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geunther · 10-22-2020, 01:34 PM

Agree with KWMECH. Wires for TCS solenoid. The green wire is for the secondary temp sensor related to override TCS function, not for the temp gauge. The temp sensor for TCS function was between 6 and 8. So, trucks with TCS had two temp sensors.

10-22-2020, 01:34 PM	#7
geunther Registered User Join Date: Apr 2005 Location: Cheyenne, WY Posts: 742	Re: What are these wires for ? 72 GMC Agree with KWMECH. Wires for TCS solenoid. The green wire is for the secondary temp sensor related to override TCS function, not for the temp gauge. The temp sensor for TCS function was between 6 and 8. So, trucks with TCS had two temp sensors.