SU002-03
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
| MODEL | PRODUCTION CHANGE EFFECTIVE VIN |
|---|---|
| LX 470 | JTJHT00W*33531873 |
Parts Information
| PREVIOUS PART NUMBER | CURRENT PART NUMBER | PART NAME | QTY | |
|---|---|---|---|---|
| 90987-02004 | 89278-60010 | Relay, Height Control | 1 | |
Required SSTs
| SPECIAL SERVICE TOOLS (SSTs) | PART NUMBER | QUANTITY |
|---|---|---|
| Lexus Diagnostic Tester Kit* | 01001270 | 1 |
| 12 Megabyte Diagnostic Tester Program Card with version 10.0a Software (or later)* | 01002593-005 | 1 |
*Essential SSTs.
| NOTE:
Additional Diagnostic Tester Kits, Program Cards or SSTs may be ordered by calling SPX/OTC at 1-800-933-8335. |
Warranty Information
| OP CODE | DESCRIPTION | TIME | OFP | T1 | T2 |
|---|---|---|---|---|---|
| SU3003 | Relay, Height Control | 0.2 | 90987–02004 | 95 | 54 |
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.
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