LS 460 RWD V8-4.6L (1UR-FSE) (2010)
Lane Departure System: Initial Inspection and Diagnostic Overview
CRUISE CONTROL: LANE-KEEPING ASSIST SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING
HINT
*
Use these procedures to troubleshoot the lane-keeping assist system.
*
*: Use the Techstream.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
NEXT -- Continue to next step.
3. CHECK FOR DTC (ELECTRIC POWER CONTROL SYSTEM)*
(a) Using the Techstream, check if the electric power control system is functioning normally.
B -- Go to ELECTRIC POWER CONTROL SYSTEM See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions/Electric Power Control System
A -- Continue to next step.
4. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*
(a) Use the Techstream to check if the CAN Communication System is functioning normally.
B -- Go to CAN COMMUNICATION SYSTEM See: Powertrain Management/Computers and Control Systems/Information
Bus/Testing and Inspection/Initial Inspection and Diagnostic Overview/CAN Communication System/Diagnosis System
A -- Continue to next step.
5. CHECK FOR DTC*
(a) Check for DTCs See: Reading and Clearing Diagnostic Trouble Codes.
(b) Clear the DTCs See: Reading and Clearing Diagnostic Trouble Codes.
(c) Recheck for DTCs See: Reading and Clearing Diagnostic Trouble Codes.
B -- Go to step 8
A -- Continue to next step.