Inspection Mode 8
WARNING: This page is about a different car, the 2021 Subaru Ascent. However, it is still accessible from the selected car via links, so may be relevant.
| DTC | Item | Note |
|---|---|---|
| U0101 | LOST COMMUNICATION WITH TCM | BIU detects DTC only when [MT/AT Setting] is [AT]. |
| U0128 | LOST COMMUNICATION WITH PARK BRAKE CONTROL MODULE | BIU detects DTC only when [EPB setting] is [Support]. |
| U0164 | LOST COMMUNICATION WITH HVAC CONTROL MODULE | BIU detects DTC only when [Auto A/C Setting] is [Support]. |
| U0169 | LOST COMMUNICATION WITH SUNROOF CONTROL MODULE | BIU detects DTC only when [Sunroof setting] is [Support]. |
| U0208 | LOST COMMUNICATION WITH "SEAT CONTROL MODULE A" | BIU detects DTC only when [Seat Memory Setting] is [Support]. |
| U0222 | LOST COMMUNICATION WITH DRIVER'S DOOR POWER WINDOW | BIU detects DTC only when [P/W ECU Setting] is [Driver Seat], [Driver/Passenger Seat] or [Four Seat]. |
| U0223 | LOST COMMUNICATION WITH PASSENGER'S DOOR POWER WINDOW | BIU detects DTC only when [P/W ECU Setting] is [Driver/Passenger Seat] or [Four Seat]. |
| U0224 | LOST COMMUNICATION WITH RR DOOR POWER WINDOW | BIU detects DTC only when [P/W ECU Setting] is [Four Seat]. |
| U0225 | LOST COMMUNICATION WITH RL DOOR POWER WINDOW | BIU detects DTC only when [P/W ECU Setting] is [Four Seat]. |
| U0230 | LOST COMMUNICATION WITH REAR GATE MODULE | BIU detects DTC only when [Power rear gate setting] is [Support]. |
| U0231 | LOST COMMUNICATION WITH RAIN SENSING MODULE | BIU detects DTC only when [Rain drop Detection Sensor Setting] is [Support]. |
| U0402 | INVALID DATA RECEIVED FROM TCM | BIU detects DTC only when [MT/AT Setting] is [AT]. |
| U0417 | INVALID DATA RECEIVED FROM PARK BRAKE CONTROL MODULE | BIU detects DTC only when [EPB setting] is [Support]. |
| U0424 | INVALID DATA RECEIVED FROM HVAC CONTROL MODULE | BIU detects DTC only when [Auto A/C Setting] is [Support]. |
| U1235 | LOST COMMUNICATION WITH EyeSight | BIU detects DTC only when [High Beam Assist Function Setting (mirror/EyeSight)] is [EyeSight HBA]. |
| U1433 | INVALID DATA RECEIVED FROM EyeSight | BIU detects DTC only when [High Beam Assist Function Setting (mirror/EyeSight)] is [EyeSight HBA]. |
| U1673 | LIN COMMUNICATION BUS ERROR BODY CONTROL MODULE | BIU detects DTC only when any of the following customize settings is established:
|
| U1674 | LIN COMMUNICATION BUS 2 ERROR BODY CONTROL MODULE | BIU detects DTC only when [P/W ECU Setting] is [Driver Seat], [Driver/Passenger Seat] or [Four Seat]. |
| U1769 | LOST COMMUNICATION WITH SUNSHADE CONTROL MODULE | BIU detects DTC only when [Sunshade ECU Setting] is [Exist]. |
| U1822 | LOST COMMUNICATION WITH MASTER MAIN SWITCH | BIU detects DTC only when [P/W ECU Setting] is [Driver Seat], [Driver/Passenger Seat] or [Four Seat]. |
Diagnostic procedure:
- Using the Subaru Select Monitor, perform the clear memory of [Body Control]. Ref. to COMMON (diag)>CLEAR MEMORY .
- 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) .
- Confirm that [Customize] items of [Body Control] correspond to the vehicle. Ref. to BODY CONTROL (DIAGNOSTICS)>CUSTOMIZE .
- Turn the ignition switch OFF → ON, and wait for 10 seconds or more.
- 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. Ref. to BODY CONTROL (DIAGNOSTICS)>Diagnostic Trouble Code (DTC)>LIST .