WABCO 400 500 320 0, Maintenance Manual

Page: 79 / 188

79
Diagnostics
Blink
Code
SPN FMI
Suspect
Component
and Location
ITP
Function
Fault
Description
(FMI)
Cause Repair Information
18 1474 6 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DOut3)
Current
Too High
or Circuit
Grounded
Overload was
detected at the
freely con
fi gurable
function digital
output 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 continuity to ground
is present on the GIO circuit.
18 1475 3 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DOut4)
Voltage
Above
Normal or
Shorted High
A short circuit to
supply voltage was
detected at the
freely con
fi gurable
function digital
output 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 1475 4 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DOut4)
Under-
voltage/
Short Circuit
to Ground
A short circuit
to ground was
detected at the
freely con
fi gurable
function digital
output 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 continuity to ground
is present on the GIO circuit.
18 1475 5 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DOut4)
Supply Cable
Interruption
Nothing is
connected at
the digital output
4 of the freely
con
fi gurable
function or the
cable is defective.
- 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.
18 1475 6 GIO
Component
Multiple
ITP
Func-
tions
Free
Con fi gurable
Function -
(DOut4)
Current
Too High
or Circuit
Grounded
Overload was
detected at the
freely con
fi gurable
function digital
output 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 continuity to ground
is present on the GIO circuit.