This is the source of a P0118 coolant temp over voltage code in a Nissan Xterra. It is just in front of the right rear wheel, clipped to the top of the frame...right above the big rust hole in the muffler.
The cts is literally 18 inches from the ecu, and tested perfectly with a voltmeter back probed into the ecu connector. Problem was, the ecu always started from 40C, and the cluster thought it was -50 all the time.
Some months, that $200 I pay for Identifix is totally worth it. "Does the vehicle have an exhaust leak?" was a very useful sentence.
Some days it feels like I'm working for Dirk Gently. The RR wheel speed sensor codes were totally, fundamentally interconnected. Holistic, one could say.
In reply to Streetwiseguy :
"I don't care about the exhaust leak just fix the dashboard"
This happened a little while ago. Vehicle brought in for transmission not shifting. Engine oil pump was whining, oil looked like black mayonnaise, oil filter was collapsed (gotta love cartridge filters!), engine computer had a litany of codes all related to insufficient oil pressure... which forces the transmission to stay in one gear as a self protection scheme.
Customer was livid... he wanted the trans looked at and didn't care about the engine, and anyway he just changed the oil.
According to the instrument cluster, it had been 27,000mi since the last oil change.
Oddly enough, with fresh oil and filter, the engine made good oil pressure and the transmission worked properly...
In reply to lotusseven7 (Forum Supporter) :
Can someone help me out here? Was this off of a Mini Cooper?
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