To access trouble codes on a 2002 Cadillac STS without an OBD-II tool, you can use the key-on, engine-off method. Turn the ignition key to the "On" position without starting the engine, then quickly turn it off and back to "On" three times in succession. The dashboard warning lights will flash, and the codes will be displayed in a sequence on the dashboard. Note that this method may not work for all issues and is less reliable than using an OBD-II scanner.
With a scan tool.With a scan tool.
Plug in a scan tool.
With an obd 2 scan tool
No. I don't know the Taurus, specifically, but the OBD II standard does not provide non-computer access to codes, such as with the older GM CCC system using a jumper.
no
You can't.
No.
Not without a specialized scan tool.
All 1995 and later model vehicles require an OBDII scanner tool to retrieve the trouble codes.
Turn the ignition key on, off, on, off, on and it may show the codes in the odometer. Otherwise you will need access to a scan tool.Turn the ignition key on, off, on, off, on and it may show the codes in the odometer. Otherwise you will need access to a scan tool.
You will need an OBDII scanner tool to check the codes. If you don't access to a scanner tool, AutoZone and similar auto parts stores offer a free scan.
You need an OBDII scanner tool to retrieve the trouble codes. AutoZone and similar auto parts stores offer free scans.