BENDIX BlindSpotter BW2860 Guida alla configurazione
Bendix™BlindSpotter®Collision Warning System
Troubleshooting Guide
Bendix™BlindSpotter®Collision Warning System
BW2860 (Formerly VOTS0032)
September 2011
General Information
General Warnings
Before starting a vehicle:
1. Sit in the driver’s seat.
2. Place the vehicle in neutral.
3. Set the parking brake.
4. Disengage the clutch.
Before working on the vehicle or leaving the cab with the engine
running:
1. Place the vehicle in neutral.
2. Set the parking brake.
3. Block the wheels.
Do not operate the vehicle if the alternator lamp is lit or if the
gauges indicate low voltage.
Related Publications
Related documents are available for download on the Document
Library or from the Literature Center on www.bendix.com.
Suggested Tools
Part No. Description
5505027 Volt/Ohm Meter
(Standard commercially available VOM)
For Bendix Service Parts call 1-800-AIR-BRAKE (1-800-247-2725).
Table of Contents
Table of Contents
Section 1: Introduction
Diagnostic Procedure................................................................ 1-2
Section 2: Fault Isolation Procedures
Electrical Pretest....................................................................... 2-1
Power-Up Sequence Test.......................................................... 2-4
Section 3: Symptom Isolation Procedures
Operator Display Unit Audible Indictor
(Buzzer) Not Functioning ..................................................... 3-1
Side Sensor Not Detecting Targets ........................................... 3-5
Side Sensor Continuously Detecting Targets ............................ 3-7
Appendix
Wiring Diagrams .......................................................................A-1
Table of Contents
1-1
1-2
Introduction
Diagnostic Procedure
Follow the flowchart below for all Bendix™VORAD®system failures. Perform the tests and procedures as directed by the flowchart.
Key On
Is the
Operator Display
Unit lamp lit?
Is Driver
Experiencing System
Problems?
Test Complete.
•Perform Electrical Pretest
(page 2-1)
•Perform Power-up Sequence Test
(page 2-5)
•See System Isolation Procedures
(page 3-1)
NO
YES
YES
NO
Fault Isolation Procedures
2-1
Electrical Pretest
Electrical Pretest
Overview
The pretest verifies the basic electrical inputs before testing
individual circuits.
Detection
There is no detection process specifically for the basic electrical
supply. However, failures of this type are generally detected by the
Bendix™VORAD®system or the driver as some other type of fault
code or symptom.
Fallback
There is no fallback for the electrical pretest, however, it may affect
other systems.
Required Tools
• Basic Hand Tools
• Digital Volt/Ohm Meter
• Troubleshooting Guide
Possible Causes
This pretest can be used for any of the following:
• Corroded Power Contacts
• Blown Fuse
• Wiring Harness
• Low Batteries
Harness
P2 SOD
Operator
Display Unit
(ODU)
Sensor
Fault Isolation Procedures
2-2
Electrical Pretest
Step A Procedure Condition Action
1. Key off.
2. Inspect starter/battery
connections for integrity.
3. Measure voltage across
battery.
If voltage is 11 to 13 volts
on a 12 volt system or 22 to
26 on a 24 volt system
If voltage is outside of
range
Go to Step B.
Repair or replace batteries and
charging system as required.
Repeat this step.
Step B Procedure Condition Action
1. Key off.
2. Disconnect negative (-) battery
cable.
3. Disconnect the sensor J2 harness.
4. Measure resistance
between sensor harness
J2 pin 2 and ground.
If resistance is 0 to .5 ohms
If resistance is outside of
range
Go to Step C.
Repair ground path to system.
Go to Step A.
OHMS
GROUND
V ACOM
1
2
3
4
5
6
VOLT
V ACOM
Fault Isolation Procedures
Electrical Pretest
2-3
Electrical Pretest, continued
Step C Procedure Condition Action
1. Key off.
2. Connect negative (-) battery
cable.
3. Key on.
4. Measure voltage
between sensor harness
J2 pin 1 and ground.
If voltage is within .5 volts
of battery voltage
If voltage is outside of
range
Test complete.
Repair power path to system.
Fuse may be blown. Reconnect all
connectors. Go to Step A.
OHMS
GROUND
V ACOM
1
2
3
4
5
6
Fault Isolation Procedures
2-4
Power-Up Sequence Test
Overview
The failure during the power-up self-check indicates a system
failure.
Detection
The power-up self-check is performed automatically each time the
key is turned on. Turn the key on and watch the Operator Display
Unit (ODU). If lights on the ODU remain on after 15 seconds, or
never come on, the self-check has failed.
Fallback
If self-check fails, the product can not perform any operations.
Required Tools
• Digital Volt/Ohm Meter
Possible Causes
• Sensor
• Operator Display Unit
• Vehicle Harness
Harness
P2 SOD
Operator
Display Unit
(ODU)
Sensor
Fault Isolation Procedures
2-5
Power-Up Sequence Test
Power-Up Sequence Test
Step A Procedure Condition Action
Step B Procedure Condition Action
1. Before performing this test, the
Electrical Pretest must pass.
2. Clear area around sensor of objects.
3. Key on.
4. Observe the Operator
Display Unit.
1. Key on.
2. Disconnect sensor harness J2.
3. Key on.
4. Measure voltage
between sensor harness
J2 pins 1 and 2.
If both LED lights turn on
for .5 seconds – followed by
the red LED for 5 seconds –
followed by a continuous
yellow light
If lights fail to turn on
If lights turn on and stay on
If voltage is between 10
and 14 volts
If voltage is outside of
range
Test complete.
Go to Step B.
Go to Step D.
Go to Step C.
Repair harness. Go to Step V.
VOLT
V ACOM
1
2
3
4
5
6
Fault Isolation Procedures
2-6
Power-Up Sequence Test, continued
Step C Procedure Condition Action
1. Key off.
2. Disconnect Operator Display
Unit from harness J1.
3. Key on.
4. Measure voltage between
sensor harness J2
pins 1 and 2.
If voltage is between 10 and
14 volts
If voltage is outside of range
Replace ODU. Go to Step V.
Replace sensor. Go to Step V.
VOLT
V ACOM
ODU P1
1
2
3
4
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