DTC B1578 Meter Failure: DTC Detecting Condition
- Except Canada models
Reference code incompatibility between combination meter and body integrated unit or communication failure between body integrated unit and ECM
- Canada models
Reference code incompatibility between security control module and body integrated unit or communication failure between body integrated unit and ECM
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK DTC. Read the DTC of body integrated unit using Subaru Select Monitor. |
Is any of DTC B1401, B1405 and B1406 detected? | Go to step 2 . | Refer to DTC B1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT) . |
| 2 CHECK LAN COMMUNICATION SYSTEM. Inspect LAN communication system. Refer to BASIC DIAGNOSTIC PROCEDURE . |
Is DTC U1300, U1301, U1302, B1100 or B1101 of the body integrated unit displayed? | Perform the diagnosis according to the DTC. Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . | Go to step 3 . |
| 3 CHECK DTC. Perform inspection for the diagnosis trouble code detected in step 1. |
Is DTC B1401 detected? | Go to step 4 . | Perform the diagnosis for DTC B1405 or B1406. |
| 4 CHECK COMBINATION METER. Perform the registration of immobilizer. Refer to the "REGISTRATION MANUAL FOR IMMOBILIZER". |
Is the immobilizer registration achieved? | Go to step 5 . | Replace the combination meter and perform the registration of immobilizer again. |
| 5 CHECK ENGINE START. Start the engine. |
Does the engine start? | System is normal. | Replace the combination meter, perform the registration of immobilizer again and check that the engine starts normally. |
NOTE:
When the combination meter and body integrated unit are replaced at a time, the immobilizer can not be registered. In this case, it is necessary to rewrite the ID into the body integrated unit.