Question about 2005 Jeep Grand Cherokee
Ive searched everywhere and even downloaded a manual online for a 2005 jeep cherokee laredo with the 4.7l v8, i recently put a dvd/cd player in it that also has navigation, but in oreder for the navigation to worki have to hook a wire up to the vehicles speed sensor wire, i need to know which color wire that is behind the guage cluster where the speedometer is.. if yuou can help i would be forever indebted to you
There is o actual single wire carying the vehicle speed signal to the cluster. the speedometer receives a signal over what is called the can bus system. the wheel speed sensors send a signal to the antilock brake module which in turns sends a signal to the pcm. the pcm then sends a signal over the can bus system to various controllers including the cluster. you can not tap into this wires as it will effect the entire system
Posted on Jan 08, 2009
Hi rueddie , i have been looking at this instrument cluster schematics , and i don't see per say a speed sensor input , that information is interpreted by the pcm from the transmission sensors and probably converted into a different type of bus signal to the cluster display . how ever , i think you might be able to accomplish your mission by tapping in between the trans and pcm , i don't know exactly what you need to do for your nav system , hopefully your directions specifically state tap into speed sensor output or something . the pcm is located at the right rear of the engine compartment , see picture of the important part of the schematic , i could send you the whole picture if you like but this is the piece of circuitry your describing .
i would figure your looking for pin 32 dark green / brown wire output sensor , but your on your own there. if this is correct you could tap that wire and run wire thru firewall somewhere into your nav unit . if i'm totally off base please don't rate me , if you need more info please ask . good luck .
Posted on Jan 08, 2009
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Posted on Jan 02, 2017
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