| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM100000001H8D0 |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): CHECK FOR INTERMITTENT PROBLEMS; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] | ||
CHECK FOR INTERMITTENT PROBLEMS
NOTICE:
- 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 Techstream 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 Techstream system clock is accurately set to the current time.
OPERATION HISTORY
HINT:
The certification ECU (smart key ECU assembly) stores the operation history of the smart key system and it can be read using the Techstream.
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Utility / Operation History / (desired item).
Body Electrical > Smart Key > Utility
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Tester Display |
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Operation History |
(e) According to the display on the Techstream, read and save the operation history.
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Operation History List |
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Auto Entry Mode Switch History |
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Auto Entry Wireless Operation History |
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Auto Entry Warning Operation History |
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Engine Start |
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System Start Operation |
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Auto Entry Cancel (Customize) |
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Door Unlock Mode Switch (Customize) |
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Radio wave interference |
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Engine Start (inactive) |
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System Start Operation (inactive) |
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Remote Engine Starter (inactive) |
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Auto Entry Unlock (inactive) |
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Certification ECU operation log of ID code registration |
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Auto Entry Lock (inactive) |
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Engine Start Inactive (Brake/Clutch System) |
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Engine Start Inactive (Radio Wave Interference) |
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Engine Start Inactive (Steering Lock System) |
HINT:
Some items may not be displayed depending on the specifications of the vehicle.
SYMPTOM SIMULATION
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![2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
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