To retrieve current error code:
1. Around the tool box, there should be an open ended yellow wire.
2. Insert a jumper wire long enough to reach battery ground.
3. Turn on key.
4. Ground yellow jumper wire to battery negative.
5. FI light will blink.
6. Here is the tricky part. The error codes are two digits, eg. 21, 32, etc.
We will use 32 for an example. The FI light will blink the tens unit first and they will be longer blinks, then the units digit next and they will be shorter blinks. Now using the 32 as an example, it will be 3 longer blinks, rest and then 2 shorter blinks and then rest. If there is only one code stored, it will repeat over and over. If there is more than one code, they will follow the first one until all have been dumped.
For example, if you had a 32 AND a 12, it will start with the lowest numerical code first, so you would see long blink (1), rest, two short blinks (2) rest, three long blinks (3) and two short blinks (2). Then it will repeat.
When all of the codes have been retrieved, key off, remove jumper.
Post back with codes.