Toyota Tacoma 2015-2018 Service Manual: Radio Receiver Power Source Circuit
DESCRIPTION
This is the power source circuit to operate the radio and display 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 (RADIO AND DISPLAY RECEIVER ASSEMBLY - BATTERY AND BODY GROUND) |
|
(a) Disconnect the radio and display receiver assembly connectors. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R30-7 (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 |
|---|---|---|
|
R30-4 (+B1) - R30-7 (GND1) |
Always |
11 to 14 V |
|
R30-3 (ACC1) - R30-7 (GND1) |
Ignition switch ACC |
11 to 14 V |
|
R31-1 (IG) - R30-7 (GND1) |
Ignition switch ON |
11 to 14 V |
|
*a |
Front view of wire harness connector (to Radio and Display 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 radio and display receiver assembly and telephone microphone assembly are
connected to each other using the microphone connection detection signal lines.
Using this circuit, the ra ...
Other materials:
Installation
INSTALLATION
CAUTION / NOTICE / HINT
CAUTION:
Some of these service operations affect the SRS airbag system. Read the precautionary
notices concerning the SRS airbag system before servicing (See page
).
PROCEDURE
1. INSTALL SIDE AIRBAG SENSOR ASSEMBLY
(a) Confirm that the ignition switch i ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
NOTICE:
Release the vacuum from booster by depressing the brake pedal several times.
Then remove the brake master cylinder from brake booster.
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnect ...
Data List / Active Test
DATA LIST / ACTIVE TEST
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 the ...