Stereo Component Amplifier Power Source Circuit
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.
PROCEDURECHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - BATTERY AND BODY GROUND)
(a) Disconnect the N11 and N14 stereo component amplifier assembly connectors. |
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(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 |
*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 |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.

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