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, No. 33-46719) of Trimble Navigation Limited
of
our report dated June 1, 2006, with respect to the statements of net assets
available for benefits of Trimble Navigation Savings and Retirement Plan as
of
December 31, 2005 and 2004, 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,
2005, which report appears in the December 31, 2005 annual report on Form 11-K
of Trimble Navigation Savings and Retirement Plan.
MOHLER,
NIXON &
WILLIAMS
Accountancy
Corporation
Campbell,
California
June
26,
2006