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3.2.3 1232 Controller diagnosis and troubleshooting
1232 Controller can detect fault and wrong information under various condition.
Diagnostics
Diagnostics information can be obtained in three ways by reading the two fault codes displayed
on the instrument (the first two fault code for drive controller, the second two fault code for steering
controller) by observing the fault codes issued by the Status LEDs by reading the display on
the programmer
The pair of LEDs built into the 1232 controller (one red, one yellow) produce flash codes
displaying all the currently set faults in a repeating cycle.
Display Information
LED light is off
Controller power is not on; or vehicle has dead battery; or other
severe damage.
LED light flashes yellow Controller is in normal working status.
LED light is often red
Controller failed to supervise or did not load software. Restart KSI
cycle, load software if necessary.
LED flashes yellow or red
alternately
Controller has detected a fault.
Red and yellow lights flash alternately in a repeated interval when there detects fault. Each code
consists of two digits. The red LED flashes once to indicate that the first digit of the code will follow;
the yellow LED then flashes the appropriate number of times for the first digit. The red LED
flashes twice to indicate that the second digit of the code will follow; the yellow LED flashes the
appropriate number of times for the second digit.
For example fault name relevant code 23).
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