Guide to diagnostics of electronic controls EWM10931
2011 SOE/DT-mdm FCPD-dp Quality-tb
40/75
599 73 77-37
MOTOR CONTROL
MOTOR
E52: No signal from motor tachometric generator
(second part)
E52
Cycle interrupted
after 5 attempts during the cycle, immediately
if recognised at the start of the cycle or during diagnostics.
E52
Checks to perform:
To check the wiring, measure (
Ω
)
between the following wiring connectors
of the motor control board
-(fig.14)-
and compare the values with
(
see page 41
: point 4 -
motor parameters)
- between J2-6 and J2-7, a value as in
point 4 -
B
(Stator) must be found
- between J2-5 and J2-6, a value as in
point 4 -
C
(Stator) must be found
- between J2-5 and J2-7, a value as in
point 4 -
D
(Stator) must be found
Are the values correct?
Replace the motor control board and
repeat the diagnostic cycle to check for
any further alarms.
Check the
motor as on
page 41
.
Is the
motor ok?
The motor never runs
Replace the motor
and repeat the
diagnostic cycle to
check for any
further alarms.
Check/replace the wiring and repeat
the diagnostic cycle to check for any
further alarms.
Check that all the connectors are correctly inserted
!
NO
Y
E
S
J2
J6
J1
Fig. 14
NO
Y
E
S
If there are burns on the circuit
board, see page 73
!
Fig. 11
Connector
- Motor
