69sroadster Posted June 30, 2015 Posted June 30, 2015 I've learned that the USDM service manual wiring diagrams do an okay job of helping me chase down electrical short circuits but leave a few things out or have some differences from my JDM model. Does anyone have a S130 JDM wiring diagram or service manual? I've found a relay/box under my driver's seat that doesn't exist on the USDM manuals. It's labeled "Switching Module" and one of the pins (White with Red stripe) is shorting out somewhere up stream. The problem is I cannot figure out where it is going and what is feeding to that mystery box. Any help? In case you're wondering, I've done a SR20DET swap a long time ago. Everything was fine until about two months ago when the electrical system went goofy, and started to burn up the primary fusible link. So far I found that the starter solenoid was hanging up and shorting, the alternator diode(s) blew and was shorting through the case, the 02 sensor is shorted, the license plate light shorted, one of the horn green power wires shorted, and the ACSD controller box is shorted internally. I'm getting much closer now to having everything else eliminated from the short circuited category. It's been a long journey so far using the USDM wiring diagram and removing things from the wiring looms one by one. Thanks in advance and for taking the time to help a lifelong Z enthusiast out, Sam in Hawaii Quote
Moderators PB260Z Posted June 30, 2015 Moderators Posted June 30, 2015 Gidday From the Aus spec S130 Manual. These them ? If yes will post up wiring diagrams. Cheers Quote
Moderators PB260Z Posted June 30, 2015 Moderators Posted June 30, 2015 A bit of detail from the wiring diagram. The only White / Red wire in that area on the diagram is the Handbrake switch. Maybe the Aus spec diagram can't help. Quote
69sroadster Posted July 2, 2015 Author Posted July 2, 2015 Yeah you're right, it looks the same as the US setup but on the right side. My stinkin JDM has at least two or three more to the right of those three, plus another one tucked inside that forward seat frame rail. One of the guys at work mentioned that he might have a fancy wire continuity tester that he used to use on aircraft. It sounds like magic to me right now so we'll see if that will help. I think it sends a AC pulse through the wire and induction down the line to see where it goes and if it's broken up somewhere. Thanks for looking. Quote
Moderators PB260Z Posted July 2, 2015 Moderators Posted July 2, 2015 Gidday The diagrams I have don't show anything else in that area Good luck in sprting it out. Cheers PB Quote
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