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TP-08122

Issued 09-09

Technical Bulletin

OnGuard™ Display Operating 

Instructions

TP-08122

Issued 09-09

1 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

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

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 
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

Figure 1

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Summary of Contents for OnGuard Display

Page 1: ...ty 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 St...

Page 2: ...mopeds bicycles etc OnGuard will not track fixed or stationary objects When operating a vehicle always use safe driving techniques The driver is ALWAYS the most important factor in safe vehicle operat...

Page 3: ...l The cruise control set speed is shown The display background is blue Figure 6 Figure 6 ACC Object Detected When a lead vehicle is detected in the lane ahead the display shows that ACC is on and and...

Page 4: ...y error screen is on the display Figure 10 Figure 11 and Figure 12 Figure 10 If there is no communication between the OnGuard display and the radar sensor an error screen indicating a broken data link...

Page 5: ...ntroller Mass will reset to Not Available if the data is not available e g if the vehicle is not moving for several minutes Version 0 12 and version 0 23 software display 144 478 lb 65 535 kg when mas...

Page 6: ...tem typically part of the engine control electronics This is a different signal than EBS Brake Switch The two brake switch signals may not be the same at very low brake pedal stroke but should match i...

Page 7: ...t Cruise Control Enable Switch status as OFF if the switch was in the ON position when the ignition key was switched ON The Cruise Control Enable Switch may have to be cycled OFF then ON to get the Cr...

Page 8: ...when the switch is not pressed and ON when the switch is pressed Figure 27 NOTE It is common for one switch to be used for Resume and Accel functions Figure 27 Cruise Control Pause or Cancel Switch Th...

Page 9: ...n 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 sy...

Page 10: ...Notes...

Page 11: ......

Page 12: ...iability Meritor WABCO reserves the right to revise the information presented or to discontinue the production of parts described at any time Copyright 2009 TP 08122 ArvinMeritor Inc Issued 09 09 All...

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