SUSPENSION CONTROL: ACTIVE HEIGHT CONTROL SUSPENSION: DESCRIPTION (2008 LX570)

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Last Modified: 11-27-2007		1.6 C
Service Category: Suspension	Section: Suspension Control System
Model Year: 2008	Model: LX570	Doc ID: RM000001CTX006X
Title: SUSPENSION CONTROL: ACTIVE HEIGHT CONTROL SUSPENSION: DESCRIPTION (2008 LX570)

DTC

C1783

Speed Signal Communication Error

DESCRIPTION

The speed sensors monitor the speed of the wheels, and send appropriate speed signals to the suspension control ECU through the skid control ECU. If trouble occurs in either the front speed sensor or rear speed sensor, DTC (C1783) is output.

DTC Code	Detection Condition	Trouble Area
C1783	A speed sensor circuit malfunction for 1 second or more.	Vehicle stability control system Suspension control ECU

INSPECTION PROCEDURE

NOTICE:

Before performing troubleshooting, inspect the connectors of related circuits.

If the suspension control ECU or height control sensor is replaced, the vehicle height offset calibration must be performed .

PROCEDURE

1.	CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)

(a) Check if a speed sensor malfunction DTC is output under the vehicle stability control system .

Result

Result	Proceed to
DTC is not output	A
DTC is output	B

CLEAR DTC

(a) Clear the DTCs .

CHECK DTC

(a) Check for DTCs.

Result

Result	Proceed to
DTC C1783 is output	A
DTC C1783 is not output	B