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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> External Pages >> Different car >> Section 678 (Security Control System (With Intelligent Key System)) >> System Description >> Intelligent Key System/Engine Start Function >> System Description >> Input/Output Signal Chart
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Input/Output Signal Chart

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
INTELLIGENT KEY UNIT INPUT/OUTPUT SIGNAL CHART

Switch/Input signal Input signal to Intelligent Key unit Intelligent Key unit function Actuator/Output signal
Key switch Mechanical key (insert/remove) Engine start function
  • KEY warning lamp/buzzer
  • Steering lock unit
  • Starter relay request (to IPDM E/R)
  • Inside key antenna (Instrument panel, center console, luggage areas)
  • Key interlock solenoid
Ignition knob switch Ignition knob (push/release)
Steering lock unit Steering lock (lock/unlock)
Inside key antenna (Front and rear center console, luggage areas) Intelligent Key (inside antenna detection area or not.)
IPDM E/R INPUT/OUTPUT SIGNAL CHART

Switch/Input signal Input signal to IPDM E/R IPDM E/R function Actuator/Output signal
Transmission range switch P, N range Engine start function
  • Starter relay
  • Starter motor
BCM INPUT/OUTPUT SIGNAL CHART

Switch/Input signal Input signal to BCM BCM function Actuator/Output signal
Key switch Brake (press/release) Engine start function
  • Inside key antenna (Instrument panel, center console, luggage areas)
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