Why is the OBD connector on my Silverado not working?
Checked the volts on the cigar lighter – nada. Popped the fuse out – blown. New fuse, all works – except for the Dang fuel gauge issue. For anyone that wants to know, I plowed back into my Service DVD, and finally discovered that they don’t refer to this as the OBD connector – they call it the ‘Data Link Connector’!
When did the OBD II data link connector come out?
The DLC or Data Link Connector is an OBD II, 16 pin, standard connector used in all automobiles manufactured since 1996. In today’s vehicles, it’s in constant communication with the CAN, or Computer Area Network.
What is the negative pin on an OBD2 connector?
This protocol uses Variable Pulse Width and is normally used by GM vehicles. This is the Bus negative pin of the protocol. It follows 2-wire CAN protocol at 1Mbps speed. This is the CAN high Pin It follows 2-wire CAN protocol at 1Mbps speed. This is the CAN low Pin What is an OBD-II Connector? OBD stands for Onboard Built-in Diagnosis.
Where are the OBD 2 connectors located in the car?
OBD II connectors are located in the passenger’s compartment close to the steering wheel for easy access from the driver’s side, passenger side, or from outside the vehicle. An OBD I connector may be located in other areas such as the engine compartment.
Why does OBD II on my Silverado not work?
I have two electrical problems – OBD II doesn’t work & a fuel gauge issue (front and rear tanks). Need OBD II to diagnose the fuel issue. 4 & 5 are gnd, 16 is power, 6&14 are high speed bus (CAN bus – Control Access Network?), 2 and/or 3 are low speed bus.
What kind of truck has no OBD plug?
Drives:2019 Sierra Denali 2500, 2014 Mercedes E550 Cab. I had to take my truck in for the state emission test and they told me there is no power to the OBD plug, is there a fuse somewhere I can check?
Where is the OBD port on a Silverado?
All OBD-II cars have a connector located in the passenger compartment easily accessible from the driver’s seat. You will most likely find the connector right below the steering column! The connector must be located within three feet of the driver and not require tools to be accessed. Check under dash and behind ashtrays.
Why is there no power to the OBD port?
Check the 15A “CIG” fuse under the hood, that is what powers the DLC, if that fuse is not blown then you have a very od problem, wiring problem maybe If I recall correctly you need to check fuse 41 under the hood. As stated earlier the accessory outlets are on a different circuit from the cig lighter which also powers your OBD port.