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**VetteVet** · 04-13-2017, 11:41 AM

The green wires that go to the ignition switch are for the temp light to ground the sender wire, when the key is turned to the start position. this causes the light to come on as a test for the bulb. One of the green wires then continues on to the dash cluster to the number 5 pin on the cluster plug, to ground the light when the sender senses an overtemp on the engine.

When the factory installed the gauge cluster the light was no longer used and the two green wires were no longer used, instead one green wire was ran to the cluster plug and was moved to pin 6 on the plug. If your cluster has been converted then you are fine.

04-13-2017, 11:41 AM	#2
VetteVet Msgt USAF Ret Join Date: Jan 2005 Location: Kalamazoo, Michigan Posts: 8,703	Re: Wiring question 71 c10 The green wires that go to the ignition switch are for the temp light to ground the sender wire, when the key is turned to the start position. this causes the light to come on as a test for the bulb. One of the green wires then continues on to the dash cluster to the number 5 pin on the cluster plug, to ground the light when the sender senses an overtemp on the engine. When the factory installed the gauge cluster the light was no longer used and the two green wires were no longer used, instead one green wire was ran to the cluster plug and was moved to pin 6 on the plug. If your cluster has been converted then you are fine. __________________ VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative.