Sakai SV414, Shop Manual

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9-030
TROUBLESHOOTING
2-3-4. Starter motor runs even when F-R lever is not at “N” and parking brake is not
applied
Reference Fig. : 2-3-1
Check point Check/Cause Action
1. F-R Lever Switch When starter switch is OFF and F-R lever is “F” or “R”,
check continuity between F-R lever switch terminal COM
wire R and terminal NC wire W.
There is no continuity in normal condition.
If there is continuity, F-R lever switch is faulty.
•
•
Replace F-R lever
switch.
2. Parking Brake Switch
When starter switch is OFF and parking brake switch is
released position, check continuity between parking brake
switch terminal 1 and 2.
There is no continuity in normal condition.
If there is continuity, parking brake switch is faulty.
•
•
Replace parking brake
switch.
2-3-5. Engine speed cannot be switched
Reference Fig. : 2-3-1
Check point Check/Cause Action
1. Throttle Switch (1) When throttle switch is “IDLE”, check continuity between
throttle switch terminals 1 and 2, 4 and 6.
There is continuity in normal condition.
(2) When throttle switch is “MID”, check continuity between
throttle switch terminals 1 and 3, 4 and 6.
There is continuity in normal condition.
(3) When throttle switch is “FULL”, check continuity
between throttle switch terminals 1 and 3, 4 and 5.
There is continuity in normal condition.
If above item (1), (2) or (3) is NG, throttle switch is faulty. •
Replace throttle switch.
2. Throttle Relay (A6) (1) When starter switch is ON and throttle switch is “FULL”,
measure voltage between throttle relay terminal 1 inlet
wire RW and chassis ground.
Standard voltage : 12 V or more
(2) When starter switch is ON and throttle switch is “FULL”,
measure voltage between throttle relay terminal 3 inlet
wire WG and chassis ground.
Standard voltage : 12 V or more
(3) When starter switch is ON and throttle switch is “FULL”,
measure voltage between throttle relay terminal 5 outlet
wire LW and chassis ground.
Standard voltage : 12 V or more
(4) When starter switch is ON and throttle switch is “MID”,
measure voltage between throttle relay terminal 4 outlet
wire WL and chassis ground.
Standard voltage : 12 V or more
If above items (1) and (2) are OK and item (3) or (4) is
NG, throttle relay is faulty.
•
Replace throttle relay
(A6).
3. Harness Connecting
Between Terminals
Measure resistance of harness connecting between
terminals.
Standard resistance : 10 Ω or less
If resistance is abnormal, harness is faulty.
•
•
Repair or replace
harness.