Mazda 6 2002, Workshop Manual

Page: 964 / 1248

WIPER AND WASHER
T–69
T
4. Inspect whether the vehicle speed signal to the wiper and washer switch terminal N (D) is input correctly using
an oscilloscope.
•
Connect the oscilloscope probes to the wiper and washer switch terminal N (D) (+) and terminal M (C) (-).
•
Set oscilloscope to 1V/DIV (Y), 5ms/DIV (X).
•
Verify that the wave pattern below is displayed
while the vehicle is moving at 30 km/h {19
mph}.
Note
•
As the vehicle speed increases, the
frequency shortens.
5. If the vehicle speed input signal and continuity for
the wiper and washer switch is correct, inspect
the windshield wiper motor.iSee
T–56
WINDSHIELD WIPER MOTOR INSPECTION )
•
Even if the windshield wiper motor is normal,
if the vehicle-speed-sensing wipers do not
operate correctly, replace the wiper and washer switch.
Rear Wiper and Washer Switch
1. Remove the wiper and washer switch. (See T–67 WIPER AND WASHER SWITCH REMOVAL/INSTALLATION )
2. Inspect for continuity between the wiper and
washer switch terminals using an ohmmeter.
•
If not as specified, replace the wiper and
washer switch.
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HEADLIGHT CLEANER MOTOR REMOVAL/INSTALLATION
A6E811651030W01
1. Disconnect the negative battery cable.
2. Remove the washer tank. (See
T–58 WASHER TANK REMOVAL/INSTALLATION )
3. Remove the washer fluid-level sensor. (See T–59 WASHER FLUID-LEVEL SENSOR REMOVAL/
INSTALLATION )
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.
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A6E8116W147
A6E8116W136
A6E8116W121
1 Connector
2 Bolt
3 Bracket
4 Headlight cleaner motor
5 Grommet
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