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Home >> Toyota >> 2022 >> Corolla Cross L, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Engine Control System (M20A-FKS) - Diagnostic Codes (6 Of 6)) >> SFI SYSTEM (for K121) >> DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message [11/2023 - ] >> Confirmation Driving Pattern

Confirmation Driving Pattern

WARNING: This page is about a different car, the 2025 Toyota Corolla Cross and 2024 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch to ON.
  2. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  3. Turn the ignition switch off and wait for at least 30 seconds.
  4. Turn the ignition switch to ON.
  5. Wait 5 seconds or more.
  6. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
  7. Read the pending DTCs.

    HINT: 

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  8. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  9. Input the DTC: U1103-87.
  10. Check the DTC judgment result.

    HINT: 

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.