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I have a 2002 seville with a P0401 code

I have a 2002 cadillac seville, the SES light is on I checked the codes. I have one code It's P0401. I would like to know what it is and how can I fix It.

Posted by Anonymous on

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 341 Answers

SOURCE: service engine soon light on a 2000 cadillac seville

The service engine soon light indicates you have a problem with the engine management system.The only way to get it to stay off is to lacate and repair whatever is not working correctly. Requires very specialized equipment. Take it to your mechanic.

Posted on Nov 28, 2008

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cadman000
  • 607 Answers

SOURCE: I have a 94 cadillac seville sts, end I have a

First thing you have to do is list all the codes, because some some might be stored for a long time. Pushing the OFF and WARM buttons together and holding will ghive you all the stored codes. Then press OFF and HI together to clear all codes. Hold and wait for bars or 0's. Now start your car and let it get up to proper operating temps. Take car for aride that aincludes all phases of driving including highway speeds. Observe SERVICE ENGINE LIGHT for coming on . Assuming it does , repeat steps previously provided, read codes stored and repair accordingly. If need be contact me with new codes and I will try to assist you.

Posted on Mar 16, 2009

tneubauer
  • 437 Answers

SOURCE: I have check engine light on, trouble code p0401,

P0401 = Exhaust Gas Recirculation, insufficient flow.

I would start with testing the EGR valve and checking the source line for a vacuum leak. EGR may need to be cleaned.

Posted on Jun 08, 2009

motor1258
  • 6674 Answers

SOURCE: 95 Blazer code P0401

Have a little read of this link, it may help you.

http://www.obd-codes.com/p0401

Posted on Jun 19, 2009

  • 202 Answers

SOURCE: My check engine light and TCS light came on. Code

P0401: Isufficient Flow Detected in EGR system.
-clean the EGR port with the carburetor cleaner.
-clean the EGR passage inside the EGR valve with the caburetor cleaner.
Reset the light, if the light still coming back, then replace the EGR valve.

Posted on Apr 26, 2010

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How To Check & Reset Your 2002-2006 Nissan Altima Service Engine Soon (SES)...


The following directions will help you decode your 2002-2006 Nissan Altima's Service Engine Soon (SES) light and reset it.<br /> <br /> <span style="font-weight: bold;">Obtain The Trouble Code</span><br /> <ol> <li>Turn the ignition key to the ON position and wait three seconds.</li> <li>Put the accelerator pedal to the floor and release it five times in less than five seconds.</li> <li>Wait exactly seven seconds. Put the accelerator pedal to the floor for ten seconds until the SES light flashes.</li> <li>Release the accelerator pedal and start counting flashes to obtain the four-digit trouble code.<br /></li></ol> <ul> <li>Long flashes (0.6 seconds) indicate the first digit of the code; count the blinks one through nine and write down the first digit. (Ten blinks indicates a zero.) </li> <li> The next three digits blink faster (0.3 second) and have a 1 second pause between digits.</li> <li>The ECM code repeats until you turn the ignition key to the OFF position.</li> <li>You can look up the trouble codes in the Service Manual.</li> <li>If you get four blinks of ten, or 0000, the ECM indicates no malfunction.<br /></li></ul> <br style="font-weight: bold;" /><span style="font-weight: bold;">Clear The Trouble Code</span><br /> <ol> <li> Clear the code and the SES light by holding the accelerator pedal down to the floor for 10 seconds or more while the SES light is blinking.</li> <li>When the pedal is released, the ECM will erase the trouble code(s).</li></ol>

on Feb 15, 2011 | 2002 Nissan Altima

2 Answers

How do I reset my ac code 2002 cadillac seville sls


unplug your negative terminal on the battery, wait five minutes and plug it back. code should be cleared

Jul 02, 2014 | 2002 Cadillac Seville

2 Answers

Check engine light on


Take it to your local Autozone, they will run a free diagnostic test. if new parts are needed for your car buy used parts online to save some money.

Nov 06, 2013 | 2002 Cadillac Seville

1 Answer

P01377 code


The light is telling you that the sensor that the code refers to is faulty and is outside the parameters set in the cpu. Replace the sensor and restet the system and check for other fault codes for faulty sensors that the cpu has found during the ongoing testing that it does.

Feb 15, 2013 | 1997 Cadillac Seville

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MY 2002 CADILLAC SEVILLE HAS CODES COMING UP WHAT DOES THESE CODES MEAN


Code 507 is for a problem with the idle speed control being too high, and code 741 is for a problem with the torque converter clutch circuit.
You would check for vac leaks and see if the idle air control valve is working, and check the circuit for the torque converter clutch.

Jan 12, 2013 | 2002 Cadillac Seville

1 Answer

My service engine light is on, took it was put on the machine and came back with the code po741 which was said to be a transmission problem. Took it to a transmission shop and was told that my...


Subject:
Service Engine Soon (SES) Light On, Diagnostic Trouble Code (DTC) P0741, Torque Converter Clutch (TCC) Excessive Slip, Transaxle Chuggle, Slip/Surge (Inspect/Replace Internal Transaxle Components) #04-07-30-034 - (08/06/2004)
Models:
1998-2002 Cadillac Eldorado
1998-2004 Cadillac Seville
1999-2004 Cadillac DeVille
2000-2003 Oldsmobile Aurora
there is a write up on this about 3/4 page down.

http://www.cadillacforums.com/forums/cadillac-forum/t-107360.html

Oct 25, 2010 | 2003 Cadillac Deville

1 Answer

No running problems just ses light keeps coming on throwing code p0401


P0401 is mean you have problem with EGR. It could be debris make a blockage on your EGR linkage. Including the valve, clean them thoroughly and re-install and start your car. If problem persist, the potential cause is the valve and need a replacement.

Aug 18, 2010 | Mitsubishi Galant Cars & Trucks

1 Answer

95 Blazer code P0401


Have a little read of this link, it may help you.

http://www.obd-codes.com/p0401

Jun 19, 2009 | 1995 Chevrolet Blazer

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