Toyota CH-R Service Manual: Radio Receiver Power Source Circuit

Toyota CH-R Service Manual / Audio / Video / Audio And Visual System(for Radio Receiver Type) / Radio Receiver Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the radio receiver assembly.

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 (RADIO RECEIVER ASSEMBLY POWER SOURCE)

(a) Disconnect the radio receiver assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
F48-7 (GND1) - Body ground	Always	Below 1 Ω

*a	Front view of wire harness connector (to Radio Receiver Assembly)

Standard Voltage:

Tester Connection	Condition	Specified Condition
F48-4 (+B1) - F48-7 (GND1)	Always	11 to 14 V
F48-3 (ACC1) - F48-7 (GND1)	Ignition switch ACC	11 to 14 V

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

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