ABS and handbrake lights have turned on

Tiny
LAURENP39
  • MEMBER
  • 2006 KIA SEDONA
  • 2.9L
  • VR6
  • AUTOMATIC
  • 150,000 MILES
I’ve tried all I can think of to fix the problem with no luck.
Friday, November 29th, 2019 AT 8:34 AM

9 Replies

Tiny
AL514
  • MECHANIC
  • 4,098 POSTS
Hello, there is a diagnostic code stored for the ABS system, and thats why the light is on. The system detected and error and is most likely shut down. If you go to your local parts store, they can scan the ABS computer for codes and this will give you some direction as to whats wrong. This is almost the same as scanning for a code when the check engine light is on. Let us know what code is stored and we can go from there.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-
light-on-or-flashing
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Friday, November 29th, 2019 AT 12:12 PM
Tiny
LAURENP39
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We have already done this and no code is coming up.
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Friday, November 29th, 2019 AT 1:31 PM
Tiny
AL514
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Is your brake fluid full in the master reservoir?
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Friday, November 29th, 2019 AT 1:45 PM
Tiny
LAURENP39
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Yes, it’s where it should be at.
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Friday, November 29th, 2019 AT 1:56 PM
Tiny
AL514
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Okay, have you inspected each wheel sensor and the wiring to them? These will usually set a code when they fail but any error in the system will shut down the ABS. Also check the wiring harness around the abs module for damage.
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Friday, November 29th, 2019 AT 2:01 PM
Tiny
AL514
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You can also try unplugging the brake fluid level switch and the brake pedal switch to see if it turns the lights out. It's tough with no diagnostic trouble codes giving direction.
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Friday, November 29th, 2019 AT 2:06 PM
Tiny
AL514
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There is also a technical service bulletin about bad ground wires for the ABS module. Inspection of all chassis grounds should be done just as a precaution.
Communication Number: 018, Date: 2007-11-01 Category: 046400 SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT Summary: SEDONA (VQ) ABS/ESC WARNING LAMP ON - POOR GROUNDS
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Friday, November 29th, 2019 AT 2:24 PM
Tiny
LAURENP39
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All he been checked and is fine.
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Thursday, December 5th, 2019 AT 8:18 AM
Tiny
AL514
  • MECHANIC
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Okay, I found instructions for finding a bad ground wire that has paint under it and isn't grounding properly.
1. Locate the ground point for G19 and G20. This is located behind and close to the ABS/ESC unit, on the LH outward panel.
Using a 1/4-inch-drive ratchet, 14-inch extension and 10 mm flex/swivel socket, reach behind he ABS/ESC unit to remove the G19 †G20 ground bolt. You may need to insert your other hand over top of the ABS/ESC unit to guide the socket onto the bolt. The bolt used for G19 †G20 is a self-tapping screw which collects debris when first inserted.
Move the ground lug away from the threaded hole so that no debris will collect on or between the ground surfaces during the thread cleaning process. Clean the bolt threads with a stiff bristle brush. Do not use a wire wheel, as this can damage the bolt’s self-tapping capability. Reinstall the bolt fully without attaching the ground lug. Run the bolt in and out completely three times (without fully removing he bolt) in order to clean the body’s thread hole. Once again, completely remove the bolt and clean the threads with a stiff bristle brush. Used compressed air to remove any remaining debris from the threaded hole, body surface and the bolt’s threads. This is the technical bulletin for the abs, break light staying on.
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Saturday, December 7th, 2019 AT 9:21 AM

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