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:
Installation
INSTALLATION
PROCEDURE
1. REMOVE MONOLITHIC CONVERTER PROTECTOR
(a) Install the upper monolithic converter protector and lower monolithic converter
protector with the 2 bolts and 2 nuts.
Torque:
11 N·m {107 kgf·cm, 8 ft·lbf}
(b) Install the clamp with the bolt as shown in the ...
Short to +B in Buzzer (C1ABD,C1ABE)
DESCRIPTION
DTC C1ABD is stored when the blind spot monitor sensor RH detects a
+B short in rear cross traffic alert buzzer (blind spot monitor buzzer)
circuit.
DTC C1ABE is stored when the blind spot monitor sensor RH detects a
ground short or open in rear cross traffic aler ...
Motor Power Supply Voltage Circuit (C142B-C146D)
DESCRIPTION
The motor relay and motor fail-safe relay are built into the brake actuator assembly.
During ABS, TRAC, VSC, or brake assist operation, the skid control ECU (brake
actuator assembly) turns on the motor relay to run the pump motor in the brake actuator
assembly.
When a motor system ...
