KOBHT05TPMTire Pressure Monitor System

Re: Certification for Lear Transmitter Model: 52933-3L000 FCC ID: KOBHT05TPM IC: 3521A-HT05TPM USER'S MANUAL INFORMATION (PRELIMINARY) The User's Manual is in preparation. The following material will be contained in the manual: FCC ID: KOBHT05TPM IC: 3521A-HT05TPM 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.

Re: Certification for Lear Transmitter Model: 52933-3L000 FCC ID: KOBHT05TPM IC: 3521A-HT05TPM 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 Lear Transmitter Model: 52933-3L000 FCC ID: KOBHT05TPM IC: 3521A-HT05TPM REQUEST FOR CONFIDENTIALITY Pursuant to 47 CRF 0.459, Lear requests that a part of the subject application be held confidential. This comprises Exhibits (5) Schematics (9) Interal Photos (DUT is Potted) (10) Parts List (Part of Exhibit only) Lear 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 February 2, 2005 Re: Certification for Lear Transmitter Model: 52933-3L000 FCC ID: KOBHT05TPM IC: 3521A-HT05TPM 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 Lear Transmitter Model: 52933-3L000 FCC ID: KOBHT05TPM IC: 3521A-HT05TPM GENERAL PRODUCT INFORMATION The device, for which certification is pursued, has been designed by: Lear Corporation 5200 Auto Club Drive Dearborn, MI 48126 Tom Tang Tel: (313) 593 - 9934 Fax: (313) 240 - 3062 It will be manufactured by: Lear Corporation 2200 Linden Ave Zanesville, OH 43701 Tom Tang Tel: (313) 593 - 9934 Fax: (313) 240 - 3062 Canadian Contact: Hyundai Auto Canada 75 Frontenac Drive Markham, Ontario Canada L3R 6H2 Tel: (905) 948-6707

5200 Auto Club Dr. Dearborn, Michigan 48126 (313) 593-9000 Re: Certification for Lear Corporation TPM Wheel Electronic FCC ID: KOBHT05ATPM / KOBHT05TPM IC: 3521A-HT05ATPM / 3521A-HT05TPM Block Circuit Diagram TPMS Functions The TPM Wheel Electronic (WE) transmits the pressure, temperature, and battery status to a receiver fixed inside the passenger compartment. The WE consist of a combination pressure/temperature/acceleration sensor, microprocessor, and LF receiver. The 315MHz RF is generated by a PLL (Phase-Lock Loop) IC stabilized by a reference crystal this is radiated through a combination PCB trace and rigid wire antenna. The WE can also be forced to transmit by an LF (Low Frequency) interface at 125kHz. Pressure/Temperature/ Acceleration Sensor, Microprocessor, LF Receiver LF Interface PLL RF 315MHz Transmitter Stabilizing Crystal RF Antenna 3V Battery XTAL 13.125MHz

5200 Auto Club Dr. Dearborn, Michigan 48126 (313) 593-9000 Re: Certification for Lear Corporation TPM Wheel Electronic FCC ID: KOBHT05TPM IC: 3521A-HT05TPM MODES OF OPERATION – LOW-LINE Mode Description Storage No RF Transmission – for shipping purposes Stationary 3 words per event, normal operation Rotating 3 words per event, normal operation Fast Transmission 1 word per event for 32 events, warning for rapid change in pressure

February 2, 2005 American Telecommunications Certification Body, Inc. 6731 Whittier Avenue Suite C110 McLean, VA 22101 RE: Certification Application FCC ID: KOBHT05TPM & KOBHT05ATPM IC: 3521A-HT05TPM & 3521A-HT05ATPM Please find enclosed application materials for certification of Lear 52933-3L000 / 52933- 1G000 Transmitters. Both devices are identical with only software and transmission pattern differences. Two different FCC and IC numbers are being requested, but only one test report is necessary. Separate submittals have been uploaded for each FCC/IC number. Note: 1) portions of this submittal are filed Confidential 2) a list of the modifications made is provided in Attestations. If there are any questions regarding the application or testing performed, 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

