Etc failsafe has me stumped 2005 LS 3.9

donfrans87

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Coffeyville KS
Just replaced all coils, plugs, tps, maf, throttle body, dccv, fuel pump. Car has 106k on it and and went into ect failsafe once about a year ago and was able to disconnect the battery and it all was well until about a week ago. The car has a sunroof leak on passenger side and the only code showing is one for small evap leak. When in failsafe mode forscan and other scanners won't communicate. After a while of turning it on and off it will come out of failsafe and start then scanner will connect. When in failsafe electric fan is running wide open, red light on the dash blinking, dash will have message about shifter and traction control, abs. When failsafe is off so is fan and other warnings ... Is my ecm gone bad... Any helpful information will be greatly appreciated as this is my daily. Thanks for y'all's time.

Don
 

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