LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2019 >> Forester Base >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control System (Diagnostics) >> Inspection Mode >> Procedure >> Inspection Mode 8
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Mode 8

DTC Items Note
U0101 LOST COMMUNICATION WITH TCM -
U0128 LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE -
U0164 LOST COMMUNICATION WITH HVAC CONTROL MODULE -
U0402 INVALID DATA RECEIVED FROM TCM -
U0417 INVALID DATA RECEIVED FROM PARK BRAKE CONTROL MODULE -
U0424 INVALID DATA RECEIVED FROM HVAC CONTROL MODULE -

Diagnostic procedure:

  1. Using the Subaru Select Monitor. perform the clear memory of [Body Control]. Ref. to COMMON(DIAG)>CLEAR MEMORY .
  2. Using the Subaru Select Monitor. read the DTC of [Body Control] to check that there is no DTC displayed. Ref. to BODY CONTROL (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. Confirm that [Customize] items of [Body Control] correspond to the vehicle. Ref. to BODY CONTROL (DIAGNOSTICS)>CUSTOMIZE .
  4. Turn the ignition switch OFF → ON, and wait for 10 seconds or more.
  5. Using the Subaru Select Monitor. read the DTC of [Body Control] to check that there is no DTC displayed. Ref. to BODY CONTROL (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.