WABCO 400 500 320 0, Maintenance Manual, Page: 76 / 188

76
Diagnostics
Blink
Code
SPN FMI
Suspect
Component
and Location
ITP
Function
Fault
Description
(FMI)
Cause Repair Information
18 1456 4 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DIn1)
Voltage
Above
Normal or
Shorted High
A short circuit to
supply voltage was
detected at the
freely con
fi gurable
function digital
input 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 short to voltage is
present on the GIO circuit.
18 1457 4 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DIn2)
Voltage
Above
Normal or
Shorted High
A short circuit to
supply voltage was
detected at the
freely con
fi gurable
function digital
input 2.
- 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 short to voltage is
present on the GIO circuit.
18 1458 4 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DIn3)
Voltage
Above
Normal or
Shorted High
A short circuit to
supply voltage was
detected at the
freely con
fi gurable
function digital
input 3.
- 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 short to voltage is
present on the GIO circuit.
18 1459 4 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DIn4)
Voltage
Above
Normal or
Shorted High
A short circuit to
supply voltage was
detected at the
freely con
fi gurable
function digital
input 4.
- 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 short to voltage is
present on the GIO circuit.
18 1472 3 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DOut1)
Voltage
Above
Normal or
Shorted High
A short circuit to
supply voltage was
detected at the
freely con
fi gurable
function digital
output 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 voltage to ground is
present on the GIO circuit.