Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b2790 id code box circuit

Subaru Legacy BN/BS (2015-2019) Service Manual / Keyless access with push button start system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc b2790 id code box circuit

DTC DETECTING CONDITION:

An error has occurred inside the ID code box.

TROUBLE SYMPTOM:

Engine will not start.

CAUTION:

For replacement procedure of ID code box, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

STEP	CHECK	YES	NO
1.CHECK DTC. 1) Turn the ignition switch to OFF. 2) Using the Subaru Select Monitor, clear the memory of «keyless access with push button start». Clear Memory Mode 3) Turn the ignition switch to OFF > ON. 4) Register the ID code box. Refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume. 5) Read DTC using the Subaru Select Monitor. Read Diagnostic Trouble Code (DTC)	Is DTC B2790 displayed-	Replace the ID code box. ID Code Box	ID code box registration was not performed properly.

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Other materials:

Operation
1. REGISTRATION (COMM CHECK)CAUTION:Because it will go back to Factory mode when the signal is weak, that you do not press the i button more than 2 seconds during a communication check. If it had returned to Factory mode, carrying out the CommCheck again. Each mode state can be confirmed in the &ldq ...