Toyota CH-R Service Manual: Back-up Power Source Circuit

DESCRIPTION

The back-up power source circuit for the air conditioning amplifier assembly is shown below. Power is supplied even when the ignition switch is off. This power is used for diagnostic trouble code memory, etc.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - POWER SOURCE)

(a) Disconnect the air conditioning amplifier assembly connector.

*a

Front view of wire harness connector

(to Air Conditioning Amplifier Assembly)

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

F72-1 (B) - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND)

(a) Disconnect the F72 air conditioning amplifier assembly connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

F72-29 (GND) - Body ground

Always

Below 1 Ω

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

    Ambient Temperature Display System
    DESCRIPTION The outside temperature sensor is installed in front of the cooler condenser assembly to detect the ambient temperature which is used to control the air conditioning system AUTO mode. ...

    IG Power Source Circuit
    DESCRIPTION Power source voltage is supplied to the air conditioning amplifier assembly when the ignition switch is turned ON. This power is used for operating the air conditioning amplifier asse ...

    Other materials:

    Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Terminals Of Ecu
    TERMINALS OF ECU RADIO AND DISPLAY RECEIVER ASSEMBLY *A w/ Navigation System *B w/ Manual (SOS) Switch *C w/o Navigation System *D for Satellite Radio Terminal No. (Symbol) ...

    KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual > Driving the hybrid/plug-in hybrid vehicle: EV button
    Whenever you press the EV button, Plug-in hybrid system drive mode will be changed in sequential as: Automatic (AUTO) mode - Hybrid (CS) mode - Electric (CD) mode. Press and hold the EV button to change to EV+ mode. Each time the mode is changed a corresponding LED is displayed on the ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual

    © 2017-2023 Copyright www.tochr.net
    0.0119