EXHIBIT NO. 32.2

            CERTIFICATION OF CFO PURSUANT TO 18 U.S.C. SECTION 1350,
      AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In  connection  with the Annual  Report on Form 10-K of Trimble  Navigation
Limited (the  "Company")  for the period ended January 2, 2004 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), Mary Ellen
Genovese, as Chief Financial Officer of the Company, hereby certifies,  pursuant
to  18  U.S.C.  Section  1350,  as  adopted  pursuant  to  Section  906  of  the
Sarbanes-Oxley Act of 2002, to the best of her knowledge, that:

         (1) the Report fully complies with the requirements of Section 13(a) of
the Securities Exchange Act of 1934, and

         (2) the  information  contained in the Report fairly  presents,  in all
material  respects,  the  financial  condition  and results of operations of the
Company.

/s/ Mary Ellen Genovese
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    Mary Ellen Genovese
    Chief Financial Officer

    March 15, 2004


This  certification  accompanies  this  Report  pursuant  to Section  906 of the
Sarbanes-Oxley  Act of 2002 and shall not,  except to the extent required by the
Sarbanes-Oxley  Act of 2002,  be deemed  filed by the  Company  for  purposes of
Section 18 of the Securities Exchange Act of 1934, as amended.