PPS/ABS inoperable due to same sensor?...

7M-GTEric

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Sep 27, 2007
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Alright, so this goes out to anyone who's had ABS/PPS problems. My ABS light has been on ever since I've owned the car, and my steering has always been too stiff at low RPM's/idle. Looking through the service records, I found a receipt from '02 where the PO took the car to Toyota and complained that the ABS light was on and that the power steering was inoperable; according to the receipt, they ran a diagnostic on the ABS and found a code 30, which is an inoperable/missing rear ABS sensor, and they claimed the steering problem was due to a clogged reservoir screen but they didn't clean it.

SO...tonight I dove into the PS system and found the fluid to be at the right level, albeit extremely dirty, but the filter to be mostly clean. Regardless, I cleaned the filter and flushed and bled the system. This didn't help my problem. SO, back to the drawing board...

I was looking at the TSRM and one of the tests it says to run if the PPS is too stiff is to check the rear speed sensor signal to the PPS ECU. I haven't yet done this, but I know for a fact that my rear speed sensor is faulty.

My question (finally) is this; has anyone else ever noticed these two problems together? It's a long shot but I'm thinking I might be able to kill 2 birds with one stone...however, the sensor is extremely expensive from Toyota (I believe I priced it when I first got the car and it was close to $300) and next to impossible to find used. I can live with no ABS, but if this one thing might fix both problems, maybe I could justify the price....
 

7M-GTEric

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Sep 27, 2007
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Then which speed sensor is the second step here referring to?
 

7M-GTEric

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Sep 27, 2007
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Alright...I had that coming. Guess that's what I get for multi-tasking :3d_frown:

I just checked the solenoid valve as per TSRM. I wasn't able to check the continuity cause my tester is dead, but I did do the other test and wasn't able to make it click when connected to battery voltage...guess that's my next step.

Bet those aren't cheap either...this car is killing me.
 

jetjock

creepy-ass cracka
Jul 11, 2005
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Redacted per Title 18 USC Section 798
Sounds like it's open but if not be sure you don't energize it too long. The speed sensor is integral to the speedometer. It can often be fixed with a little care. A quick way of checking it is to use the cruise control diagnostics...
 

7M-GTEric

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Sep 27, 2007
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jetjock;1172768 said:
Sounds like it's open but if not be sure you don't energize it too long. The speed sensor is integral to the speedometer. It can often be fixed with a little care. A quick way of checking it is to use the cruise control diagnostics...

Hmm...well I can't test anything until I can remember to pick up a 9V battery for my tester. Whenever I do, though, I think I'll check the resistance across the solenoid, and re-test the operation just to be sure before moving on to anything else. Toyota quoted me $700 for the assembly as a whole; according to them, it's non-serviceable...needless to say, I hope my problem lies elsewhere....

I'll get back to y'all soon as I figure that out though. Thanks for the help thus far.