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

Toyota CH-R Service Manual / Navigation / Multi Info Display / Navigation System / Radio Receiver Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the radio and display 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 AND DISPLAY RECEIVER ASSEMBLY - POWER SOURCE)

(a) Disconnect the F129 and F131 radio and display receiver assembly connectors.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
F129-1 (GND1) - Body ground	Always	Below 1 Ω

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
F129-4 (+B1) - F129-1 (GND1)	Always	11 to 14 V
F129-15 (ACC1) - F129-1 (GND1)	Engine switch on (ACC)	11 to 14 V
F131-19 (IG) - F129-1 (GND1)	Engine switch on (IG)	11 to 14 V

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Microphone Circuit

DESCRIPTION The radio and display receiver assembly, map light assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines. Usin ...

Other materials:

Toyota CH-R Service Manual > Smart Key System(for Entry Function): Parts Location
PARTS LOCATION ILLUSTRATION *1 ECM - - ILLUSTRATION *1 BACK DOOR COURTESY SWITCH *2 BACK DOOR LOCK ASSEMBLY *3 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH ...

Toyota CH-R Service Manual > Front Brake: Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE FRONT DISC BRAKE PISTON (a) Place a piece of cloth between the front disc brake piston and front disc brake cylinder assembly. *a Cloth ...

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

Microphone Circuit

Park Assist / Monitoring

Other materials:

Toyota CH-R Owners Manual

Toyota CH-R Service Manual