Toyota Tacoma manuals

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

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

Text in Illustration

*a

Front view of wire harness connector

(to Navigation Receiver Assembly)

OK

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:

Invalid Data Received From Vehicle Dynamics Control Module (U0416)
DESCRIPTION This DTC is detected if a wheel speed malfunction signal is sent from the skid control ECU (brake actuator assembly). DTC No. Detection Item DTC Detection Condition Trouble Area U0416 Invalid Data Received From V ...

Rear Leaf Spring
Components COMPONENTS ILLUSTRATION Disassembly DISASSEMBLY PROCEDURE 1. REMOVE BUSH (a) Fix the spring in a vise. (b) Using a hack saw, cut both ends off the bushes. (c) Using SST and a press, press out the 2 bushes. SST: 09950-60010 09951-00350 SST: 09950-70010 ...

Steering Angle Sensor Unusual Bank Angle Detected (C1440)
DESCRIPTION If the skid control ECU (master cylinder solenoid) determines that the vehicle is being driven at a steep bank angle, the skid control ECU (master cylinder solenoid) stores DTC C1440 while VSC operation is temporarily disabled. It is not a malfunction if the system and sensor circ ...

© 2011-2025 Copyright www.ttguide.net