Used part that was incorrectly installed on our ‘05 but is for a 2003-2004 Hummer H2. Reads 527 Ohms ± on bench test. Infer good working condition. If the part does not work for you return in exact same condition with same Ohm reading for refund less shipping and $10 handling. (MetaLeash proudly drives GMC Hummers and are offering parts to the Hummer Community).