4-16 BL-E30-0515 - 03-01-2018
4-2.8. Programmer Diagnostics
With a programmer, diagnostics and troubleshooting is
more direct than with the LED alone. The programmer
presents complete diagnostic information in plain lan-
guage - no code to decipher. Faults are displayed in
the Diagnostic Menu, and the status of the controller
inputs/outputs is displayed in the Test Menu.
The following 4-step process is generally used for
diagnosing and troubleshooting an inoperative vehicle
using the programmer:
1. Visually inspect the vehicle for obvious problems:
2. Diagnose the problem:
3. Test the circuitry with the programmer:
4. Correct the problem.
Repeat the last three steps as necessary until the
vehicle is operational.
Refer to the Table 4-4 for suggestions covering a
wide range of possible faults.
Table 4-3 LED Codes
LED Code Explanation
LED Off Not illuminated No power or defective controller
Solid On Always on Controller operational, no faults
2 00 Undervoltage Fault
3 000 Overvoltage Fault
5 00000 Brake ON Fault
6 000000 HPD Fault
Wiring Fault *
7 0000000 Speed Pot Fault
Throttle Fault
9 000000000 Battery Disconnect Fault*
Brake OFF Fault
Current Sense Fault*
EE Checker Fault
†
Hardware Failsafe*
Main Fault*
Main OFF Fault
Main ON Fault
Precharge Fault*
* = Must cycle keyswitch to clear
† = Must use programmer to clear, as follows: select Program menu,
alter data value of any parameter, cycle keyswitch.
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