Mitsubishi FB13PNT, Quick Start Manual

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2-55 2-55
E-27 E-27
3 3 2 2
6 6 5 5
1 1
4 4
H-01(3W) H-01(3W)
1 1 2 2 3 3
4 4 5 5 6 6
E-38(4W) E-38(4W)
2 2 1 1
501145 501145
23 23
1 1
B B
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3. 3.22 22 Ti Tire A re Ang ngle S le Sen enso sor Fa r Faul ult (5 t (50) 0)
Error code: 50 Error code: 50
Situation Situation
Display: "50". All operations inhibited except mast lowering operat Display: "50". All operations inhibited except mast lowering operation. Line and steering contactor OPEN. ion. Line and steering contactor OPEN. Or Or
travelling speed limited to 5 km/h. travelling speed limited to 5 km/h.
Possible Possible
cause
cause Faulty steering sensor, faulty main harness, faulty PS Faulty steering sensor, faulty main harness, faulty PS controller. controller.
Trigger of Trigger of
the error the error
code
code
Voltage 4.8 or more, or 0.2 or less Voltage 4.8 or more, or 0.2 or less
12°of phase difference between A and B
12°of phase difference between A and B
36°of fluctuation for 10 ms
36°of fluctuation for 10 ms
Checks Checks
(1) Disconnect battery plug (1) Disconnect battery plug
(6) Replace harness (6) Replace harness
(5) Conne (5) Conne ct logic connector ct logic connector and connec and connec t t battery plug battery plug . .
Turn on power Turn on power
Check voltage between H-01(3W) E-38(4W)-3(Power) Check voltage between H-01(3W) E-38(4W)-3(Power)
and ( and ( GND) GND) and c and c heck heck voltage between voltage between H H -01(3W) -01(3W)
E-38(4W)-4(Power) and 6(GND) E-38(4W)-4(Power) and 6(GND)
5 5 V V ± ± 10 10 % % Outside Outside the the specified specified range range
(3) Check continuity between E-08-14 and (3) Check continuity between E-08-14 and
H-01(3W) E-38(4W)-2 H-01(3W) E-38(4W)-2
Check continuity between E-08-6 and Check continuity between E-08-6 and
H-01 H-01 (3W) E-38(4W) (3W) E-38(4W) -5 -5 (S (S ignal) ignal)
Continuity Continuity No No continuity continuity
(2) Disconnect connecter E-08 and H-01(3W), E-38(4W) (2) Disconnect connecter E-08 and H-01(3W), E-38(4W)
Check continuity between E-08-26 and H-01(3W) Check continuity between E-08-26 and H-01(3W)
E-38(4W)-3, E-08-26 and E-01(3W) E-38(4W)-4 E-38(4W)-3, E-08-26 and E-01(3W) E-38(4W)-4
(S (S ens ens or or vol vol tage) tage)
Continuity Continuity No No continuity continuity
(4) Check continuity between E-08-23 and H-01(3W) (4) Check continuity between E-08-23 and H-01(3W)
E-38(4W)-1, E-08-23 and H-01(3W) E-38(4W)-6(GND) E-38(4W)-1, E-08-23 and H-01(3W) E-38(4W)-6(GND)
Continuity Continuity No No continuity continuity
(7) Turn off (7) Turn off power power , , turn off turn off battery battery , and discharg , and discharg e e
Check steering wheel angle sensor linkage Check steering wheel angle sensor linkage
Normal Abnormal Normal Abnormal
If fault remains If fault remains
(11) Reinstall steering wheel angle sensor just has been (11) Reinstall steering wheel angle sensor just has been
l d l d
(8) Replace logic power board (8) Replace logic power board
(10) Repair linkage (10) Repair linkage (9) R (9) R eplace eplace steering w steering w heel angle heel angle sens sens or or