SECTION 06B: ELECTRICAL
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Final Version – Rev.2 April 2016)
13
MID 188 PSID # 54 Engine Fan Spd2 (A52 J1:2)
Type of
fault:
FMI
Description:
Fault Condition:
Possible
Symptoms:
Possible Causes:
FMI 3
Shorted High
Voltage present on
output A52 J1:2 but
output not active
Radiator fan
clutch Mo2 not
working on
speed 2
•
A52 module failure
•
Radiator fan clutch Mo2 failure
•
Connector C91 corroded
•
Connector C426 corroded
•
Diode D36 shorted internally
•
Circuit 292 shorted to battery
FMI 4
Shorted Low
Output A52 J1:2
shorted to ground
Radiator fan
clutch Mo2
always ON
speed 2
•
A52 module failure
•
Radiator fan clutch Mo2 failure
•
Connector C91 corroded
•
Connector C426 corroded
•
Circuit 292 shorted to ground
FMI 5
Open Circuit
A52 module does not
detect radiator fan
clutch Mo2
Radiator fan
clutch Mo2 not
working on
speed 2
•
A52 module failure
•
Radiator fan clutch Mo2 open
circuit
•
Connector C91 corroded
•
Connector C426 corroded
•
Circuit 292 open
FMI 6
Current
above normal
Output A52 J1:2
internal software fuse
active for overcurrent
Radiator fan
clutch Mo2 not
working on
speed 2
•
A52 module failure
•
Connector C91 corroded
•
Connector C426 corroded
•
Circuit 292 shorted to battery
MID 188 PSID # 70 Ent Close Out (A36 JB:17)
Type of
fault:
FMI
Description:
Fault Condition:
Possible
Symptoms:
Possible Causes:
FMI 3
Shorted High
Voltage above
normal on A36 JB:17
Entrance door
cannot be
opened
•
A36 module failure
•
Sw34 failure
•
Connector C6 corroded
•
Circuit 49 shorted to battery
FMI 4
Shorted Low
Voltage below normal
on A36 JB:17
Entrance door
cannot be closed
with switch
•
A36 module failure
•
Sw34 failure
•
Connector C6 corroded
•
Circuit 49 shorted to ground
MID 188 PSID # 63 Ent Close Sens (A47 J1:10)
Type of
fault:
FMI
Description:
Fault Condition:
Possible
Symptoms:
Possible Causes:
FMI 3
Shorted High
Voltage above
normal on A47 J1:10
Entrance door
cannot be
opened
•
A47 module failure
•
Se76 failure
•
Connector CXC1 corroded
•
Circuit 3 shorted to battery
FMI 4
Shorted Low
Voltage below normal
on A47 J1:10
Entrance door
cannot be
closed with
switch
•
A47 module failure
•
Se76 failure
•
Connector CXC1 corroded
•
Circuit 3 shorted to ground