Most vehicle computers can be reflashed or reprogramed after 1996. Normally this is done by the dealer. The reflash usually "fixes" software type bugs that affect the vehicles performance ie. better transmission shifting, incorrect calibrations, check engine light problems, etc... The tech involved in the reflash has no control or imput in the actual program or download, ie cannot manipulate or change settings. The tech simply facilitates the download just like updating software on your desktop. The only "do it yourself" involves buying an aftermarket SAE J2534 reprogrammer and buying a subscription at the dealer's website. The tool is readily available and used in conjunction with a laptop. The SAE J2534 is the governments specs for the tool, and assurance of the tools compliance. Subscription prices vary by manufacturer. It is very impracticle for an inexperienced user. There are alot of performance "reflash" tools that you can buy especially for trucks. These are NOT the same as the J2534. These are generally not endorsed by the manufacturer, and do not utilize the manufacturer's updates. They simply "overwrite" the current calibration of the vehicles pcm with a performance calibration which may or may not pass emissions. Some will "save" the factory calibration so that you can return to what you started with. Some will also allow you to clear codes and check data. Results are mixed and difficult to prove.
You would have to send the pcm out for a reflash at "intense racing". They also do other upgrades to the pcm will reflashing
What do you mean... reflash? Trying to get comp codes? Trying to clear all comp codes?
on the 01 and pretty much all newer vehicles the governer is computer controlled. it cannot be bypassed unless you reflash your pcm, and even then it all depends on the gearing of the vehicle, i have a 01 dak. sport. I gear out at 104
one can reflash the ecu themself. just need to know the pedal combinations. you can find this info on the Jim wolf technology website
I had this same problem and it had nothing to do with the fan but the transmission. The dealership did some computer upgrade and fixed the problem The older model years should have had a PCM re-flash from the dealer. If this problem re-occurs after the fan-clutch is replaced then a reflash is needed. There are many cases where the reflash is the only correstion needed and the dealer is the only place it can be done unless you know a PCM tuner shop.
You will need to reflash the bios
A code P0601 in most cases means the PCM has gone bad. This is possibly due to a short-circuit inside the PCM. Or, if you disconnect the wires/connector from the PCM while the battery is still connected, that may also cause this code. With a P0601 OBD-II trouble code, the most common fix is to replace and reprogram the PCM. In a few cases the dealer may be able to reflash the PCM and get it working. But more than likely the PCM will need to be replaced and reprogrammed (we recommend you take it to a dealership for this). The good news is it *may* be covered under your emmissions warranty. So even if you're out of bumper-to-bumper warranty or powertrain warranty, check your warranty guide or dealer to see if this is covered. Other people have reported that they cleared the code only for it to return again and again. Keep in mind that most shops can replace the PCM but not all can program it.
Either replace the ECM or reflash it with new parameters.
THE PCM IS ON THE PSSENGER FIREWALL THE PCM IS ON THE PSSENGER FIREWALL
no, only years before 05
The PCM will not affect the transmission in your car. The PCM is not related to the transmission in any way.
Powertrain Control Module ( PCM )