Technical Service Information Bulletin - Technical Service Information Bulletin A\/C BLOWER MOTOR MALFUNCTION Models 97 ES 300 Introduction A Malfunction

Technical Service Information Bulletin - Technical Service...

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Lexus Supports ASE Certification Page 1 of 2 Title: A/C BLOWER MOTOR MALFUNCTION Models: ’97 ES 300 Technical Service Information Bulletin July 17, 1998 AC002–98 A Malfunction of the A/C blower motor may be caused by water intrusion into the blower unit due to a poor seal between the windshield and the cowl top ventilation louver. EPT Sealer Cowl Top Ventilator Louver Water Entry & Flow Depicted by Arrow Windshield Glass A–A’ Cross Section A A’ To prevent this, the amount of caulking sponge sealant (EPT Sealer) applied behind the cowl top ventilation louver has been increased. In addition, the shape of the louver has been changed as shown in the illustrations below. EPT Sealer 7 mm Old Style A– A’ Cross Section New Style A– A’ Cross Section Deeper Louver 10 mm Louver Depth S 1997 model year ES 300s produced before JT8BF22G*W0096000 at Tsutsumi plant or before JT8BF22G*W5022600 at Kyushu plant. OLD PART NUMBER NEW PART NUMBER PART NAME 55781–33140 Same Lower Cowl Top Ventilator, RH 55782–33140 Same Lower Cowl Top Ventilator, LH HEATING & AIR CONDITIONING Introduction Affected Vehicles Parts Information
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A/C BLOWER MOTOR MALFUNCTION – AC002–98 July 17, 1998 Page 2 of 2 OP CODE DESCRIPTION TIME OPN T1 T2 EL8001 R&R Blower Motor 0.6 87103–44020 66 83 Applicable Warranty*: This repair is covered under the Lexus Basic 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 complaint. If evidence of water intrusion into the blower motor housing is found such as rusting of the Blower Motor, perform the following operations: 1. Replace the Blower Motor (Refer to the Repair Manual for procedure). 2. Remove wiper arms and the hood to cowl top seal. 3. Replace the cowl top ventilator louver with new part. 4. Reinstall components in reverse order. Warranty Information Repair Procedure
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Lexus Supports ASE Certification Page 1 of 12 Title: SENSOR INSPECTION FOR AIR CONDITIONING SYSTEM Models: ’90 – Current All Models Technical Service Information Bulletin December 16, 2004 AC005-04 This service bulletin contains inspection procedures to more precisely confirm proper operation of the following temperature sensors of the air conditioning system. Follow the procedures in this service bulletin when inspecting these sensors. These contents will be reflected in future repair manuals. S Room Temperature Sensor S Ambient Temperature Sensor S Air Duct Sensor S Evaporator Temperature Sensor S Solar Sensor S Room Humidity Sensor S All 1990 – Current model year Lexus vehicles. OP CODE DESCRIPTION TIME OFP T1 T2 N/A Not Applicable to Warranty HEATING & AIR CONDITIONING Introduction Applicable Vehicles Warranty Information
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SENSOR INSPECTION FOR AIR CONDITIONING SYSTEM – AC005-04 December 16, 2004 Page 2 of 12 1. Inspect Room Temperature Sensor.
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