ECM codes: U0101, U0073 and U0100?

Tiny
JAKNIYAH
  • MEMBER
  • 2014 CHEVROLET MALIBU
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,032 MILES
Recently got my engine harness wires fixed, made sure the gounding was in good condition. Car is giving out codes: u0101, u0073 and u0100. Is it possible for the ecm to be bad, and giving out them codes? And if the ecm is bad, where can I get a new one reprogrammed at?
Thursday, December 18th, 2025 AT 1:28 PM

1 Reply

Tiny
JAKNIYAH
  • MEMBER
  • 36 POSTS
Also, will a no-good alternator have/send out the same codes: U0101, u0073 and u0100?
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Thursday, December 18th, 2025 AT 4:26 PM

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