DESCRIPTION
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1532 |
When one of the conditions below is met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
After replacing the navigation receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary.
PROCEDURE
1. |
CHECK DTC |
(a) Clear the DTCs (See page ).
(b) Recheck for DTCs and check if the same DTC are output again.
OK:
No DTCs are output.
OK |
USE SIMULATION METHOD TO CHECK |
|
2. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - STEREO COMPONENT TUNER ASSEMBLY) |
(a) Disconnect the s1 and t1 navigation receiver assembly connectors.
(b) Disconnect the s2 and t2 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 |
---|---|---|
s1-1 (USV4) - s2-1 (USV4) |
Always |
Below 1 Ω |
s1-2 (US4-) - s2-2 (US4-) |
Always |
Below 1 Ω |
s1-3 (US4+) - s2-3 (US4+) |
Always |
Below 1 Ω |
s1-4 (UGD4) - s2-4 (UGD4) |
Always |
Below 1 Ω |
s1-5 (USG4) - s2-5 (USG4) |
Always |
Below 1 Ω |
t1-4 (+B2) - t2-4 (+B2) |
Always |
Below 1 Ω |
t1-3 (ACC2) - t2-3 (ACC2) |
Always |
Below 1 Ω |
t1-8 (GND2) - t2-8 (GND2) |
Always |
Below 1 Ω |
s1-1 (USV4) - Body ground |
Always |
10 kΩ or higher |
s1-2 (US4-) - Body ground |
Always |
10 kΩ or higher |
s1-3 (US4+) - Body ground |
Always |
10 kΩ or higher |
s1-4 (UGD4) - Body ground |
Always |
10 kΩ or higher |
s1-5 (USG4) - Body ground |
Always |
10 kΩ or higher |
t1-4 (+B2) - Body ground |
Always |
10 kΩ or higher |
t1-3 (ACC2) - Body ground |
Always |
10 kΩ or higher |
t1-8 (GND2) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS AND CONNECTOR |
|
3. |
REPLACE HARNESS AND CONNECTOR (LVDS COMMUNICATION LINE) |
(a) Replace the harness and connector (LVDS communication line).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs and check if the same DTC are output again.
OK:
No DTCs are output.
OK |
END |
|
4. |
REPLACE STEREO COMPONENT TUNER ASSEMBLY |
(a) Replace the stereo component tuner assembly (See page ).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs and check if the same DTC are output again.
OK:
No DTCs are output.
OK |
END |
NG |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
Terminals Of Ecu
TERMINALS OF ECU
1. AIR CONDITIONING AMPLIFIER
(a) Measure the voltage and resistance according to the value(s) in the table
below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
...
Poor Sound Quality in All Modes (Low Volume)
PROCEDURE
1.
CHECK AUDIO SETTINGS
(a) Set "Treble", "Mid" and "Bass" to the initial values and check that sound
is normal.
OK:
Malfunction disappears.
HINT:
Sound quality adjustment measure ...