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Home >> Subaru >> 2021 >> Crosstrek Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Control System (2.5L) (Diagnostics) (4 Of 4)) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC U171F: Lost Lin Communication With Generator >> General Description >> Diagnostic Method

Diagnostic Method

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Judge as NG when the following conditions are established.

Judgment value 

JUDGMENT VALUE SPECIFICATIONS

Malfunction Criteria Threshold Value
Data received from control modules connected to LIN No change Or, Checksum error
Or,  
Internal malfunction flag of generator (communication failure warning) ON

Time needed for diagnosis:  2048 ms

Malfunction indicator light illumination:  Does not illuminate even when malfunction occurs. (Charge warning light illuminates)