Honda Civic manuals

Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc u0422 invalid data received from body control module

NOTE:

Refer to “LAN SYSTEM (DIAGNOSTICS)” for diagnostic procedure. Basic Diagnostic Procedure

1. OUTLINE OF DIAGNOSIS

Detect malfunction of CAN communication.

Judge as NG when data received from the body integrated unit is not normal.

2. EXECUTION CONDITION

Secondary Parameters

Execution condition

Turbine shaft speed

> 0 rpm

or

D range switch

ON

3. DIAGNOSTIC METHOD

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value

Malfunction Criteria

Threshold Value

CAN data from BIU

Freeze

Time Needed for Diagnosis: 2 seconds

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