No crank, no start, no click

WILB43

MEMBER
2003 BMW 325I
2.5L
6 CYL
2WD
AUTOMATIC
181 MILES

Put a new battery in went to start the car and nothing; No nothing, no crank, no start, no click. OBD scanner reads 80 Transmission partial. Been doing a lot of searching and reading forums read things about the EWS and DME don’t know much about that I put in a new fuel pump relay which I read can cause a no crank, no start. I even put new battery in key forbs still nothing?

Monday, October 26th, 2020 AT 3:40 PM

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

If this started after a battery replacement I suspect we have an antitheft issue.

Is the LED indicator on the mirror on or flashing? If it is, lets use the key fob to lock the doors and then unlock them and see if that LED goes off.

If not, try letting the key sit in the ignition for 30 minutes in the on position and see if the system will disarm.

If that is not on or flashing, we need to go to the starter and check for power at both wires when cranking the engine. I included the wiring diagram and I suspect we don't have any on the yellow wire but we need to confirm that.

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