dbarton
Dejected by Volvo Corp.
- Joined
- Nov 17, 2002
- Location
- Prosper, TX
I have questions about PIN 30. I'm finding conflicting information in all of the diagram info I can find.
Pin 30 description in most sources says stuff like this:
Park/Neutral position (PNP) switch (automatic transmission).
Information on gear selector position. Used to keep idling speed constant when gear is selected.
P N position: U low (no signal).
D 1 2 3 R: bat (12v signal).
Manual: U low (no signal).
First pic below from: https://ipdown.net/jetronic.info/tiki-index.php?page=LH2.4%20Pinouts%20and%20Diagrams
I understand the concept that LH 2.4 can receive a signal from the auto trans gear selector and adjust the idle when "in-gear." The mystery I have is that I find NO DIAGRAM ANYWHERE which supports that any LH 2.4 Volvo actually used this function.
The only diagrams I find suggest that Volvos using LH 2.4 only sent voltage to Pin 30 when the starter motor is engaged.
Nothing in any P-shift lock diagram points to the answer either.
So does anyone know if the above gear selector idle-increase function actually existed in a Volvo, and maybe Volvo forgot to put it in a diagram, or was this function not used by Volvo?
Thanks, Dave
Pin 30 description in most sources says stuff like this:
Park/Neutral position (PNP) switch (automatic transmission).
Information on gear selector position. Used to keep idling speed constant when gear is selected.
P N position: U low (no signal).
D 1 2 3 R: bat (12v signal).
Manual: U low (no signal).
First pic below from: https://ipdown.net/jetronic.info/tiki-index.php?page=LH2.4%20Pinouts%20and%20Diagrams
I understand the concept that LH 2.4 can receive a signal from the auto trans gear selector and adjust the idle when "in-gear." The mystery I have is that I find NO DIAGRAM ANYWHERE which supports that any LH 2.4 Volvo actually used this function.
The only diagrams I find suggest that Volvos using LH 2.4 only sent voltage to Pin 30 when the starter motor is engaged.
Nothing in any P-shift lock diagram points to the answer either.
So does anyone know if the above gear selector idle-increase function actually existed in a Volvo, and maybe Volvo forgot to put it in a diagram, or was this function not used by Volvo?
Thanks, Dave
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