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Inspection Mode 5

DTC Description & trouble part Note
B1A0C Front Relay Control Module CAN Register Stuck -
U0074 CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF -
U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE -
U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE -
U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE -
U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE -

Diagnostic procedure:

  1. Using the Subaru Select Monitor, perform the clear memory of [Front Relay Control Module]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
  2. Using the Subaru Select Monitor, read the DTC of [Front Relay Control Module] to check that there is no DTC displayed. Ref. to Front Relay Control Module (Diagnostics)>Diagnostic Trouble Code (DTC) .
    NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1).
  3. Turn the ignition switch OFF → ON, and wait for 10 seconds or more.
  4. Using the Subaru Select Monitor, read the DTC of [Front Relay Control Module] to check that there is no DTC displayed. Ref. to Front Relay Control Module (Diagnostics)>Diagnostic Trouble Code (DTC) .
    NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs.