SC430 - 2nd Gen (2001-2010)

What the heck is a PPS Solenoid aka a C1561 Code?

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Old 04-03-17, 09:55 AM
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DshngDaryl
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Default What the heck is a PPS Solenoid aka a C1561 Code?

I have a C1561 code. It comes out to be a Malfunction In PPS Solenoid Circuit?

Any idea what it means?
Old 04-03-17, 10:08 AM
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Coleroad
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If I recall correctly that is for the power steering
Old 04-03-17, 10:16 AM
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I'm not sure if the one on the sc430 has a filter screen in the solenoid. If it does, the solution could be as simple as cleaning that screen. I was looking to see if I could find that information, but couldn't seem to come up with an answer. Maybe bgw can look in the manual and see if it does.
Old 04-03-17, 10:23 AM
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Maybe this will help. http://c1561-lexus.autotroublecode.com/
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Old 04-03-17, 02:45 PM
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Great site Coleroad. Thanks.
Old 04-03-17, 03:00 PM
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Bgw70
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Here ya go Dashing...

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Old 04-03-17, 03:03 PM
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These may help too...

Old 04-03-17, 03:05 PM
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DshngDaryl
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Thanks Cole,

I changed the solenoid in my power steering because I thought it was leaking. I did not reset the codes. This goes along with the second half of the link you set. It is weird because it is an active code.

Even after the change, I still have the problem. The car is harder to turn when I am going less than a mile an hour.

I guess I have to get under it and see if the harness came loose.
Old 04-03-17, 03:21 PM
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Bgw70
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Originally Posted by DashingDar
Thanks Cole,

I changed the solenoid in my power steering because I thought it was leaking. I did not reset the codes. This goes along with the second half of the link you set. It is weird because it is an active code.

Even after the change, I still have the problem. The car is harder to turn when I am going less than a mile an hour.

I guess I have to get under it and see if the harness came loose.
look very closely for broken vacuum lines or disconnected connectors...it got me after I did the timing belt. Loose connector and no PS at low speed.
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Old 04-03-17, 03:30 PM
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Originally Posted by DashingDar
Thanks Cole,

I changed the solenoid in my power steering because I thought it was leaking. I did not reset the codes. This goes along with the second half of the link you set. It is weird because it is an active code.

Even after the change, I still have the problem. The car is harder to turn when I am going less than a mile an hour.

I guess I have to get under it and see if the harness came loose.
when you changed it, was there a screen in the housing behind it? I know the ls430, sc400 are that way . if you had decreased flow from a plugged screen, would it cause the fault? Hopefully from the diagnostic sheet from bgw, and maybe what little information I know . You can get this figured out.
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Old 04-03-17, 03:38 PM
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Bgw70
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Originally Posted by DashingDar
Thanks Cole,

I changed the solenoid in my power steering because I thought it was leaking. I did not reset the codes. This goes along with the second half of the link you set. It is weird because it is an active code.

Even after the change, I still have the problem. The car is harder to turn when I am going less than a mile an hour.

I guess I have to get under it and see if the harness came loose.
cole made some good points!
here is the link to my thread when I had this issue.
https://www.clublexus.com/forums/sc4...low-speed.html
Old 04-03-17, 03:45 PM
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Originally Posted by Bgw70
cole made some good points!
here is the link to my thread when I had this issue.
https://www.clublexus.com/forums/sc4...low-speed.html
great point bgw, and with dashing being in Arizona. The dry air would make for a greater propensity for cracking of the vacuum lines.
Old 04-04-17, 09:16 AM
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DshngDaryl
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I changed the hoses when I changed the rest of the vacuum lines. I recall having a little problem getting in the tight space. Maybe I didn't connect them as well as I thought.
Old 04-13-17, 05:18 PM
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Well, things have gotten worse. Yesterday I started hearing a screeching, metal on metal sound when I turn the wheel all the way. It happens if I turn it left or right. It is also harder to turn the wheel when I am stopped, though it is not as hard as a car without power steering.

The power steering fluid is at the proper level.
The Vacuum lines are properly attached
The solenoid does not appear to be leaking

Any idea what the screeching noise may be?
Old 04-14-17, 02:54 AM
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Bgw70
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If everything is connected, I suppose you could have a bad PS pump.
have you ever changed the fluid?


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