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Steering Lock Function

PROBLEM SYMPTOMS TABLE - STEERING LOCK FUNCTION

Symptoms Suspected Area
Steering wheel cannot be unlocked (the engine cannot be started).
  1. Check for DTCs in the push button start.
  2. Check for DTCs in the smart key system.
  3. Check that the "LCK/UNLCK REC" item in the DATA LIST of the certification ECU displays YES within 10 seconds after starting the engine. (If it displays NO, see "No steering unlock command" in this table.)
  4. Check the output from the IGE terminal of the steering lock ECU.
  5. Steering lock ECU power source circuit
  6. Replace the steering lock ECU.
Steering wheel cannot be unlocked (no steering unlock command).
  1. Check that the "S CODE MACH" item in the DATA LIST of the certification ECU displays OK. (If it displays NG, replace the certification ECU or ID code box.)
  2. Check that the "L CODE MACH" item in the DATA LIST of the certification ECU displays OK. (If it displays NG, replace the steering lock ECU or ID code box.)
  3. Replace the certification ECU.
Steering wheel cannot be locked.
  1. Check for DTCs in the push button start.
  2. Check for DTCs in the smart key system.
  3. With the engine switch OFF and the shift in the P position, open and close the driver's door. After that, check that the "LCK/UNLCK REC" item in the DATA LIST of the certification ECU displays YES within 10 seconds. (If it displays NO, see "No steering lock command" in this table.)
  4. Check the output from the IGE terminal of the steering lock ECU.
  5. Steering lock ECU power source circuit
  6. Replace the steering lock ECU.
Steering wheel cannot be locked (no steering lock command).
  1. Courtesy light switch circuit
  2. Check that the "S CODE MACH" item in the DATA LIST of the certification ECU displays OK. (If it displays NG, replace the certification ECU or ID code box.)
  3. Check that the "L CODE MACH" item in the DATA LIST of the certification ECU displays OK. (If it displays NG, replace the steering lock ECU or ID code box.)
  4. Replace the certification ECU.
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