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

F139-1 (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 F139 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

F139-4 (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 thermistor assembly 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. This s ...

    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 > Washer Level Warning Switch: Inspection
    INSPECTION PROCEDURE 1. INSPECT LEVEL WARNING SWITCH ASSEMBLY HINT: This check should be performed with the level warning switch assembly installed on the washer jar. (a) Fill the washer jar with washer fluid. ...

    Toyota CH-R Service Manual > Brake Fluid: Bleeding
    BLEEDING CAUTION / NOTICE / HINT NOTICE: Move the shift lever to P and apply the parking brake before bleeding the brakes. Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brakes. If brake fluid leaks onto any painted surf ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2024 Copyright www.tochr.net
    0.011