Smart Key System Function:
PROBLEM SYMPTOMS TABLE
| Symptom | Suspected Area | Information |
|---|---|---|
| Engine does not start. | Initialization | INITIALIZATION |
| Check for DTCs in the smart key system. | DTC CHECK/CLEAR | |
| Check for DTCs in the engine immobilizer system | DTC CHECK/CLEAR | |
| Check that the engine switch is turned on (IG). | - | |
| Check cranking operation. (If cranking operation is possible, see "Engine does not start due to the engine immobilizer" in this table.) | - | |
| Check Shift P Sig in the DATA LIST of the main body ECU and confirm that the shift signal is normal. | - | |
| Check whether the steering wheel is locked or unlocked. (If it is locked, see "Steering wheel cannot be unlocked" in the steering lock function table.) | - | |
| Steering lock ECU power source circuit | - | |
| Check the output from the SLP terminal of the steering lock ECU | UNLOCK POSITION SENSOR SIGNAL CIRCUIT | |
| Check the output signal from the ST SW of the certification ECU (smart key ECU assembly) (DTC B2275) | DTC B2275 STSW MONITOR MALFUNCTION | |
| Replace the main body ECU. | - | |
| Engine does not start due to the engine immobilizer. | Check that the L Code Chk item in the DATA LIST of the certification ECU (smart key ECU assembly) displays OK. (If it displays NG, replace the ID code box (immobiliser code ECU).) | - |
| Check that the Start Rqst item in the DATA LIST of the certification ECU (smart key ECU assembly) displays YES. (If it displays NO, replace the certification ECU (smart key ECU assembly).) | - | |
| Check that the S Code Chk item in the DATA LIST of the certification ECU (smart key ECU assembly) displays OK (If it displays NG, replace the ID code box (immobiliser code ECU)) | - | |
| Replace the ID Code Box (immobilizer code ECU). | REMOVAL |