Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ6U
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier

DESCRIPTION

The navigation receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier assembly, and then is sent to the speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, DCM (telematics transceiver)*1 or speakers.

  • *1: w/ Safety Connect System

WIRING DIAGRAM

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)

(a) Disconnect the D57 navigation receiver assembly connector.

(b) Disconnect the L5 stereo component amplifier assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

L5-5 (R+) - D57-1 (FR+)

Always

Below 1 Ω

L5-4 (R-) - D57-5 (FR-)

Always

Below 1 Ω

L5-3 (L+) - D57-2 (FL+)

Always

Below 1 Ω

L5-2 (L-) - D57-6 (FL-)

Always

Below 1 Ω

L5-6 (SLD) - Body ground

Always

10 kΩ or higher

L5-5 (R+) - Body ground

Always

10 kΩ or higher

L5-4 (R-) - Body ground

Always

10 kΩ or higher

L5-3 (L+) - Body ground

Always

10 kΩ or higher

L5-2 (L-) - Body ground

Always

10 kΩ or higher

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

REPAIR OR REPLACE HARNESS OR CONNECTOR