BMW 1999-2005 M3 Service Manual page 98

On-Board Diagnostics
BMW P-code
code
33 P0205
35 P1453
36 MS 43
38 MS 43
39
40
42
43
4 of 20
Fault type and Signal type and
function range
Injector circuit cyl. Output digital
5 pulse width (active
low)
Secondary air Output digital
injection pump on/off (active low)
Main relay Input analog
malfunction (0-12V)
Clutch switch Input digital
faulty (0-12V)
Brake light switch, Input digital
and brake light (0-12V)
plausibility test
Brake light switch, Input digital /
pedal sensor analog (0-12V /
plausibility test 0-5V)
Multi functional Input binary
steering wheel, stream (0-12V)
redundant code
Multi functional Input binary
steering wheel, stream (0-12V)
control switch
http://ebahn.bentleypublishers.com/BMW/3/E46/Repair%20Manuals/8...
Explanation
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.
TDME final stage will set flag
whenever a short to ground, a
short to battery voltage or a
disconnection between output
transistor and component
exists.
Signal range check between
DME ignition analog input
and main relay power circuit
analog input.
Plausibility check of clutch
switch and DME internal
values such as load and
engine speed.
When brake light switch is
active, brake light test switch
must be also active. If not,
fault is stored.
If pedal sensor is showing
angle greater than "limp
home angle" and additionally
brake light switch is active,
fault is stored.
Every signal from cruise
control switch is transferred
redundantly. A fault is set
whenever two redundant
information paths are showing
a different status.
When status from cruise
control showing
set/accelerate and
deceleration are same time,
fault is set.
2/25/2009 11:23 PM