1989 535i No Crank, w/ Check Control
Hi all-
Hopefully I can get some ideas. This is an intermittant problem, and usually only after the car has been driven quite a bit, on a warm start attempt. She will go into a no crank condition- no click, nothing; I just sit there listening to the various relays popping and clicking in the car on position 3. After a while, the lovely CHECK CONTROL OWNERS MANUAL will start popping up. I fiddled with the LKM and CCM, to no avail. Once again, no crank at all- the starter is just not getting juice. After 2 hours, I went to Walmart to buy a tow cord, and upon my return, she started just fine. Any ideas? Help!
Chris
1989 535iA
It is the same range switch at the bottom of the ...
shift lever. First debug operation by testing voltage to ground at pin 11 of diagnostic connector.
If you have 12 volts there when turning ignition key to start position, then your Park/Neutral switch, and your starter relay are OK, so check starter connections, and starter it self.
If no 12 Vdc at pin 11, then check starter relay K1 (Right next to fuse F1). It should click in/out when operating transmission shift lever in/out of N or P wile ignition key is in Run position.
If no clicking and exchanging relay does not solve it, then you may start considering to dig in the Range switch and clean it. I'm sure I've seen in the internet a writing about that job, just can not remember where it was.
Javier