Toyota Yaris: Active Noise Control System / Power Source Circuit

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Audio & Visual & Telematics / Audio / Video / Active Noise Control System / Power Source Circuit

DESCRIPTION

This circuit is the power source circuit for the stereo component equalizer assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT EQUALIZER ASSEMBLY POWER SOURCE)

(a) Disconnect the O131 stereo component equalizer assembly connector.

*a

Front view of wire harness connector

(to stereo component equalizer assembly)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

O131-15 (+B) - Body ground

Ignition switch off

10.5 to 16 V

O131-29 (IGP) - Body ground

Ignition switch ON

11 to 14 V

O131-14 (ACC) - Body ground

Ignition switch ACC

10.5 to 16 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

O131-30 (GND) - Body ground

Always

Below 1 Ω

Result

Proceed to

OK

A

NG (except IGP circuit)

B

NG (for IGP circuit)

C

A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

B

GO TO STOP AND START SYSTEM

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

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