P1174 indicates fuel trim cylinder balance malfunction. This means that your cylinder-to-cylinder air to fuel ratio is not balanced properly. Usually caused by a faulty heated oxygen sensor located on the exhaust or a simple vacuum leak. It will not harm your vehicle but it will lower your fuel mileage and the engine light will remain on until the issue is fixed, which will fail an emissions test for some states. This may be repaired free under your emissions warranty. Check with your dealer.
Diagnostic trouble code
DTC- Diagnostic Trouble Code.
You can run a diagnostic test for the knock sensor, on your 2005 Chevy avalanche, by hooking the engine up to a diagnostic tester.
It is under the edge of the drivers side dash.
You will need a diagnostic scanner to retrieve the codes.
Trouble code P0301 means:Cylinder 1 misfire detected
Trouble code P0441 means:Evaporative emission control system incorrect purge flow
Trouble code P0404 means:Exhaust gas recirculation circuit range/performance
Trouble code P0522 means: Engine Oil Pressure Sensor/Switch Circuit Low Input
Trouble code P0700 means:Transmission control system malfunction
Mine was a disconnected cable to the charcoal filter near the gas tank.
It sure could. If you KNOW how to use it and READ it.