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Old 03-17-2004, 07:16 PM   #84
Scooby Specialist
Member#: 5743
Join Date: Apr 2001
Chapter/Region: Tri-State
Location: nj/nyc
2007 Kia Optima
gold brick



Diode isolating prevents the hood pin from sending a ground signal back through the Neutral Position wire. The Neutral Position Switch throws ground whenever the vehicle is in gear back to the ECU for idle control.

It's wise to diode isolate the actual Hood Pin from the NPS circuit. Otherwise the ECU will read a false ground signal. Check here for additional info regarding diodes.

Also here for 04 specific wiring information.


Originally posted by Shibby1524
could someone explain what "diode isolating" means?

also I'm looking to get a Clifford RS3.5 for my manual 04 WRX. You think I can do this myself? I have the clifford install manual, this thread, anything else I need?
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