Suspension - MIL ON or Flashing/DTC P1735 Set
SUSPENSIONSU002-05
REVISED
Title:
VEHICLE HEIGHT CONTROL SYSTEM:
C1735 EXHAUST SOLENOID
VALVE CIRCUIT
Models:
'03 - '04 GX 470
July 11, 2005
TSB REVISION NOTICE:
^ August 8, 2005: The TSIB title has been updated.
Previous versions of this TSIB should be discarded.
Introduction
Some 2003 - 2004 model year GX 470 vehicles with Height Control may experience a M.I.L. "ON" or M.I.L. light flashing with DTC C1735 stored in memory. This condition is due to moisture intrusion into the Height Control Exhaust Solenoid Valve. A new design exhaust solenoid valve has been introduced to improve this condition.
Applicable Vehicles
^ 2003 - 2004 model year GX 470 vehicles equipped with Height Control produced BEFORE the Production Change Effective VIN shown below.
Production Change Information
Parts Information
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.
Required SSTs
Parts Identification
Countermeasure service parts are identified by the 4-digit date code printed on the bottom of the compressor assembly mounting bracket. Date code is 4G01 or later.
Repair Procedure
1. Confirm that DTC C1735 is stored in the Suspension Control ECU.
2. Remove and replace the compressor assembly. Refer to the Technical Information System (TIS), 2003 - 2004 model year GX 470 Repair Manual: Suspension Control System: Height Control Compressor Assembly: Replacement.
3. Clear codes and verify that the Height Control System is operational.