How to look up Service Engine Soon codes without scan tool

my85grandnational · 03-16-2007, 11:39 PM

I know there is a way to get your SES light to blink out the codes that are stored in your computer, but I cant remember what you have to do. I have a 93 4X4 Blazer with the z code engine that has the service engine soon light on, and I would like to know what it is without having to pay someone to pull the code off for me. Please if you know how to get the code off yourself let me know, and also a list of what codes go with # of blinks of SES light. Thanks Dusty

nd4spd18 · 03-17-2007, 01:08 AM

Jump terminal A to terminal B on the ALDL connector under the drivers side dash, then turn the ignition to on (not start). The SES light will flash out the codes. Also, you can jump terminal A to terminal H to read ABS system codes.

my85grandnational · 03-17-2007, 03:11 AM

Thanks I figured out how to read the SES light codes, but my ABS light is always on, so how do I read its codes? Does it flash just like the SES light will? If so what flashes mean what codes?

nd4spd18 · 04-14-2007, 11:22 PM

Yep, when you jump terminal A to H the ABS light will flash out the codes. At least that's how it works with the 4 wheel ABS system.

You can also jump terminal A to F if you have electronic 4WD, and the 4 high and 4 low indicator lights will flash out transfer case control module codes.

TCossuto · 02-17-2008, 01:06 PM

Anyone have a list of codes handy?

tuknduces · 07-12-2008, 08:59 PM

You should be able to go to your local part store and they can read it for free.

Woogi · 10-28-2008, 12:32 PM

will this jupmer config work with my 92 W code vortec jimmy? My ABS light is on and I would like to read it myself if I can

geneticrider13 · 10-28-2008, 12:56 PM

does this work on any s series truck? i have a 03 s10 2wd 4cyl h code

nd4spd18 · 10-29-2008, 02:03 AM

Quote: Originally Posted by Woogi

will this jupmer config work with my 92 W code vortec jimmy? My ABS light is on and I would like to read it myself if I can

Yes

nd4spd18 · 10-29-2008, 02:05 AM

Quote: Originally Posted by geneticrider13

does this work on any s series truck? i have a 03 s10 2wd 4cyl h code

This connector is only on first gens..... second gens have an OBD-II connector which you need a scanner to read. Most autoparts stores have one they let you use for free that reads OBD-II.

D.T. · 12-28-2008, 12:45 PM

How do you read the "blinking?"

I bought a black market reader on Ebay, but I didn't know about jumping the OBD connector.

Freek · 01-01-2009, 12:09 AM

I'm doing this tomorrow hopefully. It will flash the codes? The SES light will blink or something?

ExtCab96S_Dime · 01-01-2009, 02:03 AM

Quote: Originally Posted by nd4spd18

This connector is only on first gens..... second gens have an OBD-II connector which you need a scanner to read. Most autoparts stores have one they let you use for free that reads OBD-II.

You sure that the 94's have OBD-II? I think they may have been OBD-I still, not that it actually matters for this discussion.

Quote: Originally Posted by Freek

I'm doing this tomorrow hopefully. It will flash the codes? The SES light will blink or something?

Quote: Originally Posted by D.T.

How do you read the "blinking?"

I bought a black market reader on Ebay, but I didn't know about jumping the OBD connector.

After you jumper the two pins and turn it to the run position, the SES light will flash. Say you have a code 45, for example, the light will flash four times, then pause then flash five times. After each code it will pause for a long period of time. That help any?

Edit: Here, in case I didn't explain it well enough, here is a link with a description. Also for anyone looking for the actual codes, they are on this same link

http://www.freeautomechanic.com/diag...blecodes5.html

MrGoodwrenchGM · 10-22-2009, 05:19 AM

One very easy way to check and diagnose engine codes w/o reader:

Bend yourself a paper clip into a u shape, and insert into terminal A and B or the two upper right terminals on your OBD1. (Goin' MacGyver

)

For code readings, check your Haynes Repair Manual if you have one handy, or go to a local parts store and take a gander at one if they'll let you.

actafool4187 · 10-22-2009, 05:31 AM

easier way. drive to autozone, they will test it for free and even give you a print out!

nd4spd18 · 10-22-2009, 04:13 PM

Quote: Originally Posted by actafool4187

easier way. drive to autozone, they will test it for free and even give you a print out!

Not for OBD 1 they dont.

03-16-2007, 11:39 PM	#1
my85grandnational Registered User Join Date: Mar 2006 Posts: 34 Location: User is: OffLine	How to look up Service Engine Soon codes without scan tool I know there is a way to get your SES light to blink out the codes that are stored in your computer, but I cant remember what you have to do. I have a 93 4X4 Blazer with the z code engine that has the service engine soon light on, and I would like to know what it is without having to pay someone to pull the code off for me. Please if you know how to get the code off yourself let me know, and also a list of what codes go with # of blinks of SES light. Thanks Dusty
	[Reply w/Quote]

03-17-2007, 01:08 AM	#2
nd4spd18 I am sofa king we tod did Age: 22 Join Date: Jan 2007 Posts: 416 Location: PA User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool Jump terminal A to terminal B on the ALDL connector under the drivers side dash, then turn the ignition to on (not start). The SES light will flash out the codes. Also, you can jump terminal A to terminal H to read ABS system codes.
	[Reply w/Quote]

