Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual, os 30
135
24 NOVEMBER 2015
9 — DIAGNOSTICS & TROUBLESHOOTING
Summary of LED display formats
e two LEDs have four dierent display modes, indicating the type of infor-
mation they are providing.
Table 5 TYPES OF LED DISPLAY
DISPLAY STATUS
Neither LED illuminated Controller is not powered on; or
vehicle has dead battery; or
severe damage.
YellowLEDashing Controllerisoperatingnormally.
Yellow and red LEDs both on solid Controller is in Flash program mode.
Red LED on solid No software loaded, or an internal hard-
ware fault detected by the Supervisor
or Primary microprocessor. Cycle KSI
to clear. Reload software or replace
controller if necessary.
RedLEDandyellowLEDashing Controllerhasdetectedafault.
alternately 2-digitcodeashedbyyellowLED
identiesthespecicfault;oneortwo
ashesbyredLEDindicatewhether
rstorsecondcodedigitwillfollow.
TROUBLESHOOTING
e troubleshooting chart, Table 6, provides the following information on all
the controller faults:
• faultcode
• faultnameasdisplayedontheprogrammer’sLCD
• theeectofthefault
• possiblecausesofthefault
• faultset conditions
• faultclear conditions.
Whenever a fault is encountered and no wiring or vehicle fault can be found,
shut o KSI and turn it back on to see if the fault clears. If it does not, shut
o KSI and remove the 35-pin connector. Check the connector for corrosion
or damage, clean it if necessary, and re-insert it.