CABIN
M6040, M7040, WSM
10-S4
WINDSHIELD WIPER
9Y1210143CAS0001US0
Symptom Probable Cause Solution
Reference
Page
Windshield Wiper
Does Not Operate
Fuse blown (Short-circuit, burnt component
inside motor or other part for operation)
Correct cause and
replace
9-S11
Wiper motor defective (Broken armature, worn
motor brush or seized motor shaft)
Replace 10-S52
Wiper switch defective Replace 10-S31
Foreign material interrupts movement of link
mechanism
Repair 10-S52
Wiper arm seized or rusted Lubricate or replace 10-S52
Windshield Wiper
Operating Speed Is
Too Low
Wiper motor defective (Short-circuit of motor
armature, worn motor brush or seized motor
shaft)
Replace 10-S52
Low battery voltage Recharge or replace 9-S10
Humming occurs on motor in arm operating cycle
due to seized arm shaft
Lubricate or replace 10-S52
Wiper switch contact improper Replace 10-S31
Windshield Wiper
Does Not Stop
Correctly
Wiper motor defective (Contaminated auto-return
contacts or improper contact due to foreign
matter)
Replace 10-S52
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