2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

System Description: Inputs

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Power is supplied at all times

  • To BCM terminal 55
  • Through 50A fusible link (letter j, located in the fuse and fusible link box).
  • To BCM terminal 42
  • Through 15A fuse [No. 3, located in the fuse block (J/B)].

When the key switch is ON, power is supplied

  • To BCM terminal 37
  • Through key switch terminals 1 and 2
  • Through 15A fuse [No. 19, located in the fuse block (J/B)].

When the key switch is ACC or ON, power is supplied

  • To BCM terminal 11
  • Through 10A fuse [No. 4, located in the fuse block (J/B)].

When the key switch is ON or START, power is supplied

  • To BCM terminal 38
  • Through 10A fuse [No. 16, located in the fuse block (J/B)].

When the front door switch LH is ON (door is OPEN), ground is supplied

  • To BCM terminal 62
  • Through front door switch LH terminal 1
  • To front door switch LH case ground.

When the front door switch RH is ON (door is OPEN), ground is supplied

  • To BCM terminal 12
  • Through front door switch RH terminal 1
  • To front door switch RH case ground.

When the sliding door switch LH is ON (door is OPEN), ground is supplied

  • To BCM terminal 63
  • Through sliding door switch LH terminal 1
  • To sliding door switch LH case ground.

When the sliding door switch RH is ON (door is OPEN), ground is supplied

  • To BCM terminal 13
  • Through sliding door switch RH terminal 1
  • To sliding door switch RH case ground.

When the back door switch is ON (door is OPEN), ground is supplied

  • To BCM terminal 58
  • Through back door switch terminal 1 (without back door closure system) or,
  • Through back door latch terminal 7 (with back door closure system)
  • Through back door switch terminal 3 (without back door closure system),.
  • Through back door latch terminal 8 (with back door closure system),.
  • To body grounds D403 and D404.

Key fob signal is inputted to BCM from the remote keyless entry receiver.

The remote keyless entry system controls operation of the

  • Power door lock
  • Sliding door opener
  • Back door opener
  • Interior lamp and step lamps
  • Panic alarm
  • Hazard and horn reminder
  • Keyless power window down (open)
  • Auto door lock operation
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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