Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b2601 lin circuit low

Subaru Legacy BN/BS (2015-2019) Service Manual / Power seat memory system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc b2601 lin circuit low

DTC DETECTING CONDITION:

LIN communication circuit with the body integrated unit is shorted for a certain period of time (4000 ms) or more.

TROUBLE SYMPTOM:

Seat operation is possible with manual operation, but not with memory function.

Registration is possible with memory switch, but not with keyless access push button start system.

STEP	CHECK	YES	NO
1.CHECK DTC. 1) Turn the ignition switch to ON. 2) Read the DTC of the power seat control module using the Subaru Select Monitor. Read Diagnostic Trouble Code (DTC)	Is DTC B2601 displayed- (Current malfunction)	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2601 LIN CIRCUIT LOW	Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and perform the diagnosis again. NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
2.CHECK DTC. Read the DTC of body integrated unit using Subaru Select Monitor. Read Diagnostic Trouble Code (DTC)	Is DTC U0208 displayed- (Current malfunction)	Perform inspection according to DTC. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0208 LOST COMMUNICATION WITH SEAT MEMORY	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2601 LIN CIRCUIT LOW
3.CHECK BODY INTEGRATED UNIT. 1) Turn the ignition switch to OFF. 2) Replace with a power seat control module working properly. Power Seat System > REMOVAL 3) Turn the ignition switch to ON. 4) Read the DTC of the power seat control module using the Subaru Select Monitor. Read Diagnostic Trouble Code (DTC)	Is DTC B2601 displayed- (Current malfunction)	Replace the body integrated unit. Body Integrated Unit	There was an abnormality in power seat control module.

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DTC DETECTING CONDITION:Detection of 300 km/h or more continued for a certain period of time (2100 ms) or more.TROUBLE SYMPTOM:Seat operation is possible with manual operation, but not with memory fun ...

Freeze frame data display

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Read diagnostic trouble code (dtc) operation
1. On «Start» display, select «Diagnosis».2. On «Vehicle selection» display, input the target vehicle information and select «Confirmed».3. On «Main Menu» display, select «Each System».4. On «Select System» display, select «Keyless Access with Push Button Start» and then select «Ent ...