Toyota Tacoma 2015-2018 Service Manual: Data Signal Circuit between Radio Receiver and Extension Module

Toyota Tacoma 2015-2018 Service Manual / Audio / Video / Audio And Visual System / Data Signal Circuit between Radio Receiver and Extension Module

DESCRIPTION

The stereo component tuner assembly sends the image data signal to the radio and display receiver assembly via this circuit.

WIRING DIAGRAM

PROCEDURE

1.	CHECK NO. 1 NAVIGATION WIRE

(a) Disconnect the R33 radio and display receiver assembly connector.

(b) Disconnect the S53 stereo component tuner assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
S53-1 (USV4) - R33-1 (USV4)	Always	Below 1 Ω
S53-2 (US4-) - R33-2 (US4-)	Always	Below 1 Ω
S53-3 (US4+) - R33-3 (US4+)	Always	Below 1 Ω
S53-4 (UGO4) - R33-4 (UGO4)	Always	Below 1 Ω
S53-5 (USG4) - R33-5 (USG4)	Always	Below 1 Ω
S53-1 (USV4) - Body ground	Always	10 kΩ or higher
S53-2 (US4-) - Body ground	Always	10 kΩ or higher
S53-3 (US4+) - Body ground	Always	10 kΩ or higher
S53-4 (UGO4) - Body ground	Always	10 kΩ or higher
S53-5 (USG4) - Body ground	Always	10 kΩ or higher

Text in Illustration

Front view of No. 1 navigation wire connector

(to Radio and Display Receiver Assembly)

Front view of No. 1 navigation wire connector

(to Stereo Component Tuner Assembly)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPLACE NO. 1 NAVIGATION WIRE

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