WABCO iABS 2S/1M Standard Maintenance Manual page 102

Diagnostics
Suspect
Blink
SPN FMI Component
Code
and Location
18 2208 6 GIO
Component
18 2256 3 GIO
Component
18 2256 4 GIO
Component
102
Fault
ITP
Description
Function
(FMI)
Inte- Speed
grated Switch 1 -
Speed Current
Switch Too High
or Circuit
Grounded
Lift Axle Lifting Axle
Valve 2 -
Overvoltage/
Short to
Supply
Voltage
Lift Axle Lifting Axle
Valve 2 -
Under-
voltage/
Short Circuit
to Ground
Cause Repair Information
Overload was - Check the cable between
detected at the modulator and the connected
speed switch 1 component.
(ISS 1). - Check for tight seat of the
connectors.
- Test the cable for continuity
from end to end.
- Check whether water or
moisture has entered into one
of the connectors and check
the seals for proper fi t.
- Check whether the cable is
frayed.
- If no other fault can be
found, replace the connected
components.
The cable to lifting - Check the cable between
axle valve 2 has modulator and the connected
a short circuit to component.
supply voltage. - Check for tight seat of the
connectors.
- Test the cable for continuity
from end to end.
- Check whether water or
moisture has entered into one
of the connectors and check
the seals for proper fi t.
- Check whether the cable is
frayed.
- If no other fault can be
found, replace the connected
components.
The cable to the - Check the cable between
lifting axle valve 2 modulator and the connected
has a short circuit component.
to ground. - Check for tight seat of the
connectors.
- Test the cable for continuity
from end to end.
- Check whether water or
moisture has entered into one
of the connectors and check
the seals for proper fi t.
- Check whether the cable is
frayed.
- If no other fault can be
found, replace the connected
components.