February 2, 2005 Federal Communications Commission Equipment Approval Services P.O. Box 358315 Pittsburgh, PA 15251-5315 Re: Certification for Lear Transmitter Model: 52933-3L000 FCC ID: KOBHT05TPM IC: 3521A-HT05TPM Please find enclosed application materials for certification of Lear 52933-3L000 Transmitter. We tested it and found it to comply with FCC Part 15. If there are any questions regarding the application or testing performed, 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 February 2, 2005 Certification and Engineering Bureau Industry Canada 3701 Carling Avenue, Bldg. 94 Ottawa, Ontario K2H 8S2 Re: Certification for Lear Transmitter Model: 52933-3L000 FCC ID: KOBHT05TPM IC: 3521A-HT05TPM Please find enclosed application materials for certification of Lear 52933-3L000 Transmitter. We tested the device and found it to comply with RSS-210. The product is identified by: IC: 3521A-HT05TPM If there are any questions, suggestions, etc., regarding the application or testing performed, please contact me at the above address or call 734-483-4211, fax 734-647- 2106; e-mail: [email protected]. Sincerely, Valdis V. Liepa Research Scientist

5200 Auto Club Dr. Dearborn, Michigan 48126-9982 (313) 593-9000 Re: Certification for Lear Corporation TPM Wheel Electronic FCC ID: KOBHT05ATPM, KOBHT05TPM IC: 3521A-HT05ATPM , 3521A-HT05TPM FCC and IC ID LABEL and STATEMENT The internal PCB is the same between these two versions with different software between versions. The label(s) below will be laser etched on the outside and on the back of the plastic case of the transmitter. The following statement will be printed in the User’s Instruction Manual This device complies with Part 15 of the FCC Rules and with RSS-210 of the 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. The letter’s “IC” have no other meaning or purpose than to identify the Industry Canada certification number/registration number. WARNING: Changes or modifications not expressively approved by the party responsible for compliance could void the user’s authority to operate the equipment. 5200 Auto Club Dr. Dearborn, Michigan 48126-9982 (313) 593-9000 Re: Certification for Lear Corporation TPM Wheel Electronic FCC ID: KOBHT05ATPM / KOBHT05ATPM IC: 3521A-HT05ATPM / 3521A-HT05ATPM Device Labeling High-Line: FCC ID: KOBHT05ATPM IC: 3521A-HT05ATPM (Drawing not complete Low-Line shown as reference)

5200 Auto Club Dr. Dearborn, Michigan 48126 (313) 593-9000 Re: Certification for Lear Corporation TPM Wheel Electronic FCC ID: KOBHT05TPM IC: 3521A-HT05TPM DESCRIPTION OF OPERATION GENERAL DESCRIPTION OF LOW-LINE SENSOR The product for which certification is pursued will be manufactured for Hyundai / Kia Motor Company by Lear Corporation for automotive applications. The module is intended to report Tire information like pressure and temperature, along with battery information to a central receiving module. This device is called a wheel electronic (WE). There are two versions of the WE; high-line and low-line. The high-line transmits four words per transmission event while the vehicle is moving. There are not transmissions while the vehicle is stationary. The other version, low-line, will transmit three words per transmission event – where a transmission event is typically each 180 seconds. Each word is 10.1ms nominally. There is 100ms up to 275ms of “space” between words. The transmitter section of the design is identical between the two different versions. The 315 MHz transmitter works in conjunction with a receiver that is mounted in the vehicle’s passenger compartment. The transmitter is a 3-volt, single cell battery operated module which is fixed to a special valve stem and is mounted to the rim inside each tire. The WE transmits tire environmental information, such as pressure, temperature, and acceleration to the receiver. Differences between these versions are as follows: different software controlling the period of transmission, the Hyundai / Kia / Lear part number laser etched on the housing. The PCB, microprocessor and RF circuitry on all versions are identical. The WE transmitter contains one 3 volt battery and a printed circuit board assembly. The one piece exterior housing is a molded plastic with an air valve attached, however flexible, with the Hyundai / Kia / Lear #, FCC ID #, and IC # laser etched into the plastic. The PCB is inserted to the housing and is potted to keep all foreign materials out. TECHNICAL DESCRIPTION The microprocessor makes interval measurements of pressure, temperature, and acceleration (high- line only). The data is then transmitted by RF to the receiver at certain intervals. The code is carried by a 315 MHz carrier with FSK modulation and radiated by an on board antenna. The data code is conditional diphase modulation format to express bits “0” and “1”. The clock out from the RF PLL (Phase Lock Loop) is used to stabilize the data. The antenna is a PCB loop trace and a rigid wire combination. The 315 MHz transmit frequency is generated by a PLL, stabilized by a crystal. Frequency tolerance is better than 315 MHz, +/- 65 kHz. The WE is capable of forced communication through a 125 kHz interface.

