Toyota Venza: LVDS Signal Malfunction (from Extension Module) (B1532)
DESCRIPTION
The stereo component tuner assembly and the navigation receiver assembly are connected by the LVDS communication line.
This DTC is stored when an LVDS communication error occurs between the stereo component tuner assembly and the navigation receiver assembly.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B1532 |
When any of the following conditions 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 stereo component tuner assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary.
PROCEDURE
|
1. |
CHECK NAVIGATION WIRE (STEREO COMPONENT TUNER ASSEMBLY POWER SOURCE) |
(a) Disconnect the V7 stereo component tuner assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V7-8 (GND2) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V7-4 (+B2) - V7-8 (GND2) |
Always |
11 to 14 V |
|
V7-3 (ACC2) - V7-8 (GND2) |
Ignition switch ACC |
11 to 14 V |
| NG | .gif) |
GO TO STEP 4 |
|
.gif)
|
2. |
REPLACE NAVIGATION WIRE |
(a) Replace the navigation wire with a new or known good one (See page
.gif)
).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs and check that no DTCs are output.
OK:
No DTCs are output.
| OK | |
END |
|
|
3. |
REPLACE STEREO COMPONENT TUNER ASSEMBLY |
(a) Replace the stereo component tuner assembly with a new or known good one
(See page ).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs and check that no DTCs are output.
OK:
No DTCs are output.
| OK | |
END |
| NG | |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
|
4. |
CHECK NAVIGATION WIRE |
(a) Remove the navigation wire (See page ).
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance::
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V1-4 (+B2) - V7-4 (+B2) |
Always |
Below 1 Ω |
|
V1-3 (ACC2) - V7-3 (ACC2) |
Always |
Below 1 Ω |
|
V1-8 (GND2) - V7-8 (GND2) |
Always |
Below 1 Ω |
|
V1-4 (+B2) - Body ground |
Always |
10 kΩ or higher |
|
V1-3 (ACC2) - Body ground |
Always |
10 kΩ or higher |
|
V1-8 (GND2) - Body ground |
Always |
Below 1 Ω |
| OK | |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
| NG | |
REPLACE NAVIGATION WIRE |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Navigation System
DTC Code
Detection Item
See page
B1532
LVDS Signal Malfunction (from Extension Module)
...
Voice Recognition Microphone Disconnected (B1579)
DESCRIPTION
The navigation receiver assembly and inner rear view mirror assembly (amplifier
microphone assembly) are connected to each other using the microphone connection
detection signal lines ...
Other materials about Toyota Venza:
System Description
SYSTEM DESCRIPTION
1. FRONT POWER SEAT CONTROL SYSTEM DESCRIPTION
The driver seat is equipped with slide, reclining, lifter, front vertical,
and lumbar support adjustment functions.
The memory call function uses the key ID code of the key to m ...
Rear Occupant Classification Sensor RH Circuit Malfunction (B1783)
DESCRIPTION
The rear occupant classification sensor RH circuit consists of the occupant classification
ECU and rear occupant classification sensor RH.
DTC B1783 is recorded when a malfunction is detected in the rear occupant classification
sensor RH circ ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE BOOSTER ASSEMBLY
(a) Airtightness check
(1) Start the engine and stop it after 1 or 2 minutes. Slowly depress
the brake pedal several times.
HINT:
If the pedal can be depressed to the ...
0.1744