BMW 3 (E46). Manual — part 26
BMW
code
P-code
Fault type and
function
Signal type and
range
Explanation
on input line.
153
P0150
Oxygen sensor
pre-cat (Bank 2),
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 must be
within a predetermined range
(0.1V -1V) or fault will set.
154
P0150
Oxygen
sensorpre-cat
(Bank 2), 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.
155
P0150
Oxygen sensor
pre-cat (Bank 2),
disconnection
Input analog
(0-5V)
Oxygen sensor signal range
is checked to determine if
electrical disconnection exist
on input line.
156
P0136
Oxygen sensor
post-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 must be
within a predetermined range
(0.1V -1V) or fault will set.
157
P0136
Oxygen sensor
Post 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.
159
P0156
Oxygen sensor
Post Cat. (Bank 2),
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 must be
within a predetermined range
(0.1V -1V) or fault will set.
160
P0156
Oxygen sensor
post-cat (Bank 2),
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.
BMW
code
P-code
Fault type and
function
Signal type and
range
Explanation
160
MS 43
Throttle valve
position controller
DME internal
values logical
161
MS 43
Throttle valve
position controller
DME internal
values logical
162
MS 43
Throttle valve
position controller
DME internal
values logical
168
MS 43
Throttle valve
position, throttle
sticking
DME internal test
calculated
169
MDK final stage
shut off
DME internal test
This fault indicates problem
on pedal sensor, throttle
potentiometer or throttle. A
separately stored fault code
indicates problem.
171
P0601
System has been
shut down due to
safety controller
DME internal test
Safety controller has shut
down motor throttle valve
function due to not plausible
MDK input values.
172
P1542
Pedal sensor
potentiometer
short between two
potentiometer
paths
DME internal
check
5 volts for potentiometers are
switched on within a specific
time pattern.
173
P0120
Motor throttle valve
potentiometer
contact short
Rationality check
Motor throttle valve
potentiometer
174
P0120
Motor throttle valve
potentiometer
adaptation of idle
end position
Input analog
(0-5V)
Signal for idle position must
be within a specified range. If
range is exceeded, fault is
set.
175
Pedal sensor
potentiometer 1
adaptation of the
idle end position
Input analog
(0-5V)
Signal for idle position must
be within a specified range. If
range is exceeded, fault is
set.
176
P1542
Pedal sensor
potentiometer 2
adaptation of the
idle end position
Input analog
(0-5V)
Signal for idle position must
be within a specified range. If
range is exceeded, fault is
set.
BMW
code
P-code
Fault type and
function
Signal type and
range
Explanation
188
P1132
Oxygen sensor
heater, pre-cat
(Bank 1),
insufficient
Output digital
pulse width (active
low)
DME internally calculated
heater power is checked
against predefined diagnostic
limits.
189
P1133
Oxygen sensor
heater, pre-cat
(Bank 2),
insufficient
Output digital
pulse width (active
low)
DME internally calculated
heater power is checked
against predefined diagnostic
limits.
190
P1186
Oxygen sensor-
heater, post-cat
(Bank 1),
insufficient
Output digital
pulse width (active
low)
DME internally calculated
heater power is checked
against predefined diagnostic
limits.
191
P1187
Oxygen sensor
heater, post-cat
(Bank 2),
insufficient
Output digital
pulse width (active
low)
DME internally calculated
heater power is checked
against predefined diagnostic
limits.
197
MS 43
Signal range check DME internal
analog input
202
P0170
Fuel trim (Bank 1),
O2 control limit
DME internal
values logical
Controller for lambda is too
long beyond a min. or a max.
203
P0173
Fuel Trim (Bank 2),
O2 control limit
DME internal
values logical
Controller for lambda is too
long beyond a min. or a max.
204
P0505
Idle control
system, idle speed
not plausible
DME internal
values logical
Functional check between
actual engine speed (RPM)
and predetermined RPM
exceeds maximum deviation
of +200/-100 RPM.
208
EWS, engine
speed check not
ok
DME internal test
Engine speed signal is
transferred by EWS to DME.
Fault is set if transferred
signal is not reflecting engine
speed due to input problem in
EWS.
209
EWS, content of
message
Input binary
stream bit data
(0-12V)
Content of binary message
received from EWS invalid.
210
Ignition feedback,
faulty (>2
cylinders)
Input analog
timing (100 mV)
Check for correct signal
timing after each ignition has
been initiated by feedback
BMW
code
P-code
Fault type and
function
Signal type and
range
Explanation
signal. If more than two
ignition signals are not
recognized than there might
be a problem in feedback line.
211
P1510
Idle control valve
stuck
DME internal
values logical
Functional check against a
calculated value by
monitoring flow though air
mass meter to determine if
idle valve is mechanically
stuck open. Tested during
closed throttle.
214
P0500
Vehicle speed
sensor
Input digital
frequency (0-12V)
Signal range is checked
against predefined diagnostic
limits. No vehicle speed is
observed after specific time
when compared to engine
speed and load equivalent to
moving vehicle.
215
P0136
Oxygen sensor
post-cat (Bank 1),
disconnection
Input analog
(0-5V)
Oxygen sensor signal range
is checked to determine if
electrical disconnection exist
on input line.
216
P0136
Oxygen sensor
post-cat (Bank 2),
disconnection
Input analog
(0-5V)
Oxygen sensor signal range
is checked to determine if
electrical disconnection exist
on input line.
217
P0505
CAN time out
(EGS1)
Input digital binary
information(0-12V)
CAN message between
DME/EGS was not received
within expected time.
219
CAN-chip, bus off
Input digital binary
information (0-12V)
Hardware test determines if
CAN bus is off line. Data
transmission is disturbed.
220
P1184
Oxygen sensor
post-cat (Bank 1)
slow response time
Input analog (high
is lean) (0-5V)
Checks amount of time
oxygen sensor stays in rich or
lean state. If it remains there
too long in either, fault will
set.
221
P1185
Oxygen sensor
post-cat (Bank 2)
slow response time
Input analog (high
is lean) (0-5V)
Checks amount of time
oxygen sensor stays in rich or
lean state. If it remains there
too long in either fault will set.
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