LS 460 AWD V8-4.6L (1UR-FSE) (2009)
Steering Angle Sensor: Testing and Inspection
Variable Gear Ratio Steering System
STEERING COLUMN: VARIABLE GEAR RATIO STEERING SYSTEM: CALIBRATION
CALIBRATION
NOTE:
Use this procedure to center the steering wheel if:
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The steering actuator (power steering gear assembly) has been replaced.
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The steering control ECU has been replaced.
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The steering column or steering intermediate shaft has been disconnected.
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The steering wheel is still off-center after completing the steering angle sensor initialization.
1. VGRS SYSTEM CALIBRATION PROCEDURE (USING SST CHECK WIRE)
1. FACE TIRES STRAIGHT AHEAD
NOTE:
Drive the vehicle to confirm that the steering wheel is centered.
NEXT -- Continue to next step.
2. CHECK DTC
(a) Check for DTCs See: Steering/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Variable Gear Ratio Steering
System.
Result:
B -- Go to step 4
A -- Continue to next step.
3. PERFORM ACTUATOR ANGLE INITIALIZATION
(a) Start the engine.
(b) Center the steering wheel.
SST: 09843-18040
(c) Complete the following steps within 1 minute.
(1) Using SST, connect terminals 12 (TS) and 4 (CG), and 13 (TC) and 4 (CG) of the DLC3.
(2) Disconnect SST from terminal 12 (TS) of the DLC3, and turn the steering wheel to the left 180° or more.
(3) Connect SST to terminal 12 (TS) of the DLC3.
(4) Disconnect SST from terminal 13 (TC) of the DLC3, and turn the steering wheel to the right 180° or more.
(5) Connect SST to terminal 13 (TC) of the DLC3.
HINT: When the master warning light comes on, DTC C1591/51 is memorized.
(d) Disconnect SST from the DLC3.
(e) Turn the engine switch off.
NEXT -- Continue to next step.
4. FACE TIRES STRAIGHT AHEAD
(a) Confirm that the steering wheel is centered when facing the tires straight ahead.
NOTE:
Drive the vehicle to confirm that the steering wheel is centered.
Result: