BMW 3 (E46). Manual — part 25
BMW
code
P-code
Fault type and
function
Signal type and
range
Explanation
117
P1542
Pedal sensor
potentiometer
plausibility
Input analog
(0-5V)
If there is a difference greater
than specified between two
redundant signals from
potentiometer, fault will be
set.
118
P0120
MS 42
Motor throttle
feedback
potentiometer
plausibility
Input analog
(0-5V)
If there is a difference greater
than specified between two
redundant signals from
potentiometer, fault will be
set.
MS 43
Throttle position
sensor 1;
plausibility check
sensor 1 to mass
air flow meter
DME internal
values
Signal range is checked
against predetermined
diagnostic limits. Rationality
check with mass air flow
meter.
119
P1580
MS 42
MDK, throttle
mechanical
sticking
DME internal test
Throttle doesn't reach desired
opening angle within a
specified time.
MS 43
Throttle position
sensor 2;
plausibility check
sensor 1 to mass
air flow meter
DME internal
values
Signal range is checked
against predetermined
diagnostic limits. Rationality
check with mass air flow
meter.
120
P1542
MS 42
Pedal sensor/
motor throttle valve
potentiometer not
plausible
DME internal
values logical
motor
Signal from motor throttle
valve potentiometer must be
equal signal from pedal
sensor potentiometer plus
any adaptive values.
MS 43
Plausibility check
between brake
switch and pedal
sensor
Input digital /
analog
Plausibility check between
constant pedal value and
brake switch. First pedal
value must be constant and
for next step brake switch
must be active.
122
P1101
Oil temp. sensor
malfunction
Input analog
(0-5V)
Signal range is checked
against predefined diagnostic
limits and calculated
temperature.
123
P1622
Electric thermostat
control, final stage
Output digital
on/off (active low)
DME final stage will set flag
whenever a short to ground, a
short to battery voltage or a
BMW
code
P-code
Fault type and
function
Signal type and
range
Explanation
disconnection between output
transistor and component
exists.
124
P1593
DISA, range/perf.
Output digital
on/off (active low)
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.
125
Coolant fan, final
stage
Output digital
on/off (active low)
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.
126
P1470
MS 42
LDP-magnetic
valve
Output digital
on/off (active low)
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.
MS 43
DMTL valve
Output digital
on/off (active low)
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.
127
Fuel pump
Output digital
on/off (active low)
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.
128
EWS signal not
present or faulty
Input binary
stream bit data
(0-12V)
During time out check no
signal was present within
specific time or faulty
information from serial
interface (parity, overrun,
etc.).
130
CAN time out
(ASC1)
Input binary
stream bit data
(0-12V)
CAN message between
DME/EGS not received within
expected time.
BMW
code
P-code
Fault type and
function
Signal type and
range
Explanation
131
CAN time out (instr
2)
Input binary
stream bit data
(0-12V)
CAN message between
DME/EGS not received within
expected time.
132
CAN time out (instr
3)
Input binary
stream bit data
(0-12V)
CAN message between
DME/EGS not received within
expected time.
133
CAN time out
(ASC3)
Input binary
stream bit data
(0-12V)
CAN message between
DME/EGS not received within
expected time.
135
MS 43
Limp home
position adaptation
necessary
DME internal
values logical
Limp home position must be
in specified range. If range is
exceeded, a fault is set.
136
MS 43
Motor throttle valve
open / closing test
failed
DME internal
values logical
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.
140
P1475
LDP reed-switch
not closed
Input digital on/off
(0-12V)
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.
140
MS 43
DMTL pump final
stage
Output digital
on/off (active low)
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.
141
P1477
EVAP: reed switch
not closed, doesn't
open or doesn't
close
Input digital on/off
(0-12V)
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.
142
P1477
EVAP: reed switch
not closed, doesn't
open or doesn't
close
Input digital on/off
(0-12V)
Within predetermined time
LDP reed switch signal must
change from high to low or
from low to high or LDP reed
BMW
code
P-code
Fault type and
function
Signal type and
range
Explanation
switch is "low" for longer than
predetermined time.
142
MS 43
DMTL module fault
DME internal
values logical
143
P1476
EVAP: clamped
tube check
Input digital
frequency (0-12V)
Frequency of LDP pumps
reed switch is lower then
predetermined limit. Volume
of leak is determined to be too
small (i.e. pinched or
restricted hose)
146
MS 43
Range check
voltage supply
pedal sensor 2 and
throttle position
sensors
DME internal input
analog
Supply voltage for sensors
must be within a specified
range.
147
MS 43
Range check
voltage supply
pedal sensor 2 and
throttle position
sensors
DME internal input
analog
Supply voltage for sensors
must be within a specified
range.
149
P1140
Motor throttle
feedback
potentiometer and
air mass sensor
signal not
plausible
Input analog
(0-5V)
Signal from motor throttle
valve potentiometer must be
suitable to signal from air
mass sensor. A fault is set if
difference exceeds specified
limit.
150
P0130
Oxygen sensor
pre-cat (Bank 1),
short to battery
volt.
Input analog
(0-5V)
Oxygen sensor signal range
is checked to determine if
electrical shorts exist on input
line. Voltage signal has to be
within a predetermined range
(0.1V -1V) or a fault will set.
151
P0130
Oxygen sensor
pre-cat (Bank 1),
short to ground
Input analog
(0-5V)
Oxygen sensor signal range
is checked to determine if
electrical shorts exist on input
line. Voltage signal must be
within a predetermined range
(0.1V -1V) or fault will set.
152
P0130
Oxygen sensor
pre-cat (Bank 1),
disconnection
Input analog
(0-5V)
Oxygen sensor signal range
is checked to determine if
electrical disconnection exist
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