03-17-2007, 03:11 AM	#3
my85grandnational Registered User Join Date: Mar 2006 Posts: 34 Location: User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool Thanks I figured out how to read the SES light codes, but my ABS light is always on, so how do I read its codes? Does it flash just like the SES light will? If so what flashes mean what codes?
	[Reply w/Quote]

04-14-2007, 11:22 PM	#4
nd4spd18 I am sofa king we tod did Age: 22 Join Date: Jan 2007 Posts: 416 Location: PA User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool Yep, when you jump terminal A to H the ABS light will flash out the codes. At least that's how it works with the 4 wheel ABS system. You can also jump terminal A to F if you have electronic 4WD, and the 4 high and 4 low indicator lights will flash out transfer case control module codes.
	[Reply w/Quote]

02-17-2008, 01:06 PM	#5
TCossuto Registered User Join Date: Aug 2007 Posts: 752 Location: User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool Anyone have a list of codes handy?
	[Reply w/Quote]

07-12-2008, 08:59 PM	#6
tuknduces Registered User Age: 31 Join Date: Jul 2008 Posts: 4 Location: Alliance, OH User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool You should be able to go to your local part store and they can read it for free.
	[Reply w/Quote]

10-28-2008, 12:32 PM	#7
Woogi Registered User Age: 24 Join Date: Oct 2007 Posts: 49 Location: User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool will this jupmer config work with my 92 W code vortec jimmy? My ABS light is on and I would like to read it myself if I can
	[Reply w/Quote]

10-28-2008, 12:56 PM	#8
geneticrider13 real names Chris Join Date: Jul 2006 Posts: 801 Location: Allentown, PA User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool does this work on any s series truck? i have a 03 s10 2wd 4cyl h code
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10-29-2008, 02:03 AM	#9
nd4spd18 I am sofa king we tod did Age: 22 Join Date: Jan 2007 Posts: 416 Location: PA User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool Quote: Originally Posted by Woogi will this jupmer config work with my 92 W code vortec jimmy? My ABS light is on and I would like to read it myself if I can Yes
	[Reply w/Quote]

10-29-2008, 02:05 AM	#10
nd4spd18 I am sofa king we tod did Age: 22 Join Date: Jan 2007 Posts: 416 Location: PA User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool Quote: Originally Posted by geneticrider13 does this work on any s series truck? i have a 03 s10 2wd 4cyl h code This connector is only on first gens..... second gens have an OBD-II connector which you need a scanner to read. Most autoparts stores have one they let you use for free that reads OBD-II.
	[Reply w/Quote]

12-28-2008, 12:45 PM	#11
D.T. Captain DIY Age: 41 Join Date: Dec 2008 Posts: 119 Location: Moneyapolis, MN User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool How do you read the "blinking?" I bought a black market reader on Ebay, but I didn't know about jumping the OBD connector.
	[Reply w/Quote]

01-01-2009, 12:09 AM	#12
Freek Shred The Shit Age: 17 Join Date: Feb 2008 Posts: 663 Location: Indianapolis, IN User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool I'm doing this tomorrow hopefully. It will flash the codes? The SES light will blink or something?
	[Reply w/Quote]

01-01-2009, 02:03 AM	#13
ExtCab96S_Dime Wannabe Dragger Age: 22 Join Date: Jun 2005 Posts: 1,664 Location: Neenah, Wisconsin User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool Quote: Originally Posted by nd4spd18 This connector is only on first gens..... second gens have an OBD-II connector which you need a scanner to read. Most autoparts stores have one they let you use for free that reads OBD-II. You sure that the 94's have OBD-II? I think they may have been OBD-I still, not that it actually matters for this discussion. Quote: Originally Posted by Freek I'm doing this tomorrow hopefully. It will flash the codes? The SES light will blink or something? Quote: Originally Posted by D.T. How do you read the "blinking?" I bought a black market reader on Ebay, but I didn't know about jumping the OBD connector. After you jumper the two pins and turn it to the run position, the SES light will flash. Say you have a code 45, for example, the light will flash four times, then pause then flash five times. After each code it will pause for a long period of time. That help any? Edit: Here, in case I didn't explain it well enough, here is a link with a description. Also for anyone looking for the actual codes, they are on this same link http://www.freeautomechanic.com/diag...blecodes5.html Last edited by ExtCab96S_Dime : 01-01-2009 at 02:05 AM.
	[Reply w/Quote]

10-22-2009, 05:19 AM	#14
MrGoodwrenchGM Registered User Join Date: Oct 2007 Posts: 29 Location: User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool One very easy way to check and diagnose engine codes w/o reader: Bend yourself a paper clip into a u shape, and insert into terminal A and B or the two upper right terminals on your OBD1. (Goin' MacGyver ) For code readings, check your Haynes Repair Manual if you have one handy, or go to a local parts store and take a gander at one if they'll let you.
	[Reply w/Quote]

10-22-2009, 05:31 AM	#15
actafool4187 '02 Sonoma X-Cab Age: 22 Join Date: Mar 2008 Posts: 3,165 Location: Northwest Indiana User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool easier way. drive to autozone, they will test it for free and even give you a print out!
	[Reply w/Quote]

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10-22-2009, 04:13 PM	#16
nd4spd18 I am sofa king we tod did Age: 22 Join Date: Jan 2007 Posts: 416 Location: PA User is: OffLine	Re: How to look up Service Engine Soon codes without scan tool Quote: Originally Posted by actafool4187 easier way. drive to autozone, they will test it for free and even give you a print out! Not for OBD 1 they dont.
	[Reply w/Quote]