WABCO 400 500 320 0, Maintenance Manual

Page: 81 / 188

81
Diagnostics
Blink
Code
SPN FMI
Suspect
Component
and Location
ITP
Function
Fault
Description
(FMI)
Cause Repair Information
18 1632 6 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage1)
Current
Too High
or Circuit
Grounded
Overload was
detected at GIO1
pin 1.
- Verify connectors are
properly seated and have no
signs of moisture or corrosion.
- Check for signs of damage to
the cable or connectors.
- Verify good continuity for the
GIO circuit.
- Verify no continuity to ground
is present on the GIO circuit.
18 1632 11 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage1)
Unkown
Load
A component for
which there are no
parameter settings
was detected at
GIO1 pin 1.
- Check the parameter setting.
- Check whether the correct
cables are used.
- Verify connectors are
properly seated and have no
signs of moisture or corrosion.
18 1633 11 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage1)
Valve Status
Ambiguous
A component for
which there are no
parameter settings
was detected at
GIO1 pin 1.
- Check the parameter setting.
- Check whether the correct
cables are used.
- Verify connectors are
properly seated and have no
signs of moisture or corrosion.
18 1648 1 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage2)
Load Too
Low
Insuf fi cient current
consumption.
Check if correct
component is
installed on GIO1
pin 4.
- Check whether the cable to
the GIO Powerstage 2 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 1648 3 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage2)
Voltage
Above
Normal or
Shorted High
A short circuit to
supply voltage was
detected at GIO1
pin 4.
- 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.