Toyota Corolla Cross: GNSS Antenna Circuit Short to Ground (B154711,B154713)
DESCRIPTION
These DTCs are stored when the radio and display receiver assembly
detects an open or short in GNSS antenna assembly.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
DTC Output from
|
Priority
|
B154711
|
GNSS Antenna Circuit Short to Ground
|
Short in GNSS antenna assembly
(2 trip detection logic)
|
- Navigation antenna assembly
- Radio and display receiver assembly
- Antenna cord sub-assembly
|
Navigation System
|
A
|
B154713
|
GNSS Antenna Circuit Open
|
Open in GNSS antenna assembly
(2 trip detection logic)
|
- Navigation antenna assembly
- Radio and display receiver assembly
- Antenna cord sub-assembly
|
Navigation System
|
A
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection
or maintenance, performing initialization, registration or calibration may be needed.
Click here
PROCEDURE
1.
|
INSPECT NAVIGATION ANTENNA ASSEMBLY
|
Click here
NG |
|
REPLACE NAVIGATION ANTENNA ASSEMBLY
|
OK |
|
|
2.
|
INSPECT ANTENNA CORD SUB-ASSEMBLY
|
(a) Disconnect the navigation antenna assembly connector.
(b) Disconnect the radio and display receiver assembly connector.
(c) Measure the resistance according to the value(s) in
the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
D-3 - A-1
|
Always
|
Below 1 Ω
|
D-3a - A-1a
|
Always
|
Below 1 Ω
|
D-3a - Body ground
|
Always
|
10 kΩ or higher
|
A-1a - Body ground
|
Always
|
10 kΩ or higher
|
Result:
|
|
*a
|
Component without harness connected
(to Navigation Antenna Assembly)
|
*b
|
Component without harness connected
(to Radio and Display Receiver Assembly)
|
|
|
OK |
|
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
|
NG |
|
REPLACE ANTENNA CORD SUB-ASSEMBLY
|
READ NEXT:
DESCRIPTION
The telephone microphone assembly RH is connected to the radio
and display receiver assembly via voice recognition microphone 2 signal detection
line.
This DTC is stored when the rad
DESCRIPTION
These DTCs are stored when a malfunction occurs in the radio
and display receiver assembly.
DTC No.
Detection Item
DTC Detection Condition
T
DESCRIPTION
The telephone microphone assembly LH is connected to the radio
and display receiver assembly via voice recognition microphone 1 signal detection
line.
This DTC is stored when the rad
SEE MORE:
Listed below are the general
maintenance items that
should be performed at the
intervals specified in the
"Owner's Warranty Information
Booklet" or "Owner's
Manual Supplement/Scheduled
Maintenance Guide". It
is recommended that any
problem you notice should
be brought to the attention
of your Toyota
DATA LIST / ACTIVE TEST
DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are
reference values. Do not depend solely on these reference values when deciding whether
a part is faulty or not.
HINT:
Using the GTS to read the Data List allows the values