| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000001900M |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier |
DESCRIPTION
The radio and display receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit.
The sound signal that is sent is amplified by the stereo component amplifier assembly, and then is sent to the speakers.
If there is an open or short in this circuit, sound cannot be heard from the speakers even if the stereo component amplifier assembly or speakers are not malfunctioning.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY) |
(a) Disconnect the D198 radio and display receiver assembly connector.
(b) Disconnect the L56 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 |
|---|---|---|
|
L56-5 (R+) - D198-1 (FR+) |
Always |
Below 1 Ω |
|
L56-4 (R-) - D198-6 (FR-) |
Always |
Below 1 Ω |
|
L56-3 (L+) - D198-2 (FL+) |
Always |
Below 1 Ω |
|
L56-2 (L-) - D198-7 (FL-) |
Always |
Below 1 Ω |
|
L56-6 (SLD) - Body ground |
Always |
10 kΩ or higher |
|
L56-5 (R+) or D198-1 (FR+) - Body ground |
Always |
10 kΩ or higher |
|
L56-4 (R-) or D198-6 (FR-) - Body ground |
Always |
10 kΩ or higher |
|
L56-3 (L+) or D198-2 (FL+) - Body ground |
Always |
10 kΩ or higher |
|
L56-2 (L-) or D198-7 (FL-) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (See page
|
![2018 MY Sienna [11/2017 - 08/2018]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE](/t3Portal/stylegraphics/info.gif)
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|