I have a check engine light on in my 03 Hummer.

Tiny
ANONYMOUS
  • MEMBER
  • 2003 HUMMER H2
I have a check engine light on in my 03 hummer h2.
When I hook it up to the obd2 scanner it doesn't read it. Is there something wrong with the actual plug on the car?
Friday, December 14th, 2012 AT 12:58 AM

4 Replies

Tiny
SATURNTECH9
  • MEMBER
Does the scan tool power up off the connector?See if the orange wire to the connector if it doesnt it wont read the computer.
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Friday, December 14th, 2012 AT 1:02 AM
Tiny
HUZEFAUKANI
  • MEMBER
The scanner is battery powered. I also took it to AutoZone. They check for the check engine light. They told me this not reading the connection. So it's not a problem with the scanner. I don't know what is the problem
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Friday, December 14th, 2012 AT 1:23 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Try what saturntech9 suggested. Check to see if the orange wire is connected. If you are not getting a reading, chances are there is a wiring problem.
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Friday, December 14th, 2012 AT 1:49 AM
Tiny
SATURNTECH9
  • MEMBER
See if the orange wire to the connector has power?If it doesn't the scan tool wont read the computer. Let me know what you find?
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Saturday, December 15th, 2012 AT 6:23 AM

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