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2000 S70, code 1550, after strut replacement

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2000 S70, code 1550, after strut replacement

Post by Rbaratt » Sun Jul 16, 2017 6:06 pm

After changing struts, spring seats etc. i now have a code 1550. Both the check Engine light and ABS light are on. Every time I clear the CEL code, it comes back. The ABS light is always on. During the repairs I removed the ABS wheel sensor but never unpluggged any connectors. Not sure what to check at this point, any suggestions would be greatly appreciated.
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Re: 2000 S70, code 1550, after strut replacement

Post by bmdubya1198 » Sun Jul 16, 2017 7:33 pm

I would double check the wires on those ABS sensors. The wires could have pulled out of the connector from tension. Obviously make sure the connectors are plugged it correctly.
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Re: 2000 S70, code 1550, after strut replacement

Post by kahl » Sun Jul 16, 2017 7:34 pm

Is the wheel sensor seat firmly/completely in the well on the spinal? The 10mm bolt tightened? DId the tip of the sensor get any grease, oil or debris on the tip? When you removed the ABS cable from the old strut was it stretched while removing?

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Re: 2000 S70, code 1550, after strut replacement

Post by abscate » Mon Jul 17, 2017 7:39 am

Go to the connector up on the strut and measure the sensor resistance across the two terminals. It should be about 1150+-250 Ohms (Ill find exact number from mattymoo at midwestABS and post)

...from his website - look familiar??


Wheel sensors. If you think you have a sensor issue, it should test out between 900-1380 ohms. Always check the plug going into the wheel sensors. They may not be plugged in all the way, they could be cracked or the wiring could be stressed. I've found that people that have recently had front end work done on their car routinely run into sensor problems. Why? People forget to unplug them, then when moving the steering knuckle out of the way they stress the connection. They are located front and rear behind the brake rotor dust shield, and are held in place by one 10mm bolt. I've also seen the wiring rub against the sway-bar end links, rubbing the insulation off down to bare wire. Also, the wiring likes to fray where it enters the plug before the wheel sensor..almost always up front.
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