Unplugging from power is the only way.
You can fix the problem on your own with the help of service and repair manual with diagram and you will get the manual from the given link https://toolsnyou.com
Unhook the cars battery. Let it sit for 15 minutes unhooked. You can remove the positive or negative battery cable.
SOURCE: Need an ecu wiring diagram
what is the car doing?? by you saing "need a ECM diagram?" what is the problem with the car. that car is pretty bulletproof and I have't seen any ECM issues unless your A/C drain is clogged up and water leaked onto/into your ECM frying it up. Let me know what your symptoms are.
SOURCE: how do i reset the odometer on the 2007 nissan altima
PUSH AND HOLD BUTTON IN SPEEDO CLUSTER. FIRST SET TE SPEEDO TO READ ODOMETER THEN PRES AND HOLD BUTTON.
SOURCE: 1995 Nissan Altima starts rough, will not idle, shuts off
code 55 generally means no stored faults on nissan ecu's
SOURCE: need to reset the ecu on a 91 nissan sentra
you can remove the ecu fuse or disconnest the battery for about 20 sec.if you start it after and the light is still on thats because your ecu has a hard vode that will come back untill correct repairs are made,have a good day DB
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Usually answered in minutes!
disconnect both battery power cables , connect them together and use a jump wire to ground them ( they must ground up to drain the ECU micro capacitors and become data free ECU ) , 15 minutes later , connect battery power cables to battery, start the car and let it Idle for 5 minutes , then drive it normally for at least 10 minutes, this will allow the ECU to relearn your entire car operations.
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