BMW 1999-2005 M3 Service Manual page 102

On-Board Diagnostics
BMW P-code
code
110 P1542
111 P1542
112 P0120
MS 42
MS 43
113 P0120
114 P1580
MS 42
MS 43
115 P1623
MS 42
MS 43
116 P1623
8 of 20
Fault type and Signal type and
function range
Pedal sensor Input analog
potentiometer 1 (0-5V)
Pedal Sensor Input analog
Potentiometer 2 (0-5V)
Motor throttle valve Input analog
potentiometer 1 (0-5V)
Throttle position Input analog
sensor 1 (0-5V)
Motor throttle valve Input analog
potentiometer 2 (0-5V)
Motor throttle valve DME internal test
final stage
A second pedal DME internal
sensor range values logical
check failure is
determined
Output voltage 5V DME internal (5V)
for potentiometer
operation 1
Range check for Input analog
throttle position (0-5V)
adaptation
Output voltage for DME internal (5V)
potentiometer
operation 2
http://ebahn.bentleypublishers.com/BMW/3/E46/Repair%20Manuals/8...
Explanation
spring within motor throttle
body.
Failed signal range check
against predefined diagnostic
limits.
Failed signal range check
against predefined diagnostic
limits.
Failed signal range check
against predefined diagnostic
limits.
Failed signal range check
against predefined diagnostic
limits.
Failed signal range check
against predefined diagnostic
limits.
Final stage inside DME
(special H-bridge), will set
internal flag whenever a short
to ground, a short to battery
voltage or a disconnection
occurs.
If pedal sensor malfunction is
determined, followed by a
second malfunction, a signal
is sent.
Check for proper 5 volts
supply to potentiometers is
possible within a predefined
voltage limit.
Range check for closed
position of throttle sensors.
Check for proper 5 volts
supply to potentiometers is
possible within a predefined
voltage limit.
2/25/2009 11:23 PM