DTC B1732: Central Gateway Control Module Non-Volatile Memory
WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
Outline of diagnosis:
A data error was detected when reading was performed immediately after writing to non-volatile memory was completed.
Trouble symptom:
Newly occurred DTC cannot be stored.
NOTE:
If this DTC was detected, replace the central gateway control module. Ref. to BODY CONTROL/COMMUNICATION SYSTEM>CENTRAL GATEWAY CONTROL MODULE