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:

Side Auto Step LH Stowing Timeout (51-56)
DESCRIPTION When fully deploying or stowing the automatic running board takes more than 4 seconds, or when the side auto step motor hall sensor pulse signal exceeds the maximum pulse count, the side auto step ECU halts the operation of the automatic runni ...

Precaution
PRECAUTION 1. IGNITION SWITCH EXPRESSION HINT: The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. Expression Ign ...

© 2016-2023 | www.to4runner.net

0.1098