Toyota 4Runner manuals

Toyota 4Runner: Stereo Component Amplifier Power Source Circuit

DESCRIPTION

This circuit provides power to the stereo component amplifier assembly.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - BATTERY AND BODY GROUND)

(a) Disconnect the N11 and N14 stereo component amplifier assembly connectors.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N14-2 (GND) - Body ground

Always

Below 1 Ω

N14-6 (GND2) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

N14-1 (+B) - N14-2 (GND)

Always

11 to 14 V

N14-3 (+B2) - N14-2 (GND)

Always

11 to 14 V

N11-12 (ACC) - N14-2 (GND)

Ignition switch ACC

11 to 14 V

Text in Illustration

*a

Front view of wire harness connector

(to Stereo Component Amplifier Assembly)


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

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