DTC B1503: Meter Control Module Can Register Stuck

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.

DTC detecting condition:

Combination meter CAN controller malfunction

Trouble symptom:

Normal operation becomes impossible because the communication with other parts are not established.

CAUTION:

Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to COMBINATION METER (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION

CHECK DTC .
1. Turn the ignition switch to ON.
2. Read the DTC of [Combination Meter] using the Subaru Select Monitor. Ref. to COMBINATION METER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
Is DTC B1503 displayed? (Current code)

Yes : Replace the combination meter. (Defective hardware or software) Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER

No : Replace the combination meter. (Temporarily defective hardware or software) Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER