GQ43-21TRemote Tire Pressure Sensor

Re: Certification for TRW 42753-S3V-A0 Transmitter Model: 42753-S3V-A0 FCC ID: GQ43-21T IC: 1470A-2T USER'S MANUAL INFORMATION (PRELIMINARY) The User's Manual is in preparation. The following material will be contained in the manual: FCC ID: GQ43-21T IC: 1470A-2T This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. WARNING: Changes or modifications not expressively approved by the party responsible for compliance could void the user's authority to operate the equipment. The term “IC:” before the radio certification number only signifies that Industry Canada technical specifications were met.

August 14, 2003 TRW Automotive U.S. LLC d.b.a TRW Automotive Electronics 24175 Research Drive Farmington Hills, MI 48335 Tel: 248.478.7210 Fax: 248.478.7241 RE: Certification for TRW TPM ’04 Sensor Model #: 42753-S3V-A0 FCC ID: GQ43-21T Canada IC: 1470A-2T EXHIBIT_______ Confidential / Trade Secret Information Page ___ of ___ TRW BLOCK DIAGRAM Housing Valve - Rim Mount Pressure / Temperature Sensor / Control IC 125KHz Receiver 315MHz RF Transmitter Battery Figure 2. TPM Sensor Block Diagram

Re: Certification for TRW 42753-S3V-A0 Transmitter Model: 42753-S3V-A0 FCC ID: GQ43-21T IC: 1470A-2T POWER OF ATTORNEY A letter granting Valdis V. Liepa the Power of Attorney is on file and can be provided when so requested. Re: Certification for TRW 42753-S3V-A0 Transmitter Model: 42753-S3V-A0 FCC ID: GQ43-21T IC: 1470A-2T REQUEST FOR CONFIDENTIALITY Pursuant to 47 CRF 0.459, TRW requests that a part of the subject application be held confidential. This comprises Exhibits (5) Schematics (9) Internal Photos (potted device) (10) Parts List (Part of Exhibit only) TRW has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. If there are any questions regarding this request, please contact me at the above address or call 734-483-4211, fax 734-647-2106 or e-mail [email protected]. Sincerely, Valdis V. Liepa Research Scientist University of Michigan November 2, 2003 Re: Certification for TRW 42753-S3V-A0 Transmitter Model: 42753-S3V-A0 FCC ID: GQ43-21T IC: 1470A-2T STATEMENT OF MODIFICATIONS There were no modifications made to the DUT by this test laboratory. (Also see Section 3.1 of the attached Test Report). _____________________ Valdis V. Liepa Research Scientist Re: Certification for TRW 42753-S3V-A0 Transmitter Model: 42753-S3V-A0 FCC ID: GQ43-21T IC: 1470A-2T GENERAL PRODUCT INFORMATION The device, for which certification is pursued, has been designed by: TRW Inc. 24175 Research Drive, Farmington Hills, MI 48335 David Kapolka Tel: 248.478.7210 ext 4858 Fax: 248.478.7241 It will be manufactured by: TRW Automotive Electronics 2240 Cranbrook Drive Auburn, New York, 13021 Tel: 315.258.3300 Canadian Contact: TRW Canada Limited 16643 Highway 12 Midland, Ontario, Canada L4R4L5 Phone: 705.526.8791 ext 4103 Fax: 705.527.6232 Contact: Bob Millett

August 14, 2003 TRW Automotive U.S. LLC d.b.a TRW Automotive Electronics 24175 Research Drive Farmington Hills, MI 48335 Tel: 248.478.7210 Fax: 248.478.7241 RE: Certification for TRW TPM ’04 Sensor Model #: 42753-S3V-A0 FCC ID: GQ43-21T Canada IC: 1470A-2T EXHIBIT_______ Page ___ of ___ TRW FCC/IC IDENTIFIER AND MODEL NUMBER Please see Figure 1 for the FCC/IC identifier location and model number location. Figure 1. FCC/IC Identifier and Model Number The model number for the sensor is: 42753-S3V-A0 The FCC ID for the sensor is: GQ43-21T The Canada IC number for the sensor is: 1470A-2T

Use Modes Mode of Operation Explanation Frequency of Transmission Consumer Normal Transmitter in normal operation – wheel is rotating. 4 packets every minute Consumer Storage Transmitter enters mode when wheel is not rotating. Vehicle is stopped. No transmission. Consumer Alert Transmitter enters this mode when the temperature exceeds 110 deg. C or if a 20Kpa change in pressure is detected. 8 Packets every 4 seconds for 1 minute. Factory/Setup Normal Activated with 125 kHz signal 4 packets per initiation.

Appendix: DUT on OATS Appendix: Close-up on the DUT on OATS 9