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Home >> Subaru >> 2015 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Security And Locks - Keyless Access (W/Push Button Start) (Diagnostics)) >> Inspection Mode >> Procedure >> Inspection Mode 1

Inspection Mode 1

WARNING: This page is about a different car, the 2015 Subaru Outback and 2015 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
DTC Item Note
U0073 Control Module Communication Bus Off -
U0100 Lost Communication With ECM/PCM "A" -
U0101 Lost Communication With TCM -
U0122 Lost Communication With Vehicle Dynamics Control Module -
U0140 Lost Communication With Body Control Module -
U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module -
U0401 Invalid Data Received From ECM/PCM "A" -
U0422 Invalid Data Received From Body Control Module -
B1571 Reference Code Incompatibility -
B1572 IMM Circuit Failure (Except Antenna Circuit) -
B1576 EGI Control Module EEPROM -
B1577 IMM Control Module EEPROM -
B2271 IGN Fuse Blown or IGN Circuit Abnormal -
B2274 ACC Monitor -
B2275 STSW Circuit Abnormal -
B2276 ACCR Signal Abnormal -
B2277 Submerging Circuit Abnormal -
B2285 Steering Lock Position Signal Abnormal -
B2286 Driving Possible Signal Abnormal -
B2781 Steering Lock ECU Open/Short -
B2782 Steering Lock Power Supply Circuit Abnormal (Smart ECU-Side Abnormal) -
B2785 LIN Communication Error -
B2786 No Response From Steering Lock ECU -
B2788 IGN1 Input Abnormal -
B2789 ID Code Box No Response -
B278D ID Code Box Recognition Judgment Abnormal -
B2793 Abnormal DCDC Power Supply -

Diagnostic procedure:

  1. Prepare for the inspection mode. <Ref. to PREPARATION FOR THE INSPECTION MODE , PROCEDURE, Inspection Mode.>
  2. Start the engine, and let it idle for 40 seconds or more.
  3. Read the DTC and check that the DTC is not displayed.
    NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis according to DTC.