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International Automotive Technicians Network
Re: 1999 Mercury Grand Marquis
Posted to Technical Discussion Forum on 4/11/2005

Update on earlier post. During further testing I found there should be no voltage on the red/blue wire with key on/ lights off. The 1.45 volts was from the EATC module bleeding voltage to that circuit causing the cluster to dim completly. When the lights were ... Login to read more.