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

Subaru Legacy BN/BS (2015-2019) Service Manual / Continuously variable transmission (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / 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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Other materials:

Removal
1. SEDAN MODEL1. Disconnect the ground terminal from battery sensor. NOTE2. Remove the trim panel - trunk lid. Trunk Room Trim > REMOVAL3. Remove the bulb socket and back-up light bulb.CAUTION:Use a dry clean cloth so that no grease or water adheres to the glass portion of the bulb.2. OUTBACK MODE ...