Steering Lock System Function:
PROBLEM SYMPTOMS TABLE
| Symptom | Suspected Area | Information |
|---|---|---|
| Steering wheel cannot be unlocked (the engine cannot be started) | 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 Lck/Unlck Rec item in the DATA LIST of the certification ECU (smart key ECU assembly) displays YES within 10 seconds after starting the engine (If it displays NO, see "No steering unlock" command in this table) | DATA LIST/ACTIVE TEST | |
| Steering lock ECU power source circuit | POWER SOURCE CIRCUIT | |
| Check the input signal from the IGE terminal of the steering lock ECU | STEERING LOCK MOTOR DRIVE POWER CIRCUIT | |
| Replace the steering lock ECU. | REMOVAL | |
| Steering wheel cannot be unlocked (no steering unlock command) | 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 (immobilizer code ECU)) | - |
| 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 (immobilizer code ECU).) | - | |
| Replace the certification ECU (smart key ECU assembly) | REMOVAL | |
| Steering wheel cannot be locked. | Check for DTCs in the smart key system | DTC CHECK/CLEAR |
| Check for DTCs in the engine immobilizer system | DTC CHECK/CLEAR | |
| With the engine switch off and the shift in the P position, open and close the drivers door After that, check that the Lck/Unlck Rec item in the DATA LIST of the certification ECU (smart key ECU assembly) displays YES within 10 seconds (If it displays NO, see "No steering lock" command in this table ) | DATA LIST/ACTIVE TEST | |
| Steering lock ECU power source circuit | POWER SOURCE CIRCUIT | |
| Check the input signal from the IGE terminal of the steering lock ECU | STEERING LOCK MOTOR DRIVE POWER CIRCUIT | |
| Replace the steering lock ECU | REMOVAL | |
| Steering wheel cannot be locked (no steering lock command) | Courtesy light switch circuit | DOOR COURTESY SWITCH CIRCUIT |
| 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 (immobilizer code ECU)) | - | |
| 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 (immobilizer code ECU)) | - | |
| Replace the certification ECU (smart key ECU assembly). | REMOVAL |