2003 Hummer H2 Check Engine Light On 03 H2 Hook Obd2 Scanner Doesn T Read

2003 HUMMER H2

ANONYMOUS

MEMBER
1 POST

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?

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Dec 14, 2012 at 12:58 AM

SATURNTECH9

✓ASE Certified Mechanic
30,869 POSTS

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.

Dec 14, 2012 at 1:02 AM

HUZEFAUKANI

MEMBER
1 POST

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

Dec 14, 2012 at 1:23 AM

JACOBANDNICKOLAS

✓ASE Certified Mechanic
110,194 POSTS

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.

Dec 14, 2012 at 1:49 AM

SATURNTECH9

✓ASE Certified Mechanic
30,869 POSTS

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?

Dec 15, 2012 at 6:23 AM

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