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A way to pull ABS codes?


supreme_style21

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Is there a way to pull an ABS code? If so, how?

 

simple answer: ABS friendly scanner (snapon modis comes to mind)

 

more complex answer: OBD1 or 2? if 2, then snapon modis, if 1 then ground pin H* (at least I recall it as being H, verify that) and watch the flashout of the ABS light.

 

Warning: ABS codes only list the symptom, which are more often not the cause.

 

* = not all versions of the Kelsey Hayes 4WAL system or the GM delco versions support full diagnostics, your situation WILL vary.

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mm.. that doesn't really help..

I've been wanting to find out why the ABS light is on for ages. (Though I'm pretty sure it's a bad wheel sensor.)

No money to buy a scanner.. so where is this pin H? In the ALDL connector? If that works, where do you look up the flashed sequence of codes?

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mm.. that doesn't really help..

I've been wanting to find out why the ABS light is on for ages. (Though I'm pretty sure it's a bad wheel sensor.)

No money to buy a scanner.. so where is this pin H? In the ALDL connector? If that works, where do you look up the flashed sequence of codes?

what he said

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Here's a link that I believe shows the connection to the "H":

 

http://autorepair.about.com/library/illustrations/bl315a-lib.htm

 

Awesome.. so all you do is cross those two and it flashes out the code?

 

thats the theory! ;-)

 

hint: its like an ecm in that it must sense the diag mode at startup: read key on, engine off

 

But as I said before, not all systems display all codes. Factory service manual should have them listed for your model. IF they are online I dunno, I have not gone lookin for em.

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