Code Fault reaction Description of fault Possible cause Ter-
minal
on
BLM
Input
code
for
diag-
nose
5040 Output is
switched off,
engine stops
Output HW-shut-down sol-
enoid, Y 13
Too high current flow out of
this output
Output was switched off!
Excessive current flow in cur-
rent path, probably because of
a defective coil or a short cir-
cuit to ground
X3:10 -
5041 Output is
switched off,
engine stops
Output HW-shut-down sol-
enoid, Y 13
Short-circuit current flow out
of this output
Output wasswitched off!
Short circuit to ground in the
current path
Lines rubbed through
Valve defective
X3:10 -
5042 Output is
switched off,
engine stops
Output HW-shut-down sol-
enoid, Y 13
No or too low current flow
out of this output
Wire breakage in current path
Current path connected to
+12V
X3:10 5040
5041
5042
5043 Output is
switched off,
engine stops
Output HW-shut-down sol-
enoid, Y 13
Although the output is
switched off, voltage is
present
Current path connected to
+12V
X3:10 5040
5041
5042
5050 Output is
switched off,
engine runs only
with idle speed
Output relay K 114, engine
speed solenoid
Too high current flow out of
this output
Output was switched off!
Excessive current flow in cur-
rent path, probably because of
a defective coil or a short cir-
cuit to ground
X3:09 -
5051 Output is
switched off,
engine runs only
with idle speed
Output relay K 114, engine
speed solenoid
Short-circuit current flow out
of this output
Output was switched off!
Short circuit to ground in the
current path
Lines rubbed through
X3:09 -
5052 Output is
switched off,
engine runs only
with idle speed
Output HW-shut-down sol-
enoid, Y 13
No or too low current flow
out of this output
Wire breakage in current path
Current path connected to
+12V
X3:09 5050
5051
5052
5053 Output is
switched off,
engine runs only
with idle speed
Output relay K 114, engine
speed solenoid
Although the output is
switched off, voltage is
present
Current path connected to
+12V
X3:09 5050
5051
5052
5054 Input AUX – signal engine
solenoid Y 13
Wire breakage in current path X3:04 -
Appendix – List of fault codes
D.ONE
176