Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b2804 epb no activity detected

Subaru Legacy BN/BS (2015-2019) Service Manual / Eyesight (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc b2804 epb no activity detected

EPB control is abnormal.

NOTE:

Check the VDC. Basic Diagnostic Procedure > PROCEDURE

Dtc b2806 ecm abnormal

Detected when error occurs in the engine control module (ECM).NOTE:Perform check of the ECM. Basic Diagnostic Procedure > PROCEDURE Basic Diagnostic Procedure > PROCEDURE ...

Dtc b2803 epb operation prohibit

EPB operation is prohibited.In addition, in VDC brake maintenance mode VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) > MAINTENANCE MODE, even if any DTC is detected, the system malfunctio ...

Other materials:

Inspection
1. Remove the bulkhead harness connector from TCM. Transmission Control Module (TCM) > REMOVAL2. Set the ST between the TCM and bulkhead harness.ST 18460AA040CHECK BOARD3. Set the probe of oscilloscope to the check board connector.Terminals:No. 12 (+) — No. 26 (−)(A)+ probe(B)− pro ...