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1972 Deville, 2006 DTS
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54 Posts
Discussion Starter · #1 · (Edited)
I went to airport left veh came back 5 days later started veh abs lights,traction control,service stability system lights came on drove a couple days no problems lights went off and came back on. I went and had the code read at Tuffy they told me it was (brake pressure modulator valve pump motor stalled) $1113 to fix. Is there away around this brakes work fine lights are really annoying. lights come on sometime here in there and stays. this is for a 98 Deville
 

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2020 XT4, 70 Cougar conv, 2002 DTS
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908 Posts
Don't know an easy way to get those warnings to go out. When they are lit, your car does not have ABS, traction control, or stability systems that can be life savers. Of course, everyone drove cars for years without them and my 70 Cougar doesn't have them, but they probably account for a major part of the big reduction in US auto accident death rates in recent years.

Anyway, you could pull off the Instrument Cluster & disable the ABS light. But you'd still get the Service Stability System & Traction messages.

The pump that is running too slowly - intermittently, when the lights come on - is part of the Brake Pressure Modulator Valve (BPMV) as you know. It isn't too bad a DIY project to replace if you are so inclined. Requires car to be jacked up & left front tire taken off to get access. A Factory Service Manual (FSM) from Helm or eBay has diagrams & steps. You could get a used BPMV at a yard to save $, or buy a new one from one of our sponsors here & not pay retail. If you don't want to DIY, you could bring it to a mechanic who is willing to use your part - would not cost $1,100 that way.

Lastly, you don't need to go to a store to get your codes read, you can read them yourself from your driver's seat. See this thread:

http://www.cadillacforums.com/forum...ncluding-1985/138257-how-pull-codes-dtcs.html

Good luck.
 

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2020 XT4, 70 Cougar conv, 2002 DTS
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908 Posts
iametarq - great post. Even though that ground is hard to get at, if that is the OP's intermittent problem, it would be a LOT cheaper to fix than replacing the BPMV!
 

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98 Deville, '15 Ford Fusion Hybrid Titanium, '12 Ford Escape
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iametarq - great post. Even though that ground is hard to get at, if that is the OP's intermittent problem, it would be a LOT cheaper to fix than replacing the BPMV!
I certainly hope so. I wish I could go back and edit the post, because after I realized the location of the BPMV getting at the ground on the motor itself was easy (remove FL wheel, remove forward splash guard).

However, if the issue is in the wiring buried in the harness as one of the other posters mentioned, the solution I would propose next would be to run a new ground from the BPMV post to a clean spot on the frame.
 
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