Toyota Tacoma (2015-2018) Service Manual: Stereo Component Amplifier Power Source Circuit
DESCRIPTION
This circuit provides power to the stereo component amplifier assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
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 POWER SOURCE) |
|
(a) Disconnect the 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 |
|---|---|---|
|
S24-6 (GND) - Body ground |
Always |
Below 1 Ω |
|
S24-7 (E) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
S31-1 (+B) - S24-6 (GND) |
Always |
11 to 14 V |
|
S31-5 (+B2) - S24-6 (GND) |
Always |
11 to 14 V |
|
S23-12 (ACC) - S24-6 (GND) |
Ignition switch ACC |
11 to 14 V |
|
*a |
Front view of wire harness connector (to Stereo Component Amplifier Assembly) |
| OK | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS AND CONNECTOR |
Radio Receiver Power Source Circuit
DESCRIPTION
This is the power source circuit to operate the navigation receiver assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this s ...
Other materials:
Confirm Vehicle Headunit Functionality
PROCEDURE
1.
CHECK CUSTOMER'S CELLULAR PHONE COMPATIBILITY
(a) Go to TIS "Bluetooth" Compatibility Portal and check if the cellular phone
is compatible.
Result
Result
Proceed to
Cellular phone is compatible
...
Security Indicator Light Does not Blink
DESCRIPTION
The transponder key ECU assembly blinks the security indicator light
when the immobiliser is set (no key is in the ignition key cylinder).
w/ Theft Deterrent System:
The main body ECU (multiplex network body ECU) blinks the security indicator
light when the thef ...
VSC OFF Indicator Light Remains ON
DESCRIPTION
In 2WD mode:
Operation of the VSC OFF switch changes the vehicle between normal mode,
TRAC OFF mode (AUTO LSD mode) and VSC OFF mode. During normal mode, pressing
the VSC OFF switch for a short amount of time changes the vehicle to TRAC
OFF mode (AUTO LSD mode), TR ...
