Mourad

Hi everyone,

I tried to jump start my 86 951 after it sat for about 3 months and I could not start it.
No cranking or turn over at all.

I read some posts and it seems pointing to the alarm that probably cut off some stages of the ignition... There are suggestions to bypass the alarm but I want make sure there are no other simpler methods to "reset" the alarm.

The alarm is operational as I can engage and disengage it with the additional key.

Any help / pointers will be appreciated!

Thanks a lot.

moalaska

are you sure terminal.connections good? Are you getting accessory power just no crank? Is there power at the starter? Check the Molex type connector by firewall for power when ignition turned to crank position that sends signal to starter if I remember correctly.

Mourad

Yes there is accessory power... all comes up but then no crank or turn over at all...

bw993

If your existing battery has shorted cells you will not be able to jump the battery, since all current will go straight to ground.

moalaska

Ok check voltage at battery. Check voltage at starter. Could be simple bad connection. Check the starter wire on firewall as mentioned see if it's sending voltage to starter when key turned to crank. If all check out then whack starter and solenoid couple times.

Auto_Werks 3.6

I'm pretty certain that the alarm system will allow the car to crank but not fire.... Someone could double check this for you.

moalaska

alarm signal cuts power to pin 86 of dme relay.