| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001HD3S |
| Model Year Start: 2020 | Model: GR Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: B15C0,B15C1; GPS Antenna Connection Malfunction(short); 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022] | ||
|
DTC |
B15C0 |
GPS Antenna Connection Malfunction(short) |
|
DTC |
B15C1 |
GPS Antenna Connection Malfunction(break) |
DESCRIPTION
These DTCs are stored when a malfunction occurs in the navigation antenna assembly.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B15C0 |
GPS Antenna Connection Malfunction(short) |
GPS Antenna Connection Malfunction(short) |
|
|
B15C1 |
GPS Antenna Connection Malfunction(break) |
GPS Antenna Connection Malfunction(break) |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When replacing the navigation ECU, always replace it with a new one. If a navigation ECU which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The navigation ECU may not operate normally.
-
Check that the No. 2 antenna cord sub-assembly is properly installed and does not have any sharp bends, pinching or loose connections before performing following procedure.
Click here
![2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
(b) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble Codes
OK:
No DTCs are output.
| OK |
|
|
|
2. |
INSPECT NO. 2 ANTENNA CORD SUB-ASSEMBLY |
(a) Remove the No. 2 antenna cord sub-assembly.
for Hatchback: Click here
for Sedan: Click here
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG |
|
REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY for Hatchback: Click here
for Sedan: Click here
|
|
|
3. |
INSPECT NAVIGATION ANTENNA ASSEMBLY |
(a) Remove the navigation antenna assembly.
Click here
(b) Inspect the navigation antenna assembly.
Click here
| OK |
|
REPLACE NAVIGATION ECU
|
| NG |
|
REPLACE NAVIGATION ANTENNA ASSEMBLY
|
|
|