Toyota CH-R Service Manual: 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 assembly, servo motors, 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 - IG+ 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

Switch Condition

Specified Condition

F72-5 (IG+) - Body ground

Ignition switch off

Below 1 V

F72-5 (IG+) - Body ground

Ignition switch ON

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

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

(a) 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

    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 ...

    Air Conditioning Unit(for Denso Made)
    ...

    Other materials:

    Toyota CH-R Service Manual > Audio And Visual System(for Radio Receiver Type): Radio Broadcast cannot be Received or Poor Reception
    PROCEDURE 1. CHECK RADIO RECEIVER ASSEMBLY (a) Check the radio automatic station search function. (1) Check the radio automatic station search function by activating it. Result Proceed to Automatic station search function doe ...

    Toyota CH-R Service Manual > Automatic High Beam System: Automatic High Beam System (B124B)
    DESCRIPTION This DTC is stored when the main body ECU (multiplex network body ECU) detects malfunctions in the automatic high beam system. DTC No. Detection Item DTC Detection Condition Trouble Area B124B Automatic High Beam ...

    © 2017-2021 Copyright www.tochr.net
    0.0153