Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000026K8D |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 -
] |
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Single Knob Type): B154711,B154713; GNSS Antenna Circuit Short to Ground; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ] |
DTC
|
B154711
|
GNSS Antenna Circuit Short to Ground
|
DTC
|
B154713
|
GNSS Antenna Circuit Open
|
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*1
-
No. 2 Antenna cord sub-assembly*2
|
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*1
-
No. 2 Antenna cord sub-assembly*2
|
Navigation System
|
A
|
-
*1: for Sedan Model
-
*2: for Hatchback Model
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
OK
|
|
|
(a) Choose the model to be inspected.
Result
|
Proceed to
|
for Hatchback Model
|
A
|
for Sedan Model
|
B
|
A
|
|
|
3.
|
INSPECT NO. 2 ANTENNA CORD SUB-ASSEMBLY
|
(a) Disconnect the navigation antenna assembly connector.
|
|
*a
|
Front view of No. 2 antenna cord sub-assembly connector
(to Navigation Antenna Assembly)
|
|
|
(b) Disconnect the radio and display receiver assembly connector.
|
|
*a
|
Front view of No. 2 antenna cord sub-assembly connector
(to Radio and Display Receiver assembly)
|
|
|
(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 or A-1a - Body ground
|
Always
|
10 kΩ or higher
|
4.
|
INSPECT ANTENNA CORD SUB-ASSEMBLY
|
(a) Disconnect the navigation antenna assembly connector.
|
|
*a
|
Front view of antenna cord sub-assembly connector
(to Navigation Antenna Assembly)
|
|
|
(b) Disconnect the radio and display receiver assembly connector.
|
|
*a
|
Front view of antenna cord sub-assembly connector
(to Radio and Display Receiver assembly)
|
|
|
(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 or A-1a - Body ground
|
Always
|
10 kΩ or higher
|
|