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Old 12-22-2010, 09:12 PM
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ok my check engine light came on was able to pull a code of p0571 off of it. i dont have the sheet that tells me what it means and whats the reasons and ways to fix the problem. thanks ahead of time!
 
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Old 12-22-2010, 09:54 PM
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swartlkk (Kyle) has some stickies posted for DTC's.
I searched for it & couldn't find it in there - very odd! So Google it is http://www.hotrodlane.cc/New%20LS%20...TC%20P0571.htm

hope that helps or google it & look for others

as a footnote; it always helps if you state what year, make, model you're talking about
 
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Old 12-22-2010, 09:56 PM
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P0571 DTC (cruise control brake switch circuit)First Check your fuse for the Cruise Control SystemHeres the info I gotDTC P0571Circuit DescriptionThe TCC Brake (cruise release) switch is a normally closed switch. When the TCC Brake switch is closed, (brake pedal released) the PCM senses ignition voltage on the TCC Brake switch signal circuit.If the PCM senses a voltage on the TCC Brake switch signal circuit when the TCC Brake switch should be open, this DTC sets.Conditions for Running the DTCThe engine speed is greater than 700 RPM. The engine operates for greater than 2 seconds. The wheel speed is greater than 48 km/h (30 mph) in order to enable the diagnostic. The diagnostic disables when the wheel speed is below 16 km/h (10 mph). Conditions for Setting the DTCThe PCM detects voltage on the TCC Brake switch circuit when the TCC Brake switch should be open. All above conditions are present for 1.5 seconds. Action Taken When the DTC SetsThe powertrain control module (PCM) stores the DTC information into memory when the diagnostic runs and fails. The malfunction indicator lamp (MIL) will not illuminate. The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information in the Failure Records. Conditions for Clearing the DTCA last test failed, or current DTC, clears when the diagnostic runs and does not fail. A history DTC will clear after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic. Use a scan tool in order to clear the DTC. Diagnostic AidsRemove any debris from the PCM connector surfaces before servicing the PCM. Inspect the PCM connector gaskets when diagnosing/replacing the modules. Ensure that the gaskets are installed correctly. The gaskets prevent contaminate intrusion into the PCM. For any test that requires probing the PCM or a component harness connector, use the Connector Test Adapter Kit J 35616-A . Using this kit prevents damage to the harness/component terminals. Refer to Using Connector Test Adapters in Wiring Systems. Test drive the vehicle if a switch or circuit condition cannot be located. An intermittent condition may be duplicated during a test drive. For the TCC Brake switch adjustment refer to Stop Lamp Switch Adjustment in Hydraulic Brakes. For an intermittent, refer to Testing for Intermittent and Poor Connections in Wiring Systems. Test DescriptionThe number below refers to the step number on the diagnostic table.This step determines if the fault is present.Step Action Yes No Schematic Reference: Cruise Control Schematics 1 Did you perform A Diagnostic System Check - Cruise Control? Go to Step 2 Go to Diagnostic System Check - Cruise Control 2 Connect a scan tool. Turn ON the ignition, with the engine OFF. Monitor the TCC Brake switch parameter in the PCM data list. Does the brake switch parameter indicate Applied? Go to Step 3 Go to Diagnostic Aids 3 Turn OFF the ignition. Disconnect the TCC Brake switch. Turn ON the ignition, with the engine OFF. Observe the TCC Brake switch parameter in the PCM data list. Does the TCC Brake switch parameter indicate Released? Go to Step 5 Go to Step 4 4 Test the TCC Brake switch signal circuit for a short to voltage.Did you find and correct the condition? Go to Step 10 Go to Step 7 5 Inspect the TCC Brake switch for proper adjustment. Refer to Stop Lamp Switch Adjustment in Hydraulic Brakes.Did you find and correct the condition? Go to Step 10 Go to Step 6 6 Inspect for poor connections at the harness connector of the TCC Brake switch. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.Did you find and correct the condition? Go to Step 10 Go to Step 8 7 Inspect for poor connections at the harness connector of the PCM. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.Did you find and correct the condition? Go to Step 10 Go to Step 9 8 Replace the TCC Brake switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes.Did you complete the replacement? Go to Step 10 -- 9 ImportantProgram the replacement PCM. Refer to Powertrain Control Module (PCM) Programming in Engine Controls.Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement in Engine Controls-3.8L or Powertrain Control Module (PCM) Replacement in Engine Controls-5.7L.Is the action complete? Go to Step 10 -- 10 Use a scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset? Go to Step 2 System OK
 
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Old 12-22-2010, 09:56 PM
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Uhmmmm....Year? Make? Model? Engine?
 
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Old 12-22-2010, 10:29 PM
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Sry my bad its a 1998 chevy blazer lt 4whl drive 4.3 vortec

Wow thanks timmy alot to read but that gives me a place to look into. Kinda odd since we use the.cruise control alot as we live way out in the boonies but oh well thanks .
 

Last edited by swartlkk; 12-23-2010 at 07:41 AM. Reason: *Combining Consecutive Posts* - Please use the EDIT feature to add additional information to your post if another member yet to respond.
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Old 12-23-2010, 07:48 AM
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Not all DTC's are posted in the Tech Article (DIY) subsection, just ones that have come up in the past. And through searching under your vehicle application, P0571 does not come up as a valid code...

What are the symptoms you are experiencing?

TimmyBlaze, please try to put that information into some kind of readable format. All one run-on sentence makes it a real pain to work through.
 
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Old 12-23-2010, 03:59 PM
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it wont shift untill 3 grand and when you get to 3 grand you let off the gas like ur shifting a 5 spd. and at 60 mph it runs at 2500 rpms
 
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Old 12-23-2010, 04:03 PM
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Sounds more like the code was P0751 (my initial thoughts) which is a code dealing with shift solenoid A. This sounds very much like a solenoid failure.

P0751 - Shift Solenoid A Performance or Stuck Off

If solenoid A is stuck off, then you will only have 2nd & 3rd gears.
 
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Old 12-23-2010, 04:50 PM
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ah ok is it to late to fix or can i fix that and hope like hell that fixes the dang thing?
 
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Old 12-23-2010, 04:52 PM
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If that is the code, it should be relatively easy to fix. Diagnose the problem first and then if necessary, change the shift solenoid. It is easily accessible by dropping the transmission pan.
 


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