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- Contents
- Table of Contents
- Troubleshooting
- Bookmarks
Table of Contents
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Table of Contents
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Section 1: Introduction
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Onguard™ and Onguardactive
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How Onguard™ and Onguardactive™ Work
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In-Cab Dash Display
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Operating Modes
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System Limitations
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System Components
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- Section 2: Diagnostics, Troubleshooting and Testing
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General Information
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Radar Sensor and Display Software Levels
- Error Screens and Diagnostic Trouble Codes
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Required Maintenance
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- Troubleshooting Guide
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TOOLBOX™ Software
- Onguard™ and Onguardactive™ Radar Diagnostic Trouble Code Table
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Radar Inspection and Preventive Maintenance
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Radar System Troubleshooting
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- Electrical System Troubleshooting
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Component Message Fault Troubleshooting
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Cruise Control System Troubleshooting
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Section 3: Component Replacement
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Radar Sensor
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Display Replacement
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Quick Links
- 1 Error Screens and Diagnostic Trouble Codes
- 2 Section 2: Diagnostics, Troubleshooting and Testing
- 3 Troubleshooting Guide
- 4 Onguard™ and Onguardactive™ Radar Diagnostic Trouble Code Table
- 5 Radar System Troubleshooting
- 6 Electrical System Troubleshooting
- Download this manual
See also: Maintenance Manual , Instruction and Installation Manual
OnGuard™ AND
OnGuardACTIVE™
COLLISION MITIGATION
SYSTEMS
MAINTENANCE MANUAL
Table ofContents
Advertisem*nt
Table of Contents
Troubleshooting
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Summary of Contents for WABCO OnGuard
- Page 1 OnGuard™ AND OnGuardACTIVE™ COLLISION MITIGATION SYSTEMS MAINTENANCE MANUAL...
- Page 2 Information contained in this publication was in effect at the time the publication was approved for printing and is subject to change without notice or liability. WABCO reserves the right to revise the information presented or to discontinue the production of parts described at any time.
- Page 3 Curvy or winding roads, roads with sharp turns. Curvy Use of OnGuard™ CMS cannot compensate for a driver that is roads can make it difficult for the OnGuard™ CMS radar to distracted, inattentive or impaired by fatigue, drugs or alcohol.
- Page 4 Serious personal injury or death, and/ or severe property damage can result. WARNING Once the driver applies the brake, the OnGuard™ CMS will be WARNING disabled and no longer provide braking intervention. It is the driver’s responsibility to maintain a safe speed and distance...
- Page 5 Failure to do so can result in serious personal injury or death, and/or severe property damage. WARNING OnGuard™ CMS may take a few moments to adjust to the System Malfunction Information selected speed. Adjust the speed as necessary to accommodate the current road, traffic and weather conditions.
- Page 6 Driver Information If OnGuard™ CMS is not functioning correctly or as expected, WARNING immediately have the OnGuard™ CMS inspected to correct the In order to reduce the potential danger of injuries caused issue. Whether or not the radar is working correctly, it is the during OnGuard™...
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Page 7: Table Of Contents
Contents Section 1: Introduction pg. 1 Overview OnGuard™ and OnGuardACTIVE™ How OnGuard™ and OnGuardACTIVE™ Work In-Cab Dash Display Operating Modes System Limitations System Components Section 2: Diagnostics, Troubleshooting and Testing General Information Radar Sensor and Display Software Levels Error Screens and Diagnostic Trouble Codes... -
Page 8: Section 1: Introduction
ACC is engaged or OnGuardACTIVE™ Work a collision mitigation event is detected. FDA cannot be turned off and is always active at speeds above 15 mph on OnGuard™ The OnGuard™ and OnGuardACTIVE™ systems detect objects systems, and from 15-17 mph on OnGuardACTIVE™ systems. -
Page 9: Operating Modes
1.5 seconds following interval possible rear-end collision. The OnGuard™ CMS is active above 15 (tailgating). This alert will end when the following distance is mph and will request brake application if deemed necessary. -
Page 10: System Limitations
System Components situations. Figure 1.5. The OnGuard™ CMS will not be active when the vehicle’s speed is Radar Sensor below 15 mph. If the OnGuard™ CMS detects a stationary object in The radar sensor is used to detect vehicles and obstacles for the the vehicle’s lane (such as a disabled car) it will provide an audible... - Page 11 The driver is able to monitor the status of lead vehicles that the OnGuard™ system is tracking. The functions of the OnGuard™ display may be integrated into a vehicle’s instrument panel. If the vehicle has an integrated display, please refer to your vehicle owner’s manual for correct operation.
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Page 12: Section 2: Diagnostics, Troubleshooting And Testing
DTC(s) is associated with the ACC functions or the CMS functions. Steering or suspension parts replacement, adjustment, or alignment Tire inflation or size change, and/or tire replacement Front body parts replacement or adjustment WABCO Maintenance Manual MM-1306 (Revised 08-18) -
Page 13: Troubleshooting Guide
NOTE: The system is sensitive to faults in other vehicle systems and will set a DTC as a reaction. As such, it is recommended that all faults in any other vehicle ECUs are diagnosed and repaired prior to diagnosing OnGuard™ and OnGuardACTIVE™ DTCs. WABCO Maintenance Manual MM-1306 (Revised 08-18) - Page 14 Radar not aligned. Perform Radar Sensor Service Radar Sensor Alignment using TOOLBOX™ Software. Ignition cycle Alignment may be required to clear the fault and restore system RADAR ALIGNMENT function. Radar Not Aligned Start Alignment Process 4010385a WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 15 Communication between the radar and display is Display Harness interrupted. Troubleshoot harnesses between radar Electrical Checks and display. Diagnose J1939 wiring harness, power and Radar Harness DATA ERROR and ground. Electrical Checks RADAR OFF-LINE 4010390a WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 16 OFF for at least two minutes, turn the ignition back ON, start radar sensor clearance. the engine and run at idle speed for one minute. OnGuard™ and The radar may not be aligned correctly. Refer to the Radar OnGuardACTIVE™ DTCs caused by other systems that have been Sensor Service Alignment procedure.
