Mitsubishi FB13PNT, Quick Start Manual

Page: 160 / 292

2-73 2-73
501161 501161
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.3 3.31 1 Lif Lift L t Leve ever, r, Fau Faulty lty Set Settin ting ( g (H1) H1)
Error code: H1 Error code: H1
Situation Situation
Display: "H1" flashes. Display: "H1" flashes. Pump motor and power steering operations inhibited. Pump contactor OPEN if this fault Pump motor and power steering operations inhibited. Pump contactor OPEN if this fault
occurs when turning on power. Pump contactor CLOSE if this fault occurs when turning on power. Pump contactor CLOSE if this fault occurs during pump operation and then occurs during pump operation and then
OPEN if truck stops. OPEN if truck stops.
Possible Possible
cause
cause
Key switch turned on while operating lift lever, faulty lift control lever or lift switches 1 and 2, faulty main Key switch turned on while operating lift lever, faulty lift control lever or lift switches 1 and 2, faulty main
harness, faulty logic unit, faulty input unit.
harness, faulty logic unit, faulty input unit.
Trigger of Trigger of
the error the error
code
code
Detects lift control lever signal of CAN when turning on power (FC specification). Detects lift microswitch 1 or 2 Detects lift control lever signal of CAN when turning on power (FC specification). Detects lift microswitch 1 or 2
when turning on
when turning on power (MC specification). power (MC specification).
Checks Checks
(1) (1)
If If this this fault fault occurred occurred during during If If this this fault fault occurred occurred when when
pump pump motor motor operation operation turning turning on on power power
(2) Sit on seat, then stop pump motor operation (2) Sit on seat, then stop pump motor operation
If If fault fault remains remains Normal Normal
(7) Change lift control lever to other normal control lever (7) Change lift control lever to other normal control lever
Not Not changed changed Error Error changed changed
(11) Disconnect battery plug, then perform inverter (11) Disconnect battery plug, then perform inverter
discharging work discharging work
(12) Replace lift switch 1 or 2 (12) Replace lift switch 1 or 2
(13) Check continuity between E-04-52 and E-36-1(68) (13) Check continuity between E-04-52 and E-36-1(68)
Check continuity between E-04-51 and E-36-2(67) Check continuity between E-04-51 and E-36-2(67)
Chec Chec k short circuit between E-36-1 k short circuit between E-36-1 and E-36- and E-36- 6 6
Chec Chec k short circuit between E-36-2 k short circuit between E-36-2 and E-36- and E-36- 6 6
Continui Continui ty ty , , Not Not shorted shorted No No continui continui ty ty , , Shorted Shorted
(5) Turn off power (5) Turn off power
(6) Refer to error code (6) Refer to error code
"54", "67" or "(L)" "54", "67" or "(L)"
(9) Repair or replace (9) Repair or replace
FC-IN harness FC-IN harness
(10) Replac (10) Replac e l e l ift ift control control
lever lever
(8) D (8) D isconnect connec isconnect connec tor E-36 tor E-36 of microswitch of microswitch
Sit on seat, then turn on power again Sit on seat, then turn on power again
If If fault fault remains remains Normal Normal
FC specification FC specification
MC MC
specification specification
(4) Turn off power (4) Turn off power
Sit on sea Sit on sea t, t, then turn on pow then turn on pow er again w er again w ithout lift ithout lift
operation operation
If If fault fault remains remains Error Error code code " " 54 54 " " or or " " 67 67 " " or or " " (L) (L) " "
(3) Fail-safe function (3) Fail-safe function