4T60 wiring - Pennock's Fiero Forum 28It's a 1/8 pipe plug. The original plug for the tcc on the th125 trans has a purple wire and a tan and black. The purple wire has power to it when the key is on and when you step on the brake the power is interrupted (off ) and the tcc disengages. The tan and black wire gets cut and you splice it into the switch. So you cut the wire about 3 inches away from the plug and run one section from the plug down to the switch and then run another wire Related searches for 1986 fiero wiring diagram pontiac fiero wiring diagramfiero wiring harness2000 pontiac bonneville wiring diagram2005 pontiac montana wiring diagrampontiac wiring diagrams schematicspontiac wiring diagram free1976 pontiac catalina wiring diagram1989 firebird wiring diagram
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