How do I reset the ecm on a 2000 deville base?
140

Asked by Steven Feb 27, 2017 at 08:01 AM about the 2000 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

Car codes are P0741, car battery drains. Service engine light comes on. Also
the code U1000 comes. Can you reset the ecm? It's a 2000 deville base.

2 Answers
220,915

Rowefast answered 7 years ago

P0741 CADILLAC - Torque Converter Clutch Circuit Performance or Stuck Off...Possible causes; Low transmission fluid level, Dirty transmission fluid, Faulty torque converter clutch solenoid valve, Torque converter clutch solenoid valve harness or connectors, Torque converter clutch solenoid valve circuit is open or shorted, Transmission internal mechanical problem......Watch this video.....https://youtu.be/xx65s-LvC5g

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220,915

Rowefast answered 7 years ago

U1000 CADILLAC - Invalid or Missing Data for Primary Id... As with all loss of communication concerns, inspect the power, ground, and serial data circuits to the suspect module prior to replacing any parts...U10000 is set when the control module does not receive a message that it was expecting from another control module, and does not know which control module did not send that message.

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