WABCO 400 500 320 0, Maintenance Manual

Page: 85 / 188

85
Diagnostics
Blink
Code
SPN FMI
Suspect
Component
and Location
ITP
Function
Fault
Description
(FMI)
Cause Repair Information
18 1664 6 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage3)
Current
Too High
or Circuit
Grounded
Overload was
detected at GIO2
pin 1.
- Check whether water or
moisture has entered into the
connector/ dummy cap and
check the seals for proper
fi t.
- Check whether a function
has been parameterised on
this slot in addition; if this is the
case, then:
- Check the cable between
modulator and the connected
component.
- Check for tight seat of the
connectors.
- Test the cable for continuity
from end to end.
- Check whether the cable is
frayed.
18 1664 11 GIO
Component
Multiple
ITP
Func-
tions
GIO
Powerstage
Unknown load -
A load has been
detected on
GIO powerstage
3, that is not
parameterized.
- Check the parameter setting.
- Check whether the correct
cables are used.
- Verify connectors are
properly seated and have no
signs of moisture or corrosion.
- Check the cable between
modulator and the connected
component.
- Check whether the cable is
frayed.
- If no other fault can be
found, replace the connected
components.
18 1665 11 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage3)
Unknown
Load
A component for
which there are no
parameter settings
was detected at
GIO2 pin 1.
- Check whether the cable to
the GIO Powerstage 3 or the
connected load is defective.
- Check whether the correct
cables are used.
- Check whether water or
moisture has entered into one
of the connectors and check
the seals for proper
fi t.
18 1680 1 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage4)
Load Too
Low
Insuf fi cient current
consumption.
Check if correct
component is
installed on GIO2
pin 4.
- Check whether the cable to
the GIO Powerstage 4 or the
connected load is defective.
- Check whether the correct
cables are used.
- Check whether water or
moisture has entered into one
of the connectors and check
the seals for proper
fi t.