SU002-05
VEHICLE HEIGHT CONTROL SYSTEM: C1735 EXHAUST SOLENOID VALVE CIRCUIT
Models:
’03 – ’04 GX470
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 GX470 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 GX470 vehicles equipped with Height Control produced BEFORE the Production Change Effective VIN shown below.
Production Change Information
| MODEL | PRODUCTION CHANGE EFFECTIVE VIN |
|---|---|
| GX470 | JTJBT20X840057316 |
Parts Information
| PREVIOUS PART NUMBER | CURRENT PART NUMBER | PART NAME | QTY | |||||
|---|---|---|---|---|---|---|---|---|
| 48910-60020 | Same | Compressor Assembly, Height Control | 1 | |||||
Warranty Information
| OP CODE | DESCRIPTION | TIME | OFP | T1 | T2 |
|---|---|---|---|---|---|
| 857491 | R & R Height Control Compressor Assembly | 0.8 | 48910-60020 | 87 | 99 |
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.
- PREPS SURFACE: Pre-waxing glaze that prepares the surface for wax while offering deep reflections and high gloss.
- BEST CAR GLOSS: Conditioning oils add depth of color and maximum gloss prior to waxing, especially on dark colored cars
- REMOVE SWIRLS: Quickly and gently removes fine swirls and towel marks for mirror-like reflections
- SAFE FOR CLEAR COATS: Safe and on all glossy paints, including clear coats
- FLEXIBLE APPLICATION: Safe and effective by hand or dual action polisher like Meguiar's MT300 Dual Action Polisher
Last update on 2026-06-16 / Affiliate links / Images from Amazon Product Advertising API
- One 16 oz bottle of Nu Finish The Once A Year Car Polish
- Automotive polish that is made up of a series of zinc cross-linking polymer emulsions that help it last longer than any other polish on the market
- Nu Finish car polish can be applied anywhere, even in direct sunlight
- Also an ideal boat polish, motorcycle polish and chrome polish
- The only auto polish tough enough to be called "The Once A Year Car Polish”
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- ONE EASY STEP: Formula delivers maximum synthetic protection, durability, depth of color, and reflectivity in this easy one step
- EFFORTLESS APPLICATION: Thin Film technology provides for easy application and wipe off even in full sun, and will not stain non-painted trim pieces white
- LONG-LASTING PROTECTION: Advanced synthetic polymers crosslink to form a long-lasting protective barrier while amplifying reflection for incredible depth and mirror-like shine
- WATER ROLLS RIGHT OFF PAINT: Hydrophobic Polymer technology increases surface tension to protect paint
- SAFE AND FLEXIBLE: Safe and effective on all glossy paints and clear coats, and can be applied by hand or dual action variable speed polisher like Meguiar's MT300 Dual Action Polisher
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.


