TCM FB20-8 - Page 216

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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
CNCH 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.