl no. 2, Drl no. 3, Drl no. 4) Remove the no. 2 Relay, no. 3 Relay and no. 4 Relay from th ...

Ecm power source circuit
Description When the ignition switch is turned on, the battery voltage is applied to the igsw of the ecm. The output signal from the mrel terminal of the ecm causes a current to flow to the coil, closing the contacts of the integration relay (efi main relay) and supplying power to either term ...