The University of Michigan Radiation Laboratory 3228 EECS Building Ann Arbor, MI 48109-2122 Tel: (734) 764-0500 Measured Radio Frequency Emissions From Lear Corporation Transmitter Model(s): Low Line 52933-3L000 High Line 52933-1G000 Report No. 415031-236 February 2, 2005 Copyright © 2005 For: Lear Corporation 5200 Auto Club Dr. Dearborn, MI 48126-9982 Contact: Tom Tang Tel: (313) 593 - 9934 Fax: (313) 240 - 3062 PO: Verbal Tests supervised by: Measurements made by: Report approved by: _____________________ Valdis V. Liepa Valdis V. Liepa Ted Huff Research Scientist Summary Tests for compliance with FCC Regulations Part 15, Subpart C, and Industry Canada RSS-210, were performed on Lear Corporation models 52933-1G000 and 52933-3L000. This device is subject to the Rules and Regulations as a Transmitter. In testing completed on January 18, 2005, the device tested in the worst case met the allowed FCC specifications for radiated emissions by 4.4 dB (see p. 6). Besides harmonics, there were no other significant spurious emissions found; emissions from digital circuitry are exempt as this is a vehicular device. The conducted emission tests do not apply, since the device is powered from a 12 VDC battery. 2 1. Introduction Lear Corporation models 52933-1G000 and 52933-3L000 were tested for compliance with FCC Regulations, Part 15, adopted under Docket 87-389, April 18, 1989, and with Industry Canada RSS-210, Issue 5, November, 2001. The tests were performed at the University of Michigan Radiation Laboratory Willow Run Test Range following the procedures described in ANSI C63.4-1992 "Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz". The Site description and attenuation characteristics of the Open Site facility are on file with FCC Laboratory, Columbia, Maryland (FCC Reg. No: 91050) and with Industry Canada, Ottawa, ON (File Ref. No: IC 2057). 2. Test Procedure and Equipment Used The pertinent test equipment commonly used in our facility for measurements is listed in Table 2.1 below. The middle column identifies the specific equipment used in these tests. Table 2.1 Test Equipment. Test Instrument Eqpt. Used Manufacturer/Model Spectrum Analyzer (0.1-1500 MHz) Hewlett-Packard, 182T/8558B Spectrum Analyzer (9kHz-22GHz) X Hewlett-Packard 8593A SN: 3107A01358 Spectrum Analyzer (9kHz-26GHz) X Hewlett-Packard 8593E, SN: 3412A01131 Spectrum Analyzer (9kHz-26GHz) Hewlett-Packard 8563E, SN: 3310A01174 Spectrum Analyzer (9kHz-40GHz) Hewlett-Packard 8564E, SN: 3745A01031 Power Meter Hewlett-Packard, 432A Power Meter Anritsu, ML4803A/MP Harmonic Mixer (26-40 GHz) Hewlett-Packard 11970A, SN: 3003A08327 Harmonic Mixer (40-60 GHz) Hewlett-Packard 11970U, SN: 2332A00500 Harmonic Mixer (75-110 GHz) Hewlett-Packard 11970W, SN: 2521A00179 Harmonic Mixer (140-220 GHz) Pacific Millimeter Prod., GMA, SN: 26 S-Band Std. Gain Horn S/A, Model SGH-2.6 C-Band Std. Gain Horn University of Michigan, NRL design XN-Band Std. Gain Horn University of Michigan, NRL design