BMW 1999-2005 M3 Service Manual page 1249

On-Board Diagnostics
BMW P-code
code
131
132
133
135 MS 43
136 MS 43
140 P1475
140 MS 43
141 P1477
142 P1477
11 of 20
Fault type and Signal type and
function range
CAN time out (instr Input binary
2) stream bit data
(0-12V)
CAN time out (instr Input binary
3) stream bit data
(0-12V)
CAN time out Input binary
(ASC3) stream bit data
(0-12V)
Limp home DME internal
position adaptation values logical
necessary
Motor throttle valve DME internal
open / closing test values logical
failed
LDP reed-switch Input digital on/off
not closed (0-12V)
DMTL pump final Output digital
stage on/off (active low)
EVAP: reed switch Input digital on/off
not closed, doesn't (0-12V)
open or doesn't
close
EVAP: reed switch Input digital on/off
not closed, doesn't (0-12V)
open or doesn't
close
http://ebahn.bentleypublishers.com/BMW/3/E46/Repair%20Manuals/8...
Explanation
CAN message between
DME/EGS not received within
expected time.
CAN message between
DME/EGS not received within
expected time.
CAN message between
DME/EGS not received within
expected time.
Limp home position must be
in specified range. If range is
exceeded, a fault is set.
From limp home mode
position, throttle valve will be
open, afterwards it must fall
back into limp home position.
If fall back position is not in
specified range, fault is set.
With shut off valve open and
no pressure on system, reed
contact should be closed,
showing a "high signal". If not
the case in beginning of every
diagnostics check, a signal is
sent.
DME final stage will set flag
whenever a short to ground, a
short to battery voltage or a
disconnection between output
transistor and component
exists.
Within predetermined time
LDP reed switch signal must
change from high to low or
from low to high or LDP reed
switch is "low" for longer than
predetermined time.
Within predetermined time
LDP reed switch signal must
change from high to low or
from low to high or LDP reed
2/25/2009 11:23 PM