BMW 1999-2005 M3 Service Manual page 1245

On-Board Diagnostics
BMW P-code
code
74
79 P0161
83 P0335
100 P0601
103 P1519
104 P1520
105 P1522
106 P1523
109 P1580
7 of 20
Fault type and Signal type and
function range
AC compressor Output digital
relay on/off (active low)
Oxygen sensor Output digital
heater post-cat pulse width (active
(Bank 1) low)
Crankshaft position Input digital
sensor, (0-12V)
malfunction
Internal control DME internal
module, memory values logical
check sum or
communication
VANOS faulty DME internal
reference value values logical
intake
VANOS faulty DME internal
reference value values logical
exhaust
VANOS stuck DME internal
(Bank 1) intake values
VANOS stuck DME internal
(Bank 2) exhaust values
Motor throttle valve Output digital
pulse width not pulse width
plausible (0-12V)
http://ebahn.bentleypublishers.com/BMW/3/E46/Repair%20Manuals/8...
Explanation
transistor and component
exists.
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.
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.
Checks for correct signal
pattern and correct number of
expected flywheel teeth.
Internal hardware test of
RAM, ROM, and Flash Prom.
Maximum VANOS adjustment
angle, checked at every
engine start must be within a
specified limit.
Maximum VANOS adjustment
angle, checked at every
engine start must be within a
specified limit.
Monitoring of a desired
VANOS adjustment within a
predefined diagnostic time
limit.
Monitoring of a desired
VANOS adjustment within a
predefined diagnostic time
limit.
Throttle position control
algorithm checks for problems
with mechanical coupling
2/25/2009 11:23 PM