LS 460 AWD V8-4.6L (1UR-FSE) (2009)
the steering lock ECU.
The steering lock ECU records DTCs when the ECU detects a malfunction in itself or in its circuits.
(b) The diagnosis information of the steering lock ECU is transmitted to the Techstream via the certification ECU as the steering lock ECU is not
connected to the CAN communication system.
(c) The steering lock ECU does not store DTCs regarding past problems.
HINT: When the engine switch is off, the main body ECU to which the Techstream is to be connected may be malfunctioning or in sleep
mode.
Communication with the Techstream is impossible if the main body ECU is not working.
(d) As the steering lock ECU's memory data will be deleted, do not remove the fuses or disconnect the battery terminals until the DTCs are
checked and noted.
(e) Malfunctions related to systems other than the steering lock ECU's system may cause DTCs to be output. Note any DTCs related to other
systems.