DTC B15AD: Navigation Processor Malfunction [06/2018 - 11/2022]: Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 Toyota GR Corolla, 2023 Toyota Corolla, 2022 Toyota Corolla, 2021 Toyota Corolla, and 2020 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC
- Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
- Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble Codes
OK
No DTCs are output.
Result
Proceed to OK NG
Result:
OK
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]
Result:
NG
REPLACE NAVIGATION ECU. Refer to REMOVAL [06/2018 - 03/2019] , or refer to REMOVAL [03/2019 - 11/2022]
- Clear the DTCs.