X-Band Std. Gain Horn S/A, Model 12-8.2 X-band horn (8.2- 12.4 GHz) Narda 640 X-band horn (8.2- 12.4 GHz) Scientific Atlanta , 12-8.2, SN: 730 K-band horn (18-26.5 GHz) FXR, Inc., K638KF Ka-band horn (26.5-40 GHz) FXR, Inc., U638A U-band horn (40-60 GHz) Custom Microwave, HO19 W-band horn(75-110 GHz) Custom Microwave, HO10 G-band horn (140-220 GHz) Custom Microwave, HO5R Bicone Antenna (30-250 MHz) X University of Michigan, RLBC-1 Bicone Antenna (200-1000 MHz) X University of Michigan, RLBC-2 Dipole Antenna Set (30-1000 MHz) X University of Michigan, RLDP-1,-2,-3 Dipole Antenna Set (30-1000 MHz) EMCO 2131C, SN: 992 Active Rod Antenna (30 Hz-50 MHz) EMCO 3301B, SN: 3223 Active Loop Antenna (30 Hz-50 MHz) EMCO 6502, SN:2855 Ridge-horn Antenna (300-5000 MHz) X University of Michigan Amplifier (5-1000 MHz) X Avantak, A11-1, A25-1S Amplifier (5-4500 MHz) X Avantak Amplifier (4.5-13 GHz) Avantek, AFT-12665 Amplifier (6-16 GHz) Trek Amplifier (16-26 GHz) Avantek LISN Box University of Michigan Signal Generator Hewlett-Packard 8657B 3 3. Configuration and Identification of Device Under Test The DUT is a TPMS transmitter 2 x 0.75 x 3 inches in size. It operates at 315 MHz and the carrier is pulsed FSK. The DUT may be LF activated (125 kHz). The RF (315 MHz) antenna is located on the PCB. Two models exist for this device, the High Line 52933-1G000 and the Low Line 52933-3L000. Both devices have identical PCB’s, with different software to allow for changes in the transmission pulse pattern. The pulse patterns for these models are discussed in the Modes of Operation exhibit and are demonstrated in Figure 6.1. The DUT was designed and manufactured by Lear Corporation, 5200 Auto Club Dr., Dearborn, MI 48126-9982. It is identified as: Lear Corporation Transmitter Model(s): 52933-1G000 (High Line), 52933-3L000 (Low Line) FCC ID: KOBHT05ATPM (High Line), KOBHT05TPM (Low Line) IC: 3521A-HT05ATPM (High Line), 3521A-HT05TPM (Low Line) Since the transmitter pulse patterns are different for the respective models, two FCC and IC numbers are requested. 3.1 Modifications Made There were no modifications made to the DUT by this laboratory. 4. Emission Limits The DUT tested falls under the category of an Intentional Radiators and the Digital Devices. For FCC, it is subject to Part 15, Subpart C, (Section 15.231), Subpart B, (Section 15.109), and Subpart A, (Section 15.33). For Industry Canada it is subject to RSS-210, (Sections 6.1 and 6.3). The applicable testing frequencies with corresponding emission limits are given in Tables 4.1 and 4.2 below. As a digital device, the DUT is exempt. 4.1 Radiated Emission Limits Table 4.1. Radiated Emission Limits (FCC: 15.33, 15.35, 15.109; IC: RSS-210, 6.2.2(r)). (Digital Class B) Freq. (MHz) E lim (3m) μV/m E lim dB(μV/m) 30-88 100 40.0 88-216 150 43.5 216-960 200 46.0 960-2000 500 54.0 Note: Average readings apply above 1000 MHz (1 MHz BW) Quasi-Peak readings apply …

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