[Dreezyjuice08]

Hello all! Im hoping someone could point me in the right direction regarding my issue.

My car developed a long crank no start issue. I Have tried to connect foxwell, carly, mhd, and INPA to the DME, but all of them fail to connect, so I can't even retrieve codes beyond that.
foxwell was able to read cas errors, (AOB1 AOB2 AOB6 A0B5 A0B4 A0B6)

on the IDRIVE the errors are (ABS, DSC MALFUNCTION, and Fuel pump light
CEL, ABS, low brake fluid, fuel pump inop, transmission Malfunction, TPM sensor resetting, AND service assistance off. )

The guy who upgraded my DME in the past pointed out the pins to test if there was power in the DME. we confirmed it was getting power. I then tried the old DME that i saved and tried to start the car and still get the same errors. My water pump also stays on when the ignition is on, which drains my battery very fast. I have a multimeter but also a novice at checking for wires. could someone point out some wires i could check, or what my best or easiest option would be to fixing all of this? the fuses are also okay.

[gbalthrop]

Originally Posted by Dreezyjuice08

...My car developed a long crank no start issue. I Have tried to connect foxwell, carly, mhd, and INPA to the DME, but all of them fail to connect, so I can't even retrieve codes beyond that.
foxwell was able to read cas errors, (AOB1 AOB2 AOB6 A0B5 A0B4 A0B6)

on the IDRIVE the errors are (ABS, DSC MALFUNCTION, and Fuel pump light
CEL, ABS, low brake fluid, fuel pump inop, transmission Malfunction, TPM sensor resetting, AND service assistance off. )...The guy who upgraded my DME in the past pointed out the pins to test if there was power in the DME. we confirmed it was getting power...My water pump also stays on when the ignition is on, which drains my battery very fast. I have a multimeter but also a novice at checking for wires.

Other than that, how's your 2007 335i E92 doing?
What work was done to the car between the last time a scan tool could connect to your DME, and now (or first time tool would NOT connect with DME)?
BTW, do you mean that your Coolant Pump is ALWAYS running, even 5 minutes or more after the ignition is OFF or with a cold engine, ignition OFF?

If you know how to use a DMM (Digital Multimeter) to read voltage (Red probe on power source and Black probe on good chassis ground), you can check out a few possible problems that prevent scan tool connection to the DME. I would start with power at the OBD II socket, which is X19527 in the following TIS Circuit diagram:
https://www.newtis.info/tisv2/a/en/e92-335i-cou/kISM68N

Note that the diagram is "interactive" -- clicking on X19527 allows you to select the following "Connector View" which shows you what the OBD II connector looks like and the orientation/ numbering of the 16 pins:
https://www.newtis.info/tisv2/a/en/e...i-cou/CTJoYvuJ

If you look VERY closely, you will see tiny numbers on the outboard edges of each socket in the diagram. The socket is installed in the car with the pin rows vertical, or rotated 90 degrees Clockwise from the position shown in the diagram. As installed in the car, Pin #1 is at the Bottom of the Outboard column, and Pin #16 is at the Top of the Inboard column of 8 sockets.

TEST 1, Test for Voltage at sockets #1 & #16:
a) You should have 12V+ at Pin #16, Red/Yellow wire, at top of inboard column, at ALL times (ignition off). If NOT, then likely fuse F2 (5A) is blown or you have a wiring fault between fuse & socket.
b) You should have 12V+ at Pin #1, Green/Brown wire, at bottom of outboard column, WITH IGNITION ON.

Check that out, and let us know what you find, and we'll go to next step.

George