Check Engine On 1986 How Do I Get Code ??
Thread Starter
Burning Brakes
Joined: Aug 2001
Posts: 896
Likes: 1
From: Oro Valley AZ
Check Engine On 1986 How Do I Get Code ??
I have the check engine light coming on with my 1986 vert and I know there is a way to find the code reason, but I don't remember how. Any help would be appreciated. I have a feeling it has been on for some time as I pulled out the display with the display light in to replace a bulb and found the plug was not completely plugged into the info center. What is my next move ???
Team Owner
Joined: Jan 2003
Posts: 20,342
Likes: 264
From: Summerland B.C. Canada
I'll try and get this right this time 
Place a jumper wire between terminals "A" and "B" on the aldl connector. (located above drivers right knee)
Turn on ign.
The service light will flash 12 (1 flash pause 2 flash) three times then it will flash the code number. Lets say 34= three quick flashes, pause, then 4 quick flashes. The code will be followed by the 12 three more times.
Let me know the code and i'll post the GM diagnostics for it
Place a jumper wire between terminals "A" and "B" on the aldl connector. (located above drivers right knee)
Turn on ign.
The service light will flash 12 (1 flash pause 2 flash) three times then it will flash the code number. Lets say 34= three quick flashes, pause, then 4 quick flashes. The code will be followed by the 12 three more times.
Let me know the code and i'll post the GM diagnostics for it
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 34
From: The Top of Utah
Missed it by THIS much!
After it flashes the "12" three times, it will flash the next code, in the example, "34" three times also. It will then go onto to flash the second code, if any, three times. There is no limit as to how many code can be displayed, each three times, between the '12's". Once the "12's" start again, you know you have seen all the codes.
Keep in mind, that just because a code came from a certain device, doesn't mean the the device is bad. Don't shoot the messenger. You need a factory service manual to tell you how to decipher the codes and to properly trouble shoot the problem. Manuals are available direct from the printer, at www.helminc.com, the for sale section, and on eBay. Without proper trouble shooting, you are likely to end up just throwing money at the problem.
RACE ON!!
After it flashes the "12" three times, it will flash the next code, in the example, "34" three times also. It will then go onto to flash the second code, if any, three times. There is no limit as to how many code can be displayed, each three times, between the '12's". Once the "12's" start again, you know you have seen all the codes.
Keep in mind, that just because a code came from a certain device, doesn't mean the the device is bad. Don't shoot the messenger. You need a factory service manual to tell you how to decipher the codes and to properly trouble shoot the problem. Manuals are available direct from the printer, at www.helminc.com, the for sale section, and on eBay. Without proper trouble shooting, you are likely to end up just throwing money at the problem.
RACE ON!!
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 34
From: The Top of Utah
Missed it by THIS much!
After it flashes the "12" three times, it will flash the next code, in the example, "34" three times also. It will then go onto to flash the second code, if any, three times. There is no limit as to how many codes can be displayed, each three times, between the '12's". Once the "12's" start again, you know you have seen all the codes. The amendment is that each code also flashes three times, and there are no "12's" between codes. Like I said THIS much.
Keep in mind, that just because a code came from a certain device, doesn't mean the the device is bad. Don't shoot the messenger. You need a factory service manual to tell you how to decipher the codes and to properly trouble shoot the problem. Manuals are available direct from the printer, at www.helminc.com, the for sale section, and on eBay. Without proper trouble shooting, you are likely to end up just throwing money at the problem.
RACE ON!!!
After it flashes the "12" three times, it will flash the next code, in the example, "34" three times also. It will then go onto to flash the second code, if any, three times. There is no limit as to how many codes can be displayed, each three times, between the '12's". Once the "12's" start again, you know you have seen all the codes. The amendment is that each code also flashes three times, and there are no "12's" between codes. Like I said THIS much.
Keep in mind, that just because a code came from a certain device, doesn't mean the the device is bad. Don't shoot the messenger. You need a factory service manual to tell you how to decipher the codes and to properly trouble shoot the problem. Manuals are available direct from the printer, at www.helminc.com, the for sale section, and on eBay. Without proper trouble shooting, you are likely to end up just throwing money at the problem.
RACE ON!!!
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 34
From: The Top of Utah
Indeed.
I hope you didn't mind my taking advantage of your "Get Smart" routine. All you missed was the trouble code repeating 3 times. Otherwise, perfect. Mainly I wanted to play with the "missed it by THIS much" comment.
RACE ON!!!
I hope you didn't mind my taking advantage of your "Get Smart" routine. All you missed was the trouble code repeating 3 times. Otherwise, perfect. Mainly I wanted to play with the "missed it by THIS much" comment.
RACE ON!!!
