I have codes
Codes are:
P1600 PCM Battery/TCM Watchdog
P1601 Serial Comm. Problem with Device 1
P0485. Cooling fan power/ground
I have replaced the speedometer because the first one got water in it and fried. I’m guessing I need to flash the ecm because of new speedo, but any help on the other codes would be greatly appreciated.
Codes are:
P1600 PCM Battery/TCM Watchdog
P1601 Serial Comm. Problem with Device 1
P0485. Cooling fan power/ground
I have replaced the speedometer because the first one got water in it and fried. I’m guessing I need to flash the ecm because of new speedo, but any help on the other codes would be greatly appreciated.



