Join Date: Dec 2000
Location: HARRISON, AR, USA
I bought a code reader for 20 dollars and realized I got ripped off but you don't have to get ripped off like I did. I found out about this after I bought the code reader. If your car has the 12 pin DLC connector,you most likely can manually flash your trouble codes.
| 1 2 3 4 5 6 |
| 7 8 9 10 11 12 |
To disply codes run a wire or hairpin from Pin 6 to Pin 12 with the ignition off (although on later cars it should be from Pin 5 to Pin 6), then turning the ignition to the on position without starting the engine will flash the service engine soon light in the following sequence: flash, pause, flash-flash, long pause flash, pause, flash-flash, long pause flash, pause, flash-flash, long pause Following this 12 code repeating three times will come any trouble codes stored, flashing each of them three times. If you do not see the 12 flash three times, your diagnostic circuit is defective.
Some vehicles will display stored trouble codes, then 12 again, followed by energizing "most system controlled relays." The fuel pump relay will not energize. The idle air control valve will fully extend to enable checking minimum idle speed.
CLEARING THE TROUBLE CODES
Turn the keyswitch to the off position. To clear any trouble codes, disconnect the power feed for 30 seconds. If this is done at the battery, and your car stereo is equipped and programmed with a four digit pin code, you may have to re-enter that as well to use your stereo again. A better place to remove power is at the fuse.
[This message has been edited by SPEEDLVR (edited 02-10-2001).]