there is no such thing ever, CKP it is hall sensor or mag sensor
yes the HALL uses 5vdc from the same named pin Of the PCM
but the PCM has regulator for that. (not a fuse ever 5V)
the PCM has 12V fuses sure. as do every computer in the car.
BCM and all.
yes all cars and all electronics, or electrics, all have fuse. of one form or another, even like door windows have CB circuit breakers.
cranks but will not start ,
has 50 causes./ SORRY !
a tech knows that and does check ALL FUSEs not just one ever.
what if a fuse blew and the CAN_bus network when dead.?
yes we check them all , for sure year 2000 up. for
SURE>
no start (CRANKS FAST)_ MACRO ANSWER.
- BAD ENGINE, TOP CAUSE CAM BELT SLIP/SNAP
- NO SPARK, (CMP/CKP, SPARK PARTS BAD OR ABOVE1
- BAD FUELING , NONE, TOO LITTLE OR TOO MUCH.
#1 HAS THE MOST CAUSE,. LOOK INSIDE ANY ENGINE SEE ALL THOSE HEAD VALVE PARTS TO FAIL? LOTS.
WE HAVE TESTS FOR EACH LINE ABOVE , NO EXECEPTIONS, USING TOOLS/METERS/SCOPSES/ AND SCAN TOOLS
IF WISE AND ALL FUSE ARE GOOD
WE SCAN THE PCM FIRST (OBD2 DLC PORT)
AND FOR SURE CRANKED FOR 5 SECONDS TO SEE IT FAIL.
WE HAVE NO X3 IN USA, SO CAN NOT WAX SMARTER
AND I HATE GERMAN SCHEMATICS, (LOVE ALL OTHERS)
THEY USE GERMAN ONLY CODES FOR PARTS. GEESH.
NO ASE OR SAE NAMES, In their german world.
we have X5 but online no schematics, gotta love BMW. (not me)
if engine is good, tested (compression)
we test spark next on all cylinders, if all are dead, sure CMP or cam belt. or CMP dead, (or)
if spark is bad on JUST
one cylinder a new COP coil.? boots bad?
if spark is good.we try test fuel (spray can, to air cleaner port filter out)
I spray 3 seconds, crank it and runs 3 seconds ,repeat 3 times;
if engine sounds great smile and say fueling bad.
check fuel pressure using gauge(shop) for spec pressure.
check voltage 12vd to pump cranking.
bingo
do not trust key on pump tests,
CRANK IT. (yes 2 persons)