I've got a little too much going on at work to give you the step by step for your year, but in general, when in doubt I like check 3 things:
1. do I have continuity between the cluster pins and the PCM where I'm supposed to have continuity
2. do I have good ground where I'm supposed to have ground
3. do I have 12V (or 5V) where I'm supposed to
Sometimes it's helpful to swap in a known working cluster just to rule that out as a possible cause. Sorry if some of this has already been suggested I only barely skimmed the earlier replies.
1. do I have continuity between the cluster pins and the PCM where I'm supposed to have continuity
2. do I have good ground where I'm supposed to have ground
3. do I have 12V (or 5V) where I'm supposed to
Sometimes it's helpful to swap in a known working cluster just to rule that out as a possible cause. Sorry if some of this has already been suggested I only barely skimmed the earlier replies.