Polaris RANGER 500 2017, Руководство по обслуживанию

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10.36
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
BRAKE WARNING SYSTEM
INSPECTION (INTL MODELS)
1. Inspect the brake hydraulic system for any concerns.
If any leaks or mechanical failures are found with the
hydraulic system, concerns need to be repaired
before proceeding.
2. Connect the vehicle to Digital Wrench® and select
the Data Item Menu.
3. Add the Brake Switch and Foot Brake Switch inputs
to the main table.
4. Slowly depress the brake pedal, and observe the
switching point of the Brake Pressure Switch and the
Brake Pedal Switch.
5. When the brake pedal is depressed the brake
pressure switch and brake pedal switch should
become active very close to each other.
6. If one / both switches are not changing status, check
the brake pedal (pay close attention to were the lever
triggers brake pedal switch), inspect the pedal mount
for mechanical damage, and check for free play.
NOTICE
A sticking brake pedal may also cause false brake
warning alarms.
7. The Brake Warning message could also be caused
by a failed sensor. If one / both do not switch when
monitoring on Digital Wrench®. Refer toBrake Light
Switch page
for Brake Pressure Switch testing.
Refer toBrake Pedal Switch Inspection page 10.36 for
Brake Pedal Switch testing.
8. If one / both sensors fail the testing, check the
electrical circuit for the sensor that has failed. It is
possible that there could be a concern with the circuit.
If a circuit concern is found, repair or replace as
necessary.
9. If the concern is still present after previous testing has
passed, suspect there is a fault within the ECU.
BRAKE PEDAL SWITCH INSPECTION
The Brake Pedal Switch is mounted near the Brake
Pedal Assembly. When the brake pedal is depressed this
switch will turn from active to inactive. This can be
monitored using Digital Wrench ®. If the status does not
switch when depressed, proceed with further testing.
1. Disconnect electrical connector from sensor.
2. Inspect sensor and connector for moisture or
corrosion. If moisture or corrosion is found, clean first
and re check.
3. With connector disconnected, check resistance
across pins on the sensor. When switch is closed
(brake pedal not depressed) resistance should be
less than 0.5 ohms. With switch open (brake pedal
depressed) resistance should show an open (OL).
4. If the sensor test fails, resistance is not within
specification; the sensor should be replaced.
5. If the sensor test passes, resistance is within
specification, inspect the circuit for correct operation.
If there is a concern found with the circuit repair and
recheck operation.
6. If the concern is still present, it is possible that there
may be a concern with the ECU.
BRAKE SYSTEM