Suspension - Active Height Control 'OFF' Lamp/DTC C1743
SUSPENSIONSU002-03
September 12, 2003
Title:
ACTIVE HEIGHT CONTROL RELAY
Models:
'02-'03 LX 470
Introduction
Some 2002 and 2003 model year LX 470 vehicles may exhibit a flashing AHC (Active Height Control) "OFF" light with DTC C1743 in AHC ECU memory. A change has been made to the Active Height Control Main Relay to improve relay performance.
Applicable Vehicles
^ 2002 - 2003 model year LX 470 vehicles produced BEFORE the Production Change Effective VIN shown below.
Production Change Information
Parts Information
Required SSTs
NOTE:
Additional Diagnostic Tester Kits, Program Cards or SSTs may be ordered by calling SPX/OTC at 1-800-933-8335.
Warranty Information
Applicable warranty *
This repair is covered under the Lexus Comprehensive Warranty. This warranty is in effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle's in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.
Repair Procedure
Refer to the Technical Information System (TIS) for Active Height Control Main Relay location and diagnostic procedures.
For Active Height Control Main Relay location:
Refer to 2002 or 2003 LX 470 Repair Manual: Diagnostics, Active Height Control Suspension & Adaptive Variable Suspension, Parts Location.
For Active Height Control Main Relay diagnostics:
Refer to 2002 or 2003 LX 470 Repair Manual: Diagnostics, Active Height Control Suspension & Adaptive Variable Suspension, C1743/43 AHC Main Relay.