WABCO iABS 2S/1M Standard, Maintenance Manual

Page: 86 / 188

86
Diagnostics
Blink
Code
SPN FMI
Suspect
Component
and Location
ITP
Function
Fault
Description
(FMI)
Cause Repair Information
18 1680 3 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage4)
Voltage
Above
Normal or
Shorted High
A short circuit to
supply voltage was
detected at GIO2
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.
18 1680 4 GIO
Component
Multiple
ITP
Func-
tions
GIO_
Powerstage -
(PwrStage4)
Under-
voltage/
Short Circuit
to Ground
A short circuit
to ground was
detected at GIO2
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.