Service Engine Light
Thread Starter
Drifting
Joined: Jan 2002
Posts: 1,550
Likes: 2
From: Woodbridge VA
Service Engine Light
Well I've had my 95 for two days now. I was at a stop light today and the service engine light came on. All the gauges were normal. As the light turned green and I started going the light went off and I did not see it again. Any ideas?? Also, how do I check the error codes? I looked through my manual and couldn’t find out how.
Advanced
Joined: Dec 2001
Posts: 83
Likes: 0
From: Syracuse NY
Re: Service Engine Light (95_C4_convertible)
I don't know all of the details, but on the older cars (I am not sure what year makes it older vs. newer) you could just connect two leads together under the dash and it would run you through the codes.
On the newer cars (your car is probably a newer one) I am not sure if this works.
I think you can get code readers from a lot of different places. I think I saw one in Harbor Freight for the newer systems for about $50. I think it is probably worth the money to get one if you can't just jumper two leads together.
Check out...
http://www.harborfreight.com/cpi/cta...emnumber=46030
Pin point problems the way factor mechanics do. Easy to use. Simply plug the reader into the vehicle's test connector and your car's on board computer will tell the code reader what ails it. Includes instruction manual. Fits 1996 and new vehicles with generic OBDII connector.
You see, I just learned something, the new ones are called OBDII. I think this works on GM, but I don't know for certain. It alos looks like 96 and newer have the OBDII, so you may be able to just jumper the two leads together on the connector under the steering wheel. If you have this one, let me know and I'll give you more detail.
On the newer cars (your car is probably a newer one) I am not sure if this works.
I think you can get code readers from a lot of different places. I think I saw one in Harbor Freight for the newer systems for about $50. I think it is probably worth the money to get one if you can't just jumper two leads together.
Check out...
http://www.harborfreight.com/cpi/cta...emnumber=46030
Pin point problems the way factor mechanics do. Easy to use. Simply plug the reader into the vehicle's test connector and your car's on board computer will tell the code reader what ails it. Includes instruction manual. Fits 1996 and new vehicles with generic OBDII connector.
You see, I just learned something, the new ones are called OBDII. I think this works on GM, but I don't know for certain. It alos looks like 96 and newer have the OBDII, so you may be able to just jumper the two leads together on the connector under the steering wheel. If you have this one, let me know and I'll give you more detail.
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Joined: Sep 1999
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From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
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Re: Service Engine Light (Crispyc21)
94 & 95 were the transition years from OBDI to OBDII.
1996 was full OBDII.
1996 was full OBDII.
Le Mans Master
Joined: Aug 1999
Posts: 7,339
Likes: 137
From: WilkesBarre PA
Re: Service Engine Light (Mr Mojo)
A 95 can still be read with the paper clip method. You read the codes on the spedo display, and scroll through the codes with the buttons for the engine info.
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
Re: Service Engine Light (RichS)
A 95 can still be read with the paper clip method. You read the codes on the spedo display, and scroll through the codes with the buttons for the engine info.
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Michael S. Palmer
Race Director
Joined: Jan 2002
Posts: 12,264
Likes: 88
From: O'Fallon Missouri
Re: Service Engine Light (95_C4_convertible)
I have a '95 and would like to know more about how to do this. Which leads do you connect together with the two ends of the paper clip?
Advanced
Joined: Dec 2001
Posts: 83
Likes: 0
From: Syracuse NY
Re: Service Engine Light (STL94LT1)
I'll take STL's word for it that those are the right terminals. I can't remember the letters, I just know where they are.
Here is how I REMEMBER the procedure:
With the car off (no key), connect the A and H terminals together by sticking something in both of them, like a paperclip.
Some stuff should go on and you will see the service (or check) engine light start to flash. It repeats each code three times and always starts and finishes with code twelve. Code twelve looks like this:
Flash Flash-Flash - Flash Flash-Flash - Flash Flash-Flash
(1 2) (1 2) (1 2)
Get it?
Then it will flash all codes that it currently has in the system. Say you have a code 34 and 42 (if there is one), your system would do this (Fl = 1 flash):
Fl FlFl - Fl FlFl - Fl FlFl - FlFlFl FlFlFlFl - FlFlFl FlFlFlFl - FlFlFl FlFlFlFl - FlFlFlFl FlFl - FlFlFlFl FlFl - FlFlFlFl FlFl - Fl FlFl - Fl FlFl - Fl FlFl
(That's 12 12 12 34 34 34 42 42 42 12 12 12)
If you keep those terminals connected, it will just keep repeating the above.
I hope this helps,
Jim
Here is how I REMEMBER the procedure:
With the car off (no key), connect the A and H terminals together by sticking something in both of them, like a paperclip.
Some stuff should go on and you will see the service (or check) engine light start to flash. It repeats each code three times and always starts and finishes with code twelve. Code twelve looks like this:
Flash Flash-Flash - Flash Flash-Flash - Flash Flash-Flash
(1 2) (1 2) (1 2)
Get it?
Then it will flash all codes that it currently has in the system. Say you have a code 34 and 42 (if there is one), your system would do this (Fl = 1 flash):
Fl FlFl - Fl FlFl - Fl FlFl - FlFlFl FlFlFlFl - FlFlFl FlFlFlFl - FlFlFl FlFlFlFl - FlFlFlFl FlFl - FlFlFlFl FlFl - FlFlFlFl FlFl - Fl FlFl - Fl FlFl - Fl FlFl
(That's 12 12 12 34 34 34 42 42 42 12 12 12)
If you keep those terminals connected, it will just keep repeating the above.
I hope this helps,
Jim