Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ7W
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Data Signal Circuit between Navigation Receiver Assembly and Extension Module; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

Data Signal Circuit between Navigation Receiver Assembly and Extension Module

DESCRIPTION

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

WIRING DIAGRAM

PROCEDURE

1.

CHECK NAVIGATION WIRE

(a) Disconnect the navigation receiver assembly connector.

(b) Disconnect the stereo component tuner assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

V4-1 (USV4) - V3-1 (USV4)

Always

Below 1 Ω

V4-2 (US4-) - V3-2 (US4-)

Always

Below 1 Ω

V4-3 (US4+) - V3-3 (US4+)

Always

Below 1 Ω

V4-4 (USO4) - V3-4 (USO4)

Always

Below 1 Ω

V4-5 (USG4) - V3-5 (USG4)

Always

Below 1 Ω

V4-1 (USV4) - Body ground

Always

10 kΩ or higher

V4-2 (US4-) - Body ground

Always

10 kΩ or higher

V4-3 (US4+) - Body ground

Always

10 kΩ or higher

V4-4 (USO4) - Body ground

Always

10 kΩ or higher

V4-5 (USG4) - Body ground

Always

10 kΩ or higher

Text in Illustration

*a

Front view of navigation wire connector

(to Navigation Receiver Assembly)

*b

Front view of navigation wire connector

(to Stereo Component Tuner Assembly)
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

(See page 2016 MY Sienna [12/2015 - 08/2016]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 MY Sienna [08/2016 - 11/2017]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE )
NG

REPLACE NAVIGATION WIRE