Коды ошибок электропогрузчик tcm

3. CONTROL SYSTEM

■ Checking procedure by error code

(1) Traveling system

No.

Problem

01

Traveling power module

shorted

[303]

05

Traveling power

[303]

module’s upper FET is

short-circuited

Traveling power

06

module’s lower FET is

[303]

short-circuited

Traveling power module

02

is open.

[304]

13

Traveling power

[304]

module’s phase «U» is

open .

Traveling power

14

[304]

module’s phase «V» is

open.

Traveling power

15

module’s phase «W» is

[304]

open.

03

Traveling contactor

[305]

(MD) shorted or sensor

circuit harness defective

Traveling contactor

04

(MD) is stuck open or

[306]

sensor circuit harness is

defective

07

Traveling contactor

[501]

(MD) drive Tr is

defective (Tr3 on

CPU board), traveling

contactor coil is stuck

open or sensor circuit

harness is defective.

16

Fwd or Rev direction

[501]

switch is defective.

Numbers in brackets are error codes that appear on the meter panel.

Error

Proceed with remedy in numerical order of encircled numbers.

The truck won’t move.

① Check traveling power modules (TMDU,

(MD contactor does not

TMDV, TMDW) and change if needed.

close.)

(When changing any power module, change

(Traveling quick charge

the power supply board, too.)

error: error code 69)

② Check harness between CN3R (power supply

(Occurrence is also

board) and each power module, and repair or

detected.)

change if needed.

③ Check harness between CN4-2 (CPU board)

and P3 terminal, and repair or change if

needed.

④ Check harness between CN4-8 (CPU board)

and P1 terminal, and repair or change if

needed.

⑤ If no defect is found throughout the above

steps, change power supply board.

Truck won’t move.

① Check harness between CN2R (power supply

board) and CN8 (CPU board), and repair or

change if needed.

② C heck traveling power modules (TMDU,

TMDV, TMDW), and repair or change if

needed. When changing any defective power

module, change power supply board, too.

③ Check harness between CN3R (power supply

board) and each power module, and repair or

change if needed.

④ Check harness between CN4-2 (CPU board)

and P3 terminal, and repair or change if

needed.

⑤ Check harness between CN4-8 (CPU board)

and P1 terminal, and repair or change if

needed.

⑥ If no defect is found throughout the above

steps, change power supply board.

The truck won’t move.

① Check traveling contactor (MD) (for welding

or mechanical hitch) and repair or change if

needed.

② Check harness between CN5-11 (CPU board)

and P2 terminal, and repair or change if

needed.

③ Check harness between CN4-2 (CPU board)

and P3 terminal, and repair or change if

needed.

The truck won’t move.

① Check traveling contactor (MD) (for foreign

matter between contact points or mechanical

hitch) and repair or change if needed.

② Check harness between CN5-11 (CPU board)

and P2 terminal, and repair or change if

needed.

③ Check harness between CN4-2 (CPU board)

and P3 terminal, and repair or change if

needed.

The truck won’t move.

① Check traveling contactor (MD) coil for

disengagement of connectors or broken coil,

and repair or change if needed.

② Check harness between contactor oil connector

and CN4-4,12 (CPU board), and repair or

change if needed.

③ Change CPU board (drive Tr defective).

The truck won’t move.

① Check for a shorted harness between CN1-8,21

(CPU board) and FR switch, and repair or

change if needed.

② Repair or change F/R switch.

Remedy

— 38 —

Reset

Remarks

Turn off the

If any power module is

key switch.

shorted, the capacitor

between P and N cannot

be charged and thus the

error code 69 is issued.

Turn off

key switch.

Turn off

key switch.

Turn off

key switch.

Turn off

key switch.

Restore to

Both fwd and rev switch

normal.

turn of simultaneously.