Question about 2004 Chevrolet Silverado 2500 Crew Cab

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Posted by Anonymous on


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  • 23 Answers

SOURCE: ABS locking up front brakes at low speed

actually your system maybe fine,older ABS systems tend to lock up in low traction conditions

Posted on Jan 17, 2009



  • 172 Answers

SOURCE: When driving at a low rate of speed approx. 1 to

probly a bad sencer

Posted on Apr 15, 2010



  • 54 Answers

SOURCE: 2003 silverado 39,ooo miles. due

make sure all tires are same size and inflated to correct pressure

Posted on May 04, 2009

Doug Keller

  • 208 Answers

SOURCE: My 1996 S-10 Blazer will not shift sometimes and

A faulty VSS (Vehicle Speed Sensor) or related wiring can cause both of your problems, trans and ABS. If the computer doesn't know the vehicle is moving, then it won't shift the trans. If the ABS controller sees wheel speed, but not vehicle speed, it will turn on the ABS light. The VSS is located in the rear transfer case housing. But remember, it may be the VSS, related wiring, a faulty speedo buffer (usually located in the dashboard), ECM, or even the reluctor on the transfer case output shaft. You may want to have a shop scan "data stream", or even have them diagnose the problem.

Posted on Jul 07, 2009


  • 39 Answers

SOURCE: 1996 chevrolet s10 wont shift to overdrive. gives

P1886....Transaxle Shift, Timing Solenoid performance

Posted on Jan 14, 2011

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2007 chevy silverado check engine light code CO201

ABS code not check engine light code .
DTC C0201 00: Antilock Brake System (ABS) Enable Relay Contact Circuit
The solenoid relay, located within the electronic brake control module (EBCM), supplies battery voltage to all of the valve solenoids.
Circuit/System Verification
With scan tool installed, clear the DTCs then drive the vehicle in a straight line at a speed greater than 20 km/h (13 mph). If the DTC did not set as a current DTC see diagnostic aids.
Circuit/System Testing
Test for an open or a short to ground in the battery positive voltage circuit to the EBCM. Verify no open or a short to ground is found.
Test the EBCM ground circuit, an open or high resistance.
? If an open or a short to ground is found, repair the circuit.
Replace the EBCM assembly.

DTC C0201 (Equal to or over 8600 GVW)
The system relay, located within the electronic brake control module (EBCM), supplies battery voltage to all of the valve solenoids and to the Antilock Brake System (ABS) pump motor. When the relay contacts close, the EBCM monitors the voltage supplied to the valve solenoids and compares this voltage to monitored ignition voltage.
Action Taken When the DTC Sets
• The EBCM disables the ABS/DRP.
• The ABS indicator turns ON.
• The brake warning indicator turns ON

Aug 08, 2017 | Cars & Trucks

1 Answer

Where is the ground wire location for a 1996 chev. silverado c1500 5.7 eng. abs Ground wire

the late 90 tahoes and trucks had a corrosion problem with their abs systems crud rust corrosion would get under the sensor and lift it back enough to cause problems such as low speed activation at under 5 mph or codes for all sorts of problems or just plane old short out ---try removing the sensor and clean mount (scrape lightly and put a anti corrosive on hub mount an clean around sensor

May 08, 2016 | Cars & Trucks

1 Answer


first check brake fluid level then you will have to test the wheel speed sensors that the codes refer to. when there is a sensor problem it will activate both the abs and traction control lights. the red brake light comes on when there is low fluid condition(leak),worn brakes that need servicing. also if there is a abs module problem it can set codes. you need to know what the codes mean this is a starting place to diagnoise.

Mar 06, 2014 | 2002 Lincoln LS

2 Answers

ABS and power steering light is constantly on

Hi. The only link between abs and power steering that springs to mind is the steering wheel angle sensor but you really need at least a code read of the systems as the faults may be unrelated. I think spending a few quid at the local garage and getting a proper insite into what is going on will be money well spent. The pedal vibration will probably turn out to be the abs activating on low speed braking as it is seeing a low speed signal from one wheel sensor. This can be caused by an abs speed sensor being improperly gapped or a damaged sensor pick up ring among other things, Again without some real details or codes from the ecu its hard to give a real diagnosis. A visual inspection of the wheel sensors and pick up rings may reveal something - you don't need to know exactly what your looking at just that they all look the same and clean, no missing teeth on the pick up rings or cracks. If you get at least a code read and post the results we might be able to delve a little deeper.

Dec 13, 2013 | 2006 Volkswagen Polo 1.6

1 Answer

2001 Oldsmobile Alero Service Engine light, ABS, and Traction light keep coming on. No code, only history. Can not get the history to clear??

Only the computer can clear history codes . If the problem was fixed in about 100 ignition cycles the computer will clear this codes . Code reader . will it check Codes in the EBCM - electronic brake control module ? ABS DTC'S

Aug 18, 2017 | 2001 Oldsmobile Alero

1 Answer

Service Engine light, ABS light, and Traction light keep coming on and will not clear

The electronic brake control module (EBCM) automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

May 23, 2017 | 2001 Oldsmobile Alero

1 Answer

My ABS , brake , TC Off and slip lights are all on the dashboard. When I brake at low speeds can hear some sort of noise from brakes.

Does it sounds like the ABS activating (a low pitched groan)?

If the ABS light is on it will automatically disable the Traction control and stability control. Typically the ABS will not function when the ABS light is on so you have me curious as what the noise could be.

I have run into several of these with bad wheel speed sensors. There is one at every wheel. You best bet is to scan the ABS module to retrieve codes. This can be done with an ABS specific code reader or a high end multi-function scan tool. Your local parts store may be able to help you with this as well.

Otherwise you will need to make a trip to your local shop or dealer and have them run a diagnosis. There is usually a charge for this!

Otherwise if you have a muti-meter I may be able to help you check the wheel speed sensors, just let me know.

I’m happy to assist further over the phone at

Oct 07, 2011 | 2005 Nissan Maxima

1 Answer

What would give a check engine light and antilock brake light but when checked with a scanner it comes back as no codes found ? its an oldsmobile alero

Are you sure its the "Check engine" light and not the "service vehicle soon" light. They are quite different. Only the check engine light will set a code, either current or history. The ABS will also set a code, but will also illuminate the service vehicle soon light. Aleros are notorious for bad front wheel bearings, which contain the wheel speed sensors for the ABS system. They also have issues with the wiring harnesses going to the wheel speed sensors. Have the front wheel bearings checked for excessive play first, then I would suspect the harness, especially if the lights tend to come on more so when its raining or wet out.

Apr 06, 2011 | Oldsmobile Alero Cars & Trucks

1 Answer

Pontiac G6 ABS Problem

when the ABS light comes on you will not hear or feel anything cause soon as the ABS light comes on the ABS is disabled
sounds like it is weather related (rain,snow)
i would check both rear wheel speed sensor harnesses for water intrusion if you see any corrosion (green) on the terminals replace both the hub and harness
if there is no corrosion then check resistance of the sensor also check for a short to ground
if that is ok then put some dielectric lube on the wheel speed sensor terminals and clear the codes and see what happens
intermittent problems can be hard to find
hope this helps

Dec 30, 2009 | 2006 Pontiac G6

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