solonoid question
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Joined: Jul 2003
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It means that the PCM can detect if the solenoid works by looking at the inductive kickback in the circuit.
If the solenoid is commanded on and there is no inductive change in the circuit the PCM can deduce that the solenoid is stuck. It then sets a code that the inductive signature for that solenoid is missing, so the tech checks for a stuck solenoid.
If the solenoid is commanded on and there is no inductive change in the circuit the PCM can deduce that the solenoid is stuck. It then sets a code that the inductive signature for that solenoid is missing, so the tech checks for a stuck solenoid.
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Junior User
Joined: Apr 2001
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OK. Very good explaination. Thank you! Now the 95-96 do not use this "inductive signature", where as the 97-up do. The parts house I'm dealing with says that the non inductive soloniod has been superceeded with the inductive type. Does this sound correct? I suppose if the older (95-96) PCM didn't look for a signal it wouldn't care if it was there, (as long as it didn't get confused). Interestingly enough, the newer ones are much less expensive. What are your thoughts on this?
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