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Technical Bulletin
Hazard Alert Messages
Read and observe all Warning and Caution hazard alert messages in
this publication. They provide information that can help prevent
serious personal injury, damage to components, or both.
How to Obtain Additional Maintenance
and Service Information
This manual contains operating instructions for the Meritor WABCO
OnGuard™ Display. Figure 1.
Figure 1
Figure 1
For additional OnGuard™ service and maintenance information,
please refer to Maintenance Manual MM-0951, OnGuard™
Collision Safety System. To obtain publications or for additional
assistance, call ArvinMeritor's Customer Service Center at
800-535-5560.
Meritor WABCO publications are also available on our website:
www.meritorwabco.com
OnGuard™ Display Operating
TP-08122
1 Technical Bulletin
Issued 09-09
OnGuard™ Display
OnGuard™ is a forward-looking, radar-based adaptive cruise
control system with active braking. OnGuard™ is part of the Meritor
WABCO family of Collision Safety System products. The system is
fully integrated with Meritor WABCO anti-lock braking and Stability
Control Systems Electronic Control Unit (ECU). It works in
conjunction with the company's SmartTrac™ Stability Control
Systems which include Electronic Stability Control (ESC), Roll
Stability Control (RSC) and Automatic Traction Control (ATC).
OnGuard™ includes the following systems.
Collision Warning System (CWS)
Detects developing rear end collisions
Audible and visual alerts
Integral with both Adaptive Cruise Control with Active Braking
and Collision Mitigation System
Adaptive Cruise with Active Braking (ACC)
Supplements vehicle's cruise control
Attempts to maintain safe following distance
Supplies audible, visual and haptic alerts
Automatically decelerates vehicle using throttle, engine and
4007143a
foundation brakes
Automatically accelerates vehicle when lane is clear
Collision Mitigation System (CMS)
Detects developing rear end collisions
Supplies audible, visual and haptic alerts
Automatically disengages if driver takes appropriate action
Automatically decelerates vehicle using throttle, engine and
foundation brakes
If collision is unavoidable, intervention can minimize impact
Instructions
TP-08122
Issued 09-09
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Table of Contents
Summary of Contents for Meritor Wabco OnGuard Display
- Page 1 WABCO family of Collision Safety System products. The system is fully integrated with Meritor WABCO anti-lock braking and Stability How to Obtain Additional Maintenance Control Systems Electronic Control Unit (ECU). It works in conjunction with the company’s SmartTrac™...
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Page 2: Collision Warning System
The OnGuard™ Display provides the interface for the driver. Audible Figure 2 and visual warnings, as well as verification of correct system operation and faults, are communicated to the driver. The driver is able to monitor the status of target vehicles that the OnGuard™ system is tracking. -
Page 3: Adaptive Cruise Control
CWS: Collision Warning ACC: Object Detected If the lead vehicle is braking or traveling more slowly than the When a lead vehicle is detected in the lane ahead, the display driver’s vehicle, CWS warns of an impending collision by emitting an shows that ACC is on and and the radar is tracking a target at the urgent audible alert and displaying the collision warning symbol. - Page 4 If there is no communication between the OnGuard™ display and Figure 9 the radar sensor, an error screen indicating a broken data link to the 15 FT OnGuard™ radar sensor will show. The display background is red. Figure 11. Figure 11 15 MPH Set: 60 MPH DATA ERROR...
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Page 5: Target Distance
Display Control Figure 14 The display control includes alarm volume adjustment, LCD brightness and LCD contrast adjustment capability and U.S./metric RADAR ALIGNMENT unit conversion. The display will store the last display control Target Distance settings in non-volatile memory (remains stored in memory when turned off). -
Page 6: Component Test
CCVS Brake Switch Figure 15 The Cruise Control Vehicle Speed (CCVS) Brake Switch status is COMPONENT TEST shown as OFF when the brake pedal is released and ON when the brake pedal is pressed. Figure 18. Brake Pedal Position 37% The CCVS Brake Switch status is determined by the vehicle’s EBS Brake Switch conventional cruise control system (typically part of the engine... - Page 7 Cruise Control Enable (On/Off) Switch Figure 20 The Cruise Control Enable Switch status is shown as OFF when COMPONENT TEST cruise control is disabled and ON when cruise control is enabled. Figure 23. Clutch Switch NOTE: Some engine controllers report Cruise Control Enable Switch Park Brake Switch status as OFF if the switch was in the ON position when the ignition Accel Pedal Position...
- Page 8 Cruise Control Coast Switch Cruise Control Accelerate Switch The Cruise Control Coast Switch status is shown as OFF when the The Cruise Control Accelerate Switch status is shown as OFF when switch is not pressed and ON when the switch is pressed. the switch is not pressed and ON when the switch is pressed.
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Page 9: Software Rev
Software Version The Software Revision screen displays the Display Software version and the Radar Sensor Software version. The Software Revision background is green. Figure 29. Knowledge of the software versions of the OnGuard™ Radar and Display may be required in the event that the system requires service. - Page 10 Notes...
- Page 12 Information contained in this publication was in effect at the time the publication was approved for printing and is subject to 2135 West Maple Road change without notice or liability. Meritor WABCO reserves the right to revise the information presented or to discontinue the Troy, MI 48084-7121 USA production of parts described at any time.
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