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Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b2604 power seat memory eeprom

Subaru Legacy BN/BS (2015-2019) Service Manual / Power seat memory system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc b2604 power seat memory eeprom

DTC DETECTING CONDITION:

There is a difference between writing value and reading value of power seat control module EEPROM.

TROUBLE SYMPTOM:

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

STEPCHECKYESNO

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 B2604 displayed- (Current malfunction)

Replace the power seat control module. Power Seat System > REMOVAL

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.

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DTC DETECTING CONDITION:During the motor operation, voltage for power seat control module drops for a moment. (7.5 V or less)TROUBLE SYMPTOM:• Seat positions cannot be memorized.• Seat ope ...

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DTC DETECTING CONDITION:Detection of EPB abnormal signal continued for a certain period of time (2100 ms) or more.TROUBLE SYMPTOM:Seat operation is possible with manual operation, but not with memory ...

Other materials:

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DIAGNOSIS START CONDITION:• Battery voltage is 10 V or more.• The remote engine starter was not used to start the engine.DTC DETECTING CONDITION:• Defective body integrated unit (except for C0 and C5 models) or immobilizer CM (C0 and C5 models)• Failed to access ROM in the bo ...

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