- Remove the kick panel on the passenger side below the glove box.
- Grab a paper clip and bridge out the 'white' and 'black wire on the ALDL (Assembly Line Diagnostic Link) which can be found generally on the right hand side of the ECM (Electronic Control Module)or hanging down below it.
- Jump into the drivers seat and turn the key twice (so lights are up on the instrument cluster).
- If you bridged out the correct wires you will hear the electronic fan cut in and the 'Check Engine Lamp' will be flashing.
- The flashes are divided into 2 groups with roughly a second between each. You can read the flashes as follows:
The first series of flashes is tens, so for example lets say the first flash simply flashes once, this means the code is 10. After the pause (~1 second) a second series of flashes will appear, if this number is 2, the code it is spitting out is 12 which means everything is fine.
- Another example just so your sure
The first series of flashes you count is 4 meaning 40, the second series of flashes is 3. Adding the 40 and the 3 will give you a code of 43 which means the Knock sensor circuit is experiencing problems.
- Each code the computer picks up is repeated three times with ~3 second pause between, so its wise to sit there to make sure there isn't any problems it has picked up.
- Once you are finished turn off your ignition, remove the paper and replace the kick panel. It is important to note not to drive the car around while have wires are bridged as this will prevent new codes from being logged.
Any questions or queries please feel to contact me at anytime.
Checking the computer for codes is used in conjunction with the computer Fault Codes located here