2000 GMC Sierra ECM 2 fuse

Tiny
KGAMBLE2415
  • MEMBER
  • 2000 GMC SIERRA
2000 GMC Sierra

What does this fuse go to? Why does it blow continuously?
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Sunday, December 14th, 2008 AT 11:22 PM

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Tiny
BLUELIGHTNIN6
  • EXPERT
Your ECM or Electronic Controle Module is vital for your vehicle's engine to receive spark. I suggest checking the grounds on the ECM. If these are good, run a test light across the fuse terminals and wiggle the wires in that circut. Iit lightsup bright that means youave a chaffed wire thats groundin intermintantly.
Also check for voltage at plug wires. If one is lower than it should be, suspect faulty ignition coil.
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Sunday, December 14th, 2008 AT 11:41 PM

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