Tech Tips
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
If the problem only occurs in certain locations or at certain times of day, check for wave interference.
If the optional components are installed, check for wave interference from the components.
| Symptom | Suspected Area | Link |
|---|---|---|
| Security indicator light does not blink | Proceed to "Security Indicator Light Does not Blink" | |
| Immobiliser system does not operate properly | Proceed to "Immobiliser System does not Operate Properly" | |
| Engine cannot be started*1 | Certification ECU (Smart key ECU assembly) | |
| ID code box (Immobiliser code ECU) | ||
| ECM | ||
| SFI system | ||
| Power source mode cannot be changed*1 | Engine switch | |
| Certification ECU (Smart key ECU assembly) | ||
| Steering lock lock/unlock not possible*2 | Steering lock ECU (Steering lock actuator or upr bracket assembly) |
*1: Refer to Problem Symptoms Table for Entry and Start System (for Start Function).
*2: Refer to Problem Symptoms Table for Steering Lock System.