Toyota Tacoma manuals

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

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

Text in Illustration

*a

Front view of wire harness connector

(to Radio and Display 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 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 ...

Front Door Speaker
...

Other materials:

Diagnosis System
DIAGNOSIS SYSTEM 1. CHECK DLC3 (a) The vehicle's ECU uses the ISO 9141-2 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. Symbols (Terminal No.) Terminal Description Condition ...

ECM Communication Circuit Malfunction (C1203)
DESCRIPTION The circuit sends TRAC, A-TRAC and VSC control information from the skid control ECU (master cylinder solenoid) to the ECM, and engine control information from the ECM to the skid control ECU (master cylinder solenoid) via the CAN communication system. DTC Code ...

Washer Level Warning Switch
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT LEVEL WARNING SWITCH ASSEMBLY HINT: This check should be performed with the windshield washer motor and pump assembly installed on the washer jar. (a) Fill the washer jar with washer fluid. (b) ...

© 2011-2024 Copyright www.ttguide.net