- The stereo component tuner assembly is not connected while the ignition switch is ON or ACC.
- Communication between the radio and display receiver assembly and the stereo component tuner assembly is not possible when the engine is started.
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJ5E |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 11/2017] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: B1532; LVDS Signal Malfunction (from Extension Module); 2016 - 2017 MY Sienna [12/2015 - 11/2017] | ||
|
DTC |
B1532 |
LVDS Signal Malfunction (from Extension Module) |
DESCRIPTION
The stereo component tuner assembly and the radio and display receiver assembly are connected by an LVDS communication line.
This DTC is stored when an LVDS communication error between the stereo component tuner assembly and the radio and display receiver assembly.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B1532 |
When either condition below is met: |
|
HINT:
Even if no malfunction is present, this DTC may be stored depending on the battery condition or engine start voltage.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
After replacing the radio and display receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary.
PROCEDURE
|
1. |
CHECK FOR DTC |
(a) Clear the DTCs (See page
![2016 - 2017 MY Sienna [12/2015 - 11/2017]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
).
(b) Check for DTCs (See page
).
OK:
No DTCs are output.
| OK |
|
USE SIMULATION METHOD TO CHECK (See page
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - STEREO COMPONENT TUNER ASSEMBLY) |
(a) Disconnect the V6 and Z3 radio and display receiver assembly connectors.
(b) Disconnect the V4 and Z2 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 |
|---|---|---|
|
V6-1 (USV4) - V4-1 (USV4) |
Always |
Below 1 Ω |
|
V6-2 (US4-) - V4-2 (US4-) |
Always |
Below 1 Ω |
|
V6-3 (US4+) - V4-3 (US4+) |
Always |
Below 1 Ω |
|
V6-4 (USO4) - V4-4 (USO4) |
Always |
Below 1 Ω |
|
V6-5 (USG4) - V4-5 (USG4) |
Always |
Below 1 Ω |
|
Z3-4 (+B2) - Z2-4 (+B2) |
Always |
Below 1 Ω |
|
Z3-3 (ACC2) - Z2-3 (ACC2) |
Always |
Below 1 Ω |
|
Z3-8 (GND2) - Z2-8 (GND2) |
Always |
Below 1 Ω |
|
V6-1 (USV4) - Body ground |
Always |
10 kΩ or higher |
|
V6-2 (US4-) - Body ground |
Always |
10 kΩ or higher |
|
V6-3 (US4+) - Body ground |
Always |
10 kΩ or higher |
|
V6-4 (USO4) - Body ground |
Always |
10 kΩ or higher |
|
V6-5 (USG4) - Body ground |
Always |
10 kΩ or higher |
|
Z3-4 (+B2) - Body ground |
Always |
10 kΩ or higher |
|
Z3-3 (ACC2) - Body ground |
Always |
10 kΩ or higher |
|
Z3-8 (GND2) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE NO. 1 NAVIGATION WIRE |
|
|
3. |
CHECK NO. 1 NAVIGATION WIRE (LVDS COMMUNICATION LINE) |
(a) Replace the No. 1 navigation wire with a known good one (See page
).
(b) Clear the DTCs (See page
).
(c) Check for DTCs (See page
).
OK:
No DTCs are output.
| OK |
|
END (NO. 1 NAVIGATION WIRE [LVDS COMMUNICATION LINE] WAS DEFECTIVE) |
|
|
4. |
CHECK STEREO COMPONENT TUNER ASSEMBLY |
(a) Replace the stereo component tuner assembly with a known good one (See page
).
(b) Clear the DTCs (See page
).
(c) Check for DTCs (See page
).
OK:
No DTCs are output.
| OK |
|
END (STEREO COMPONENT TUNER ASSEMBLY WAS DEFECTIVE) |
| NG |
|
|
|