This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
reversepowered2g [2009/08/03 15:55] twdorris |
reversepowered2g [2009/08/03 15:57] twdorris |
||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== Reverse Powered 2G ECU ====== | + | ====== Reverse-Powered 2G ECU ====== |
- | A reversed powered 2G DSM ECU is probably blown. This can happen when you try to jump start the car while having the positive and negative cables reversed, for example. This will almost always leave the ECU in a non-functional state. And, unfortunately, this often means the ECU is not reasonably repairable. | + | Reverse powering a 2G DSM ECU is bad a thing. This can happen when you try to jump start the car while having the positive and negative cables reversed, for example. This will almost always leave the ECU in a non-functional state. And, unfortunately, this often means the ECU is not reasonably repairable. |
A quick check to see if the ECU might be repairable or not is to open the ECU case and check diode D103. A picture of this diode is below for illustration. | A quick check to see if the ECU might be repairable or not is to open the ECU case and check diode D103. A picture of this diode is below for illustration. |