20-350 PC58UU-3
TROUBLESHOOTING
E-22 When traveling accelerator pedal is released, travel speed does not
lower from raised level
E-22 Related electrical circuit diagram
Cause Remedy
• When traveling accelerator
switch is turned ON:
Approx. 0 V
• When traveling accelerator
switch is turned OFF:
Approx. 12 V
1
Is voltage between F19 (2) and chassis
ground normal?
NO
YES
Trouble in hydraulic system —
• When switch is turned ON:
Max. 1 z
• When switch is turned OFF:
Min. 1 Mz
• Turn starting switch OFF.
• Disconnect switch terminal
2
Is continuity of traveling accelerator
switch normal?
NO
Defective traveling accelera-
tor switch
Replace
YES
Short circuit with power
source in wiring harness
between G3 (female) (27) –
F8 (female) (2)
Repair or
replace
E-22
(6)
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