Check For Intermittent Problems [11/2022 - ]
WARNING: This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, and 2023 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Operation history is stored in the RAM or EEPROM of the certification ECU (smart key ECU assembly). As the cause of a malfunction stored in the RAM will be cleared when the cable is disconnected from the negative (-) auxiliary battery terminal, do not disconnect the cable from the negative (-) auxiliary battery terminal before checking and recording are complete.
- If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read and saved, the operation history information could be lost.
- The operation history function uses the current system time of the GTS and the time counter inside the controlling ECU to calculate the time shown in the operation history. For this reason, before reading the operation history, first make sure that the GTS system clock is accurately set to the current time.
- VEHICLE CONTROL HISTORY (ROB)
HINT:
The certification ECU (smart key ECU assembly) stores the vehicle control history (RoB) of the smart key system and it can be read using the GTS.
- Read the Vehicle Control History (RoB) according to the display on the GTS.
Body Electrical > Smart Key > Utility
Tester Display Vehicle Control History (RoB) Code Item List Item Description Note X0A10 Auto Entry Mode Switch History The certification ECU mode changed when the GTS was connected. - X0A11 Customize (Auto Entry Cancel) The smart functionality was canceled via customization. - X0A12 Engine Start (Inactive) Hybrid control system could not be started because steering lock status was unlock not confirmed. - X0A13 Engine Start Hybrid control system could not be started because immobiliser was set. - X0A14 Radio Wave Interference (RF Reception Not Available) An attempt was made to start the hybrid control system without a key. - X0A15 Engine Start Inactive (Steering Lock System) Hybrid control system could not be started because steering lock lever was engaged. - X0A18 Auto Entry Wireless Operation History (Lock/Unlock) Lock/unlock was performed by wireless operation. - X0A19 Auto Entry Wireless Operation History (Open/Close) Power slide door/back door was opened/closed by wireless operation. - X0A1A Warning Operation History Warning operation was performed by a function of the certification ECU. - X0A1B Registration Function (Reason for Non-operation) The reason that key registration failed. - X0A1C Radio Wave Interference (RF Signal Received) Smart system did not operate due to effects of radio frequency interference. - X0A1D Auto Entry Lock (Inactive) The reason that entry lock did not operate. - X0A1E Auto Entry Unlock (Inactive) The reason that operations other than entry lock operation did not operate correctly. - HINT:
Some items may not be displayed depending on the specifications of the vehicle.
- Read the Vehicle Control History (RoB) according to the display on the GTS.
Body Electrical > Power Source Control > Utility
Tester Display Vehicle Control History (RoB) Code Item List Item Description Note X0A00 Cause Details of Engine Start / READY ON Failure The reason that hybrid control system did not start or system did not enter READY ON. - X0A01 Cause Details of Engine Stop / READY OFF in IG ON The reason that hybrid control system stalled or hybrid control system stopped. - X0A02 Cause Details of Leave ACC ON / IG ON The reason that vehicle power source turned off automatically. - HINT:
Some items may not be displayed depending on the specifications of the vehicle.
- Read the Vehicle Control History (RoB) according to the display on the GTS.
- SYMPTOM SIMULATION