EXHIBIT 23

                    CONSENT OF INDEPENDENT REGISTERED PUBLIC
                                 ACCOUNTING FIRM


We consent to the  incorporation by reference in the  Registration  Statement on
Form S-8 (No. 33-39647, No. 33-45167 and 33-46719) of Trimble Navigation Limited
of our report dated May 24, 2005,  with respect to the  Statements of Net Assets
Available for Benefits of the Trimble  Navigation Savings and Retirement Plan as
of December 31, 2004 and 2003,  the related  Statements of Changes in Net Assets
Available  for Benefits for the years then ended,  and the related  Supplemental
Schedule  H, line 4i - Schedule  of Assets  (Held at End of Year) as of December
31, 2004,  which report  appears in the December 31, 2004 annual  report on Form
11-K of the Trimble Navigation Savings and Retirement Plan.


/s/ Mohler, Nixon & Williams
----------------------------

MOHLER, NIXON & WILLIAMS
Accountancy Corporation

Campbell, California
June 22, 2005