tangent Posted May 26, 2007 Report Share Posted May 26, 2007 This is Ridiculous.. the 68 521 headlight switch has 5 pins, the 70 parts truck 521 has a 4 pin... Often parts suppliers dont recognize a 521 in 68 they only show 520, I bet the 520 had a 5 pin Quote Link to comment
mklotz70 Posted May 26, 2007 Report Share Posted May 26, 2007 I'm pretty sure the 4 pin is the heater switch... Quote Link to comment
tangent Posted May 26, 2007 Author Report Share Posted May 26, 2007 I'm pretty sure the 4 pin is the heater switch... Maybee the Dude before me got into the wiring, cause it was in the dash and had the little light on the knob and everything.. Thanks... Quote Link to comment
71-521 Posted May 26, 2007 Report Share Posted May 26, 2007 my 71 has a 4 pin plug for the heater but only 3 terminals in it... one for power in and then hi and low... can't see my light switch with out pulling it out of there... Quote Link to comment
datzenmike Posted May 26, 2007 Report Share Posted May 26, 2007 For what it's worth I have a 521 (year unknown) diagram of the six terminal plug, with four wires to it. Two red and two green/blue. The red #1 terminal goes to the fuse box, the red #4 goes to the headlights. The green/blue #6 termial goes to the fuse box, the #3 green/blue goes to the parking lights circuit. The wiper motor has five wires, but a different shape plug I think. Quote Link to comment
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