Went to dealer had my 1998.5 Dodge Cummins auto transmission flashed for 3 cylinder idle. Doesn’t work. Plugged in diagnostic tester. Air temp 10f, coolant 10f, speed 0, TPS 0%. Only other things to check is to ensure pickup is in park or neutral and brake is not on. It’s in park and the brake light aren’t on. Anything to check with parking or brake? Is there anything else I can check? Also tried with parking brake on.
Also did the APPS reset leaving batteries disconnected for an hour
Went to dealer had my 1998.5 Dodge Cummins auto transmission flashed for 3 cylinder idle. Doesn’t work. Plugged in diagnostic tester. Air temp 10f, coolant 10f, speed 0, TPS 0%. Only other things to check is to ensure pickup is in park or neutral and brake is not on. It’s in park and the brake light aren’t on. Anything to check with parking or brake? Is there anything else I can check? Also tried with parking brake on.
Also did the APPS reset leaving batteries disconnected for an hour