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.
Reading and Clearing Diagnostic Trouble Codes
STEERING COLUMN: STEERING LOCK SYSTEM: DTC CHECK / CLEAR
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Access / Trouble Codes /
(e) Read the DTCs.
2. CLEAR DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Access / Trouble Codes /
(e) Erase the DTCs.
Symptom Related Diagnostic Procedures
STEERING COLUMN: STEERING LOCK SYSTEM: PROBLEM SYMPTOMS TABLE
PROBLEM SYMPTOMS TABLE
HINT: Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of
probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed.
Replace parts as necessary.
Steering lock system