TCM FB-8 Series, Service Manual

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3. TROUBLESHOOTING GUIDE
(15) 217
23
: Rapid charging of capacitor abnormal
(Improper charging of capacitor between P and
N terminals)
Resets when the key switch is turned OFF.
①
Troubleshoot the problem according to Error Code
218.
②
Troubleshoot the problem according to Error Code
418.
(16) 218
15
: Drive motor inverter upper/lower FET short-
circuited
Resets when the key switch is turned OFF.
219
19
: Drive motor inverter upper FET short-circuited Resets when the key switch is turned OFF.
220
21
: Drive motor inverter lower FET short-circuited Resets when the key switch is turned OFF.
①
Check the battery cable connection. (Check the
contactor secondary side for any negative (-) voltage
leaks.)
Correct the cable.
②
Remove the motor cables from U-, V-, and W phase. –
③
Check for any electrical leaks between the motor
cable, and the positive (+) and negative (-) terminals. Correct the cable.
④
Check the bars and bolts that connect between the
drive and pump motor inverter units for looseness.
Retighten.
⑤
Check the harness for the
CN1D-24
terminal on the
drive motor inverter unit.
Correct the wiring.
⑥
Check the RCH (rapid charger resistor). Repair the RCH.
⑦
Check the harness between
CN1D-11/CN1D-12
and
C NCH on the drive motor inverter unit.
Correct the wiring.
⑧
Replace the drive motor inverter unit.
(17) 221
94
: Travel overspeed
Automatically resets when the input returns to
normal.
①
Check the harness between the drive motor inverter
unit ( CN2D-3, -5, -15, -16, -27, -29 ) and the rotation
sensor.
Correct the wiring.
②
Check the drive motor slit board. Repair the slit board.
③
Check the rotation sensor.
Repair the rotation sensor.
④
Replace the drive motor inverter unit.