I had the same problem and found that mine was using a six prong plug located in the engine compartment near the battery. It is called a Duty Check Data Link Connector (DC-DLC) and the wires are: 1 2 3 4 5 6 1 - Has no wire 2 - Diagnostice Request Terminal, Blue with Yellow stripe 3 - Diagnostic Output Terminal, Purple with Yellow stripe 4 - Ground Terminal, Black 5 - Test Switch terminal, Blue with Red stripe 6 - Duty check terminal, Purple I jumped terminal 2 with terminal 4 and got my codes, I have some pics at: http://home.stx.rr.com/hesszoo/tracker/ The plug listed as 4 is the one your looking for.
With a scan tool, or try turning key on, off, on, off, on and counting the blinks of the check engine light. blink, blink, blink, pause, blink would be 31.
A flashing check engine light is usually an indication of a misfire.
On some if you turn key on, off, on, off, on. The check engine light may start to flash the code. blink, blink, bink, pause blink would be 31.
Probably because you need to check the engine.
A flashing engine light is usually a misfire.
If the check engine light is blinking , an engine cylinder misfire has been detected
An engine misfire has been detected
Check to see if your gas cap is tight.
with a rev counter
It is indicating that there is a fault with the engine of the car. You need to take it to a garage for repair/service.
first you nee to check and see if your car is referred to as OBDI or OBDII if its ODBI then you start with the car off.. turn the key to run but do not start the engine.. at this point you have less that 5 seconds to push the gas pedall all the way to the floor and press the overdrive button five times... then the check engine light will stay on.. and then blink... next its going to blink out the code for you for ex. blink-pause-blink blink-pause blink blink blink-pause blink n that would mean the problem code is 1231 just Google BMW problem codes and use that dcode to find out what the issue is..
If your check engine light is blinking , that means a cylinder misfire has been detected