Toyota 4Runner manuals

Toyota 4Runner: Data Signal Circuit between Radio Receiver and Extension Module

Toyota 4Runner Service Manual / Audio / Visual / Telematics / Audio / Video / Audio And Visual System / Data Signal Circuit between Radio Receiver and Extension Module

DESCRIPTION

The stereo component tuner assembly sends the sound data signal or image data signal from a device to the radio and display receiver assembly via this circuit.

WIRING DIAGRAM


PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT TUNER ASSEMBLY)

(a) Disconnect the s5 and t3 radio and display receiver assembly connectors.

(b) Disconnect the s2 and t2 stereo component tuner assembly connectors.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

s5-1 (USV4) - s2-1 (USV4)

Always

Below 1 Ω

s5-2 (US4-) - s2-2 (US4-)

Always

Below 1 Ω

s5-3 (US4+) - s2-3 (US4+)

Always

Below 1 Ω

s5-4 (UGD4) - s2-4 (UGD4)

Always

Below 1 Ω

s5-5 (USG4) - s2-5 (USG4)

Always

Below 1 Ω

t3-4 (+B2) - t2-4 (+B2)

Always

Below 1 Ω

t3-3 (ACC2) - t2-3 (ACC2)

Always

Below 1 Ω

t3-8 (GND2) - t2-8 (GND2)

Always

Below 1 Ω

s5-1 (USV4) - Body ground

Always

10 kΩ or higher

s5-2 (US4-) - Body ground

Always

10 kΩ or higher

s5-3 (US4+) - Body ground

Always

10 kΩ or higher

s5-4 (UGD4) - Body ground

Always

10 kΩ or higher

s5-5 (USG4) - Body ground

Always

10 kΩ or higher

t3-4 (+B2) - Body ground

Always

10 kΩ or higher

t3-3 (ACC2) - Body ground

Always

10 kΩ or higher

t3-8 (GND2) - Body ground

Always

10 kΩ or higher


NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

2.

REPLACE NO. 1 NAVIGATION WIRE

(a) Replace the No. 1 navigation wire (See page ).


(b) Check that the malfunction disappears.

OK:

Malfunction disappears.


OK

END (NO. 1 NAVIGATION WIRE IS DEFECTIVE)


NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Data Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION The No. 1 stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the radio and display receiver assembly via this circuit. WIRING DIAGRAM ...

Reverse Signal Circuit
DESCRIPTION The radio and display receiver assembly receives a reverse signal from the park/neutral position switch assembly. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS A ...

Other materials about Toyota 4Runner:

Engine Immobiliser System Malfunction (B2799)
DESCRIPTION This DTC is stored when one of the following occurs: 1) the ECM detects errors in its own communications with the ID code box; 2) the ECM detects errors in the communication lines; or 3) the ECU communication ID between the ID code box and E ...

Customize Parameters
CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH TECHSTREAM NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current settings before customizing. ...

© 2016-2024 | www.to4runner.net

0.0186