Keyless Access System Symptom Troubleshooting Index (2020 2021 2022 2023 2024 2025)
NOTE: Before troubleshooting the keyless access system, make sure the fuses and relays associated with the system are OK.
| Symptom | Diagnostic procedure | Also check for |
|---|---|---|
| Cannot select ON mode with keyless access and with the keyless remote touching the engine start/stop switch | Symptom troubleshooting |
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| Cannot select ON mode with keyless access, but can select ON mode with the keyless remote touching the engine start/stop switch | Symptom troubleshooting |
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| Cannot select ON mode with the keyless remote touching the engine start/stop switch, but can select ON mode with keyless access | Check the keyless access/TPMS control unit |
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| The mode changes between ACCESSORY and ON, but it does not change to OFF (LOCK) |
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| The mode changes between ACCESSORY and ON, but it is difficult to change to OFF (LOCK) |
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*1: With electric steering lock
*2: Without electric steering lock
| Symptom | Diagnostic procedure | Also check for |
|---|---|---|
| Engine start/stop switch does not work | Check for DTCs. If any DTC is indicated, go to the DTC troubleshooting |
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| Engine does not crank (power supply is normal) |
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| The engine starts, but stalls immediately | Symptom troubleshooting |
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| Keyless access indicator does not go off or does not come on | Symptom troubleshooting |
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| Immobilizer indicator does not go off or does not come on | Symptom troubleshooting |
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| All the doors will not lock and unlock | Symptom troubleshooting |
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| The doors will not unlock or lock with the keyless remote, but will unlock or lock with the door outer handles | Symptom troubleshooting |
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*1: With electric steering lock
*2: Without electric steering lock
| Symptom | Diagnostic procedure | Also check for |
|---|---|---|
| The doors will not unlock or lock with the door outer handle touch sensor or lock switch, but will unlock or lock with the keyless remote | Symptom troubleshooting |
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| The key-in reminder does not sound | Symptom troubleshooting |
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| The key-in reminder sounds in vehicle OFF (LOCK) mode when door is open | Symptom troubleshooting |
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*1: With electric steering lock
*2: Without electric steering lock