DETAILED CASE AND MODULE DESCRIPTION
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8-30
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version: B.1
Table 8-15 Diagnosing SSCC IIIi Module Problems
The following table shows the diagnostic messages generated by the SSCC IIIi Module.
Diag Display /
Description
Cause
Remedy
Crossing Lamp
Failure (Diag2001)
Lamp driver has failed
Replace the module
Lamp Neutral Wire
Open (Diag2002)
The SSCC IIIi has detected that the
lamp neutral wire is open
LED Lamps are being driven by the
SSCC
Check the neutral wire to the lamps
Turn off Lamp Neutral Test in SSCC
programming
Low Battery Warning
(Diag2003)
The battery voltage has dropped
below the Low Battery Detection
level set in the program
If the Low Battery Detection Level is set
correctly, then the battery requires
maintenance or replacement
Lamp Voltage
Limited (Diag2005)
The user tried to set the lamps
above the battery voltage
Reduce the lamp voltages to be less than the
battery voltage
No Communications
(Diag2017)
No Communications indicates that
the SSCC IIIi module is not
communicating with the CPU
a) Check that there is a module in the
appropriate slot
b) Check that the power light on the module
is on
c) Check to see if the module is continuously
rebooting, (health LED goes off for 10s,
then on for 10s), if it is, then replace the
module) If the module is not continuously
rebooting, then check to see if the module
is unconfigured (the health LED is flashing
fast). If only this module is UCFG, then
replace it, if all modules are unconfigured
then replace the CPU