Question about GMC Sierra 1500
DLC connector doesnt work when i plug scanner into it
Posted on Oct 12, 2009
CHECK YOUR SCANNER 9 VOLT BATTERY ON THE SIDE.YOU NEED 9 VOLT BATTERY TO POWER IT UP.BEFORE HOOK TO THE DLC.
Posted on Aug 02, 2009
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Posted on Jan 02, 2017
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Oct 02, 2014 | 2003 GMC Envoy Xl
When the service engine soon light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.
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