GrayZee Posted March 2, 2005 Share Posted March 2, 2005 I had a slight wiring problem with my Pathfinder last night. Turned out the two pin plug right on the starter was messed up. One wire is black and the other is yellow. Can anyone tell me what the purpose of the yellow wire is? Connecting the black to + will activate the starter but the black one will not. I had assumed that the yellow wire was to feed a circuit to the ecu and would give a + signal when the starter was turning, but I ran a test light to that terminal while the starter was running.. no power.. I only have one electrical schematic but it is what the book calls a "typical one" For a variety of Nissan trucks and it does not help me out at all. Anyone have FSM for a 87 Pathfinder that can look it up for me?? I need to wire up a new circuit and if the yellow wire does not have a meaningful purpose I will just leave it out. BTW, my vehicle has NO clutch switch or inhibitor. Thanks. Quote Link to comment Share on other sites More sharing options...
datsunlover Posted March 2, 2005 Share Posted March 2, 2005 I have an older haynes book for pickup and pathy 80-93. I found one electrical diagram that looks like the circuit you're describing.. It shows a big wire from the battry to the starter, and a little two wire conector going to what apears to be the starter solenoid.. but it only shows ONE wire making it to the starter.. labled B/P. Don't know if that helps.. Quote Link to comment Share on other sites More sharing options...
GrayZee Posted March 3, 2005 Author Share Posted March 3, 2005 Yeah, sounds like the same book to me.. My harness does not look like that one so there has to be a different diagram out there. I will likely do without the yellow wire, but I would sure like to know what it's purpose is. Usually the only thing I ever want a manual for is for torque specs and wiring diagrams. Ticks me off when they don't have any decent diagrams. I have a Haynes 300zx manual... and it's USELESS! Quote Link to comment Share on other sites More sharing options...
Chaparral2f Posted March 3, 2005 Share Posted March 3, 2005 This probably won't help much but the wiring diagram in my Haynes 300zx (z31) book shows a yellow wire from the solonoid that goes to the theft warning relay. On the manual trans model. On the diagram for the automatic trans model the yellow wire runs to the inhibitor relay. Quote Link to comment Share on other sites More sharing options...
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