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Last Modified: 11-27-2007 1.6 C
Service Category: Steering Section: Steering Column
Model Year: 2008 Model: LX570 Doc ID: RM000000YUA00KX
Title: VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: DESCRIPTION (2008 LX570)

DTC

C15B4/71

ECU Malfunction

DESCRIPTION

If the steering control ECU detects an internal malfunction, it will turn the master warning light on, store DTC C15B4/71, and stop VGRS operation.

DTC Code

DTC Detection Condition

Trouble Area

C15B4/71

The steering control ECU detects an internal malfunction.

Steering control ECU

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK MASTER WARNING LIGHT

(a) Check the conditions under which the master warning light comes on.

Result

Result

Proceed to

The engine stalled, battery voltage is too low, or the steering control ECU connector is disconnected.

A

Conditions other than above.

B
A

2.

CLEAR DTC

(a) Clear the DTCs VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

NEXT

3.

PERFORM VGRS SYSTEM CALIBRATION

(a) Perform VGRS system calibration VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: CALIBRATION (2008 LX570) .

NEXT

4.

CHECK DTC

(a) Check for DTCs VARIABLE GEAR RATIO STEERING: VARIABLE GEAR RATIO STEERING SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

Result

Result

Proceed to

DTC is not output

A

C15B4/71 is output

B
A