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Steering Lock (Diagnostics - Introduction): Other Lexus RX III

Steering Column 3 illustrations ~264 words

PRECAUTION

  1. NOTICE FOR INITIALIZATION: NOTE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Parking Assist Monitor System Refer to «INITIALIZATION»(ref-400649-S12881576452011051800000) Side Monitor System (w/ Parking Assist Monitor System) Back Door Closer System Power Back Door System
  2. PRECAUTIONS WHEN WORKING ON STEERING LOCK SYSTEM After replacing the steering lock ECU (steering lock actuator assembly), perform the key ID code registration. After replacing the steering lock ECU (steering lock actuator assembly), confirm the lock/unlock operation of the steering lock. OPERATION CONFIRMATION Steering Lock Condition Operation Condition Lock With the engine switch off, open and close any door. Unlock Turn the engine switch from off to on (IG) or on (ACC).
  1. NOTICE FOR INITIALIZATION: NOTE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Parking Assist Monitor System Refer to «INITIALIZATION»(ref-400649-S34584305262011051800000) Side Monitor System (w/ Parking Assist Monitor System) Back Door Closer System Power Back Door System
  2. PRECAUTIONS WHEN WORKING ON STEERING LOCK SYSTEM After replacing the steering lock ECU (steering lock actuator assembly), perform the key ID code registration. After replacing the steering lock ECU (steering lock actuator assembly), confirm the lock/unlock operation of the steering lock. OPERATION CONFIRMATION Steering Lock Condition Operation Condition Lock With the engine switch off, open and close any door. Unlock Turn the engine switch from off to on (IG) or on (ACC).

Scheme 81

Scheme 81: ILLUSTRATION

Scheme 82

Scheme 82: ILLUSTRATION

Scheme 83

Scheme 83: SYSTEM DIAGRAM
Transmitting ECU (transmitter)Receiving ECUSignalCommunication Method
Power management Control ECUSteering Lock ECU (Steering Lock Actuator Assembly)Power supply status (to steering lock motor)LIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly)Sleep available statusLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly) Power Management Control ECULock/Unlock sensor statusLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly)Steering lock statusLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly)Motor control statusLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly)Diagnostic response statusLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly)Lock/Unlock sensor malfunctionLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly)Power supply malfunction (to steering lock motor)LIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly)Motor driver malfunctionLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly) Power Management Control ECULock bar (stuck) statusLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly) Power Management Control ECUPush start statusLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly)Lock/Unlock relay drive statusLIN
Steering Lock ECU (Steering Lock Actuator Assembly)Certification ECU (Smart Key ECU Assembly) Power Management Control ECUEngine start control statusLIN

INPUT AND OUTPUT SIGNAL OF EACH ECU