2003 Toyota Corolla

Tiny
KANDARPPATEL
  • MEMBER
  • 2003 TOYOTA COROLLA
2003 Toyota Corolla

AFTER REPLACING ECU MY CAR IS NOT STARTING UP, WHAT IS THE REASON BEHIND THAT. AND THERE IS NO CHECK LIGHT INDICATING.
Thursday, November 20th, 2008 AT 2:09 AM

1 Reply

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Newer model vehicles such as yours now have "chips" embedded in the black portion of the key. This "chip" sends signals to your vehicles ECU as part of its anti-theft operations. If you replaced your ECU, you will also have to replace your key to have the "chip" coded to the ECU you now have.
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Thursday, November 20th, 2008 AT 2:16 AM

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