Jim, The original fan fail module, needs to be taken out and replaced, it will constantly give problems. The factory replacement was a jumper wire. No fused protection. With The Fan Fix, it eliminates the Fan fail module, the pesky circuit breaker that is clicking on and off and runs each fan on it own 40 amp relay, we also give you dash indication when your getting power. No more fan problems. John Hervey www/specialTauto.com