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cadillac seville brake problem


sonic1

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hi I have a problem my cadillac. brake warning light in dash is on and it*s says chek brake fluid and traction disabled . I change brake fluid sensor and wiring it*s okay and there is no service code in curent and brake and abs working normal and everyting else too working normal only that light and says chek brake fluid and traction disabled car is cadillac seville sts 4,9.l engine 1992.year

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:welcomesmiley:

Clear the codes and that should fix it. Here's how to get at the codes:

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Obvious question but is the fluid up to where it belongs?

Since you changed your level sensor, look this wiring diagram over. The low brake switch grounds the circuit when the fluid is low. Hope this helps with your diagnostics

1991CadillacDICIPC.jpg

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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There is only one problem with that schematic. I have stared at it for quite some time and something does not makes sense. If you look, on the Information Center, the; brake, coolant, engine oil, inflatable restraint, SES lights get their power from G1 or circuit 139. The brake indicator light connects to the IPC at RT2, coming out of RT11 on the IPC, it goes directly to C201, via a flex ckt, into G12 on the C201 connector.

C201 is a connector with 118 cavities. This connector C201, is behind LH side of I/P, right of steering column. Coming out of this connector on the other side at G1is a .8 TAN/WHT wire that goes to S248.

At this point, I can not find S248's location in your from my manual, for some reason they don't note its location, but, according to the schematic above, the park brake switch, low brake fluid switch and the Ignition Switch bulb test (via start), can ground circuit 33 to turn on your light.

Now be careful, this schematic is from 1991 Seville, your's could be slightly different. BECAUSE, you said you are getting a LOW BRAKE FLUID message, I don't see a facility on the schematic to cause a LOW BRAKE FLUID message.

Are you getting a LOW BRAKE FLUID message on your DIC OR, a BRAKE light indicator?

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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this cadillac is analog cluster no digital and sensor work normal when fluid is low it*s connector ground I take wire off to cluster and still brake light is on and it*s says chek brake fluid and traction disabled I wonder what else can turn this light on.. and I think are this car a*t all traction controll this car is year 1992 and 4,9.l engine

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it*s says chek brake fluid and traction disabled . I change brake fluid sensor and wiring it*s okay

Okay, so you have brake fluid in the reservoir?

You changed the brake fluid sensor to a new, known good sensor?

How did you check the wiring from the sensor back to the source?

When was the brake fluid last changed? Could the brake fluid properties changed due to use in a way that causes the brake fluid sensor to give a false positive?

Bruce

2023 Cadillac CT4-V Blackwing

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Yes.. I have a brake fluid in reservoid and sensor in bran new. and we mesuring a wiring we take of the cluster and we mesuaring a wire it*s not a groud when I but back wire in cluster it*s get a groud ( I take wire off to cluster and still brake light is on and it*s says chek brake fluid and traction disabled I wonder what else can turn this light on)

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