Mitsubishi FB13PNT Quick Start Manual page 168

CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.35 5 Sea 3.3 Seat Swit
Error code: (L) Error code: (L)
Situation Situation
Possible Possible
cause cause
Trigger of Trigger of
the error the error
code code
Checks Checks
(1) (1)
(2) Sit on seat, then stop pump mot (2) Sit on seat, then stop pump mot
If If
(4) Turn off power (4) Turn off power
Sit on seat, then turn on power again Sit on seat, then turn on power again
(5) Turn off power (5) Turn off power
(6) Adjust seat suspension (6) Adjust seat suspension
If If
(8) Disconnect battery plug (8) Disconnect battery plug
(9) Disconnect connector C-02, then short-circuit (9) Disconnect connector C-02, then short-circuit
between terminals C-02-2 and C-02-3 between terminals C-02-2 and C-02-3
Turn o Turn
If If
(10) Disconnect battery plug, then perform inverter (10) Disconnect battery plug, then perform inverter
discharging work discharging work
(12) Disc (12) Disconnec
t Switch, F ch, Faul aulty Set ty Settin ting for Hy g for Hydra
Display: "L" flashes. Pump motor and power steering operations inhibited. Pump contactor OPEN if this fault Display: "L" flashes. Pump motor and
occurs when turning on power. Pump contactor CLOSE if this fault occurs during pump operation and then occurs when turning on power. Pump contactor CLOSE if this fault
OPEN if truck stops. OPEN if truck stops.
Operator not seated, seat switch turned off during pump motor operation, improper seat suspension Operator not seated, seat switch turned off during pump motor operation, improper seat suspension
adjustment, faulty seat switch, faulty main harness, adjustment, faulty seat switch, faulty main harness, faulty logic unit.
Detects seat switch opening when turning on power or during pump operation. Detects seat switch opening when turning on power or during pump operation.
If If this this fault fault occurred occurred
turning turning on on power power
or operation or operation
fault fault remains remains
(3) Fail-safe function (3) Fail-safe function
If fault remains If fault remains
fault fault remains remains
(7) Faulty (7) Faulty s seat switch eat switch
on n power power again again
fault fault remains remains
onnect connector t connectors E-04 s E-04 and E-03 and E-03
drauli ulic ((L) c ((L)) )
power steering operations inhibited. Pump contactor OPEN if this fault
faulty logic unit.
during during
Normal Normal
Normal Normal
position position
Normal Normal
(11) Replace seat switch (11) Replace seat switch
of logic unit of logic unit
occurs during pump operation and then
If If this this fault fault occurred occurred when when
turning turning on on power power
501165 501165
2-81 2-81