Toyota Tacoma 2015-2018 Service Manual: 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 system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - BATTERY AND BODY GROUND) |
|
(a) Disconnect the N24 and N25 navigation receiver assembly connectors. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
N24-7 (GND1) - 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 |
|---|---|---|
|
N24-4 (+B1) - N24-7 (GND1) |
Always |
11 to 14 V |
|
N24-3 (ACC1) - N24-7 (GND1) |
Ignition switch ACC |
11 to 14 V |
|
N25-1 (IG) - N24-7 (GND1) |
Ignition switch ON |
11 to 14 V |
|
*a |
Front view of wire harness connector (to Navigation Receiver Assembly) |
| OK | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Microphone Circuit between Microphone and Radio Receiver
DESCRIPTION
The navigation receiver assembly and telephone microphone assembly are connected
to each other using the microphone connection detection signal lines.
Using this circuit, the navigatio ...
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 ...
Other materials:
Inspection
INSPECTION
PROCEDURE
1. INSPECT SHIFT SOLENOID VALVE SL1
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Component without harness connected
(Shift Solenoid Valve SL1)
Standa ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when deciding whether a part
is faulty or not.
HINT:
Using the Techstream to read the Data List allows t ...
Fuel Tank Cap
Inspection
INSPECTION
PROCEDURE
1. INSPECT FUEL TANK CAP ASSEMBLY
(a) Check the appearance of the fuel tank cap assembly.
(1) Check that there is no deformation or damage to the fuel tank cap assembly
or fuel tank cap gasket.
*1
Fuel Tank Cap Gasket
If the ...
