I can not locate a new obd port and studs is there a reason i have a 2011 chevy aveo 5 LT and it will not read for an emissions test help

tomas sidlauskas

• 95 Answers
• Posted on Jun 13, 2009

SOURCE: OBD II Connector identify and location?

2004 Chevy Aveo LS, the OBD-II connector is against the panel closest to the driver's knees above the brake pedal.

SOURCE: P0320 & P1391 OBD codes displayed.

P 0320 = No Crank Reference Signal to PCM. No Crank (shaft position) reference signal detected during engine cranking (starting).
P 1391 =Intermittent Loss of either Camshaft Position Sensor or Crankshaft Position Sensor.
Hav you attemtped the "3-Key-Ons" method to see these codes on your digital Odometer (assuming you have one) Turn the Key from Off to On (not start) three (3) times. On the third (3rd) time leave the Key in the "On" position (not start). Look at your Dogotal Odometer (if so equipped). The Codes, one at a time should appear. The Last Code will be "P donE".
If te engine is performing without problems: disconnect the negative side of the Battery and wait at least 5 to 30 minutes. Reconnect the Battery. Re-preform the 3-Key-On's and see if and Codes are now showing.
If you start having Start or Running problems becoming more and more frequent: consider replacing the Crankshaft Position Sensor. If this sensor "fails" you may not get any fire to anything, as this is the signal that is necessary for the PCM to initiate the Firing Sequence. The PCM will not send a signal to even the Ignition Coil to begin.

Harvey N Tawatao

• 3854 Answers
• Posted on Mar 02, 2010

SOURCE: Did not pass state inspection (vehicle)

First the fault codes,
U110C is No Fuel Level Bus Message
U0155 is No Cluster Bus Message.
Unfortunatly you have to be able to communicate with the instrument cluster with your scanner to diagnoise and I do not think an aftermarket scanner can do this.

SOURCE: where is the obd ii port on a 2011 chevrolet

Should be under the dash,drivers side,about 1.5 inches wide
2 rows of connect pin holes, shaped
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SOURCE: location of OBD-ll on 2011 Lexus is250

US law dictates that the ODB port be located within easy reach of the driver. It is most likely just under the dash at the very end of the dash board. There will not be any panel or cover for this port. It will be easily found if you look under the dash.