Starting System: 1I-3
Starting Motor Performance Test
S5JB0A1904002
CAUTION
!
Each test must be performed within 3 – 5 seconds to avoid coil from burning.
Pull-In Test
1) Connect battery to magnetic switch as shown.
2) Check that plunger and pinion move outward. If plunger and pinion don’t move, replace magnetic switch.
NOTE
Before testing, disconnect lead wire from terminal “M”.
Starting motor running,
but too slow (small
torque) – Battery and
wiring are satisfactory
Insufficient contact of magnetic switch
main contacts
Replace magnetic switch.
Layer short-circuit of armature Replace.
Disconnected, burnt or worn
commutator
Repair commutator or replace armature.
Worn brushes Replace brush.
Weakened brush springs Replace spring.
Burnt or abnormally worn end bush Replace bush.
Starting motor running,
but not cranking engine
Worn pinion tip Replace over-running clutch.
Poor sliding of over-running clutch Repair.
Over-running clutch slipping Replace over-running clutch.
Worn teeth of ring gear Replace flywheel (M/T) or drive plate (A/T).
Noise Abnormally worn bush Replace bush.
Worn pinion or worn teeth of ring gear Replace over-running clutch, flywheel (M/T) or
drive plate (A/T).
Poor sliding of pinion (failure in return
movement)
Repair or replace.
Worn internal or planetary gear teeth Replace.
Lack of oil in each part Lubricate.
Starting motor does not
stop running
Fused contact points of magnetic switch Replacemagnetic switch.
Short-circuit between turns of magnetic
switch coil (layer short-circuit)
Replace magnetic switch.
Failure of returning action in ignition
switch
Replace.
Condition Possible cause Correction / Reference Item
1. Terminal “S” 2. Terminal “M” 3. Lead wire (switch to motor)
IYSQ01190003-01
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