Code 42 help needed.
Ever since I've installed my Translator+ and Ext chip I get a code 42 whenever I use my TC lockup switch. I'm wondering if this is some sort of voltage spike. After reading this thread
http://turbobuick.com/forums/showthread.php?s=&threadid=47061
"And to go just a bit deeper as to why this happens. In the ecm is a quad driver chip. Inside this chip, there are two pairs of diodes. The cathodes of these diode pairs are tied together and tied to an external zener diode (40v). It's the capacitance of these diodes that is letting that negative edge of the back emf pulse to interfere with the ALDL data. The low speed fan relay and the ALDL data are on one pair of these diodes. "
I'm wondering if this is related?
Paul
Ever since I've installed my Translator+ and Ext chip I get a code 42 whenever I use my TC lockup switch. I'm wondering if this is some sort of voltage spike. After reading this thread
http://turbobuick.com/forums/showthread.php?s=&threadid=47061
"And to go just a bit deeper as to why this happens. In the ecm is a quad driver chip. Inside this chip, there are two pairs of diodes. The cathodes of these diode pairs are tied together and tied to an external zener diode (40v). It's the capacitance of these diodes that is letting that negative edge of the back emf pulse to interfere with the ALDL data. The low speed fan relay and the ALDL data are on one pair of these diodes. "
I'm wondering if this is related?
Paul