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Page 17: Toolbox™ Software
4010594a Retrieving DTCs: Figure 2.4 To display radar sensor DTCs, select the “Display” option from From the message box that appears, click on the OnGuard Radar the menu. Diagnostics button. Figure 2.5. From the pull-down menu, select “Diagnostic Trouble Codes”. - Page 18 Figure 2.9. The From the pull-down menu, select “Parameter Decoder”. “DTC Report” includes the extended DTC information. Figure 2.11. Figure 2.10. WABCO Maintenance Manual MM-1306 (Revised 08-18)
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Page 19: Onguard™ And Onguardactive™ Radar Diagnostic Trouble Code Table
Troubleshooting Sections in this manual for SPN/FMI DTCs that are readable using TOOLBOX™ Software. If the display shows a code not listed in the table, contact WABCO North America Customer Care at 855-228-3203.. for assistance. WABCO Maintenance Manual MM-1306 (Revised 08-18) - Page 20 Incorrect J1939 Actual Engine - Cycle the ignition to clear DTCs after engine servicing. Percent Torque data received in EEC1 Verify the engine ECM is functional and has correct software and message from engine parameters. WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 21 ERC1 message from engine retarder parameters. Incorrect J1939 Brake Pedal Position Use WABCO TOOLBOX™ Software PC Diagnostics to test the ABS data received in EBC1 message from Brake Pedal Pressure Sensor. Verify the correct radar part number is installed on the vehicle.
- Page 22 Verify the ABS ECU is connected to the J1939 network and is (EBC2) message from the ABS not functional. received or intermittent Verify correct ABS part number is used. Cycle ignition to clear DTCs after ABS servicing. WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 23 Cycle ignition to clear DTCs after ABS servicing. 1121 Incorrect J1939 EBS Brake Switch data Use WABCO TOOLBOX™ Software PC Diagnostics to test the ABS received in EBC1 message from ABS Brake Pedal Pressure Sensor. Verify the correct radar part number is installed on the vehicle.
- Page 24 If this is the only active DTC, instruct the dealer to verify with the Adaptive Cruise Control system. engine manufacturer that the engine parameters are set correctly. Check any optional components that are connected to the J1939 network that may cause a message issue. WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 25 197120 Bootloader error usually caused when Run the software update again. there is an issue during a radar Is usually seen in WABCO TOOLBOX™ Software PC Diagnostics software update. with SPN 197120 FMI 31 on the display. 516096 J1939 Cruise Control/Vehicle Speed 1 Verify the correct radar part number is installed on the vehicle.
- Page 26 Verify the engine ECM has the Adaptive Cruise Control parameter enabled. 516499 Malfunction in the Anti-Lock Braking Use WABCO TOOLBOX™ PC Diagnostics to test the Anti-Lock System caused the system to be Braking System. temporarily disabled Verify the correct radar part number is installed on the vehicle.
- Page 27 Perform Service Alignment. left. This code may indicate the radar installation was damaged by impact (frame cross-member, bumper, radar bracket, etc.). This code may also indicate a Radar Service Alignment was not completed following axle alignment. WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 28 Motor azimuth: Blockage detected Verify no visible/physical damage to radar. Check power ground and load test at the radar harness connector. If fault persists after completing previous checks and repairs, this may indicate the radar has failed. WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 29 They provide information that can help prevent instructions. serious personal injury, damage to components, or both. WARNING To prevent serious eye injury, always wear safe eye protection when you perform vehicle maintenance or service. WABCO Maintenance Manual MM-1306 (Revised 08-18)
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Page 30: Radar Inspection And Preventive Maintenance
Radar Inspection The OnGuard™ and OnGuardACTIVE™ CMS sets a DTC whenever NOTE: It is recommended to perform the radar inspection process messages from the other control modules on the J-1939 network every time normal preventive maintenance is performed on the are incomplete, not plausible, or not received. - Page 31 Do not does not track vehicles or operate until the Service Alignment remove the radar. procedure is completed. Verify the fascia is correctly installed. WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 32 (par) file or Fleet Data Report using TOOLBOX software. Email D. With the TOOLBOX™ Software connected, initiate the the files to OnTrac at: OnTrac@wabco.com with the case service alignment to begin the alignment process. number (if known) and DTC Report in the subject line.
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Page 33: Electrical System Troubleshooting
Radar Connector Pinout The radar harness is connected to the radar sensor using an eight-pin connector. Figure 2.18. 4011862a Figure 2.19 WABCO Maintenance Manual MM-1306 (Revised 08-18) -
Page 34: Component Message Fault Troubleshooting
DTC. Verify that the DTC has For resistance measurements, the vehicle battery must be been cleared. disconnected and the ignition must be OFF. Measurements should read as follows: WABCO Maintenance Manual MM-1306 (Revised 08-18) -
Page 35: Cruise Control System Troubleshooting
Verify with the OEM or engine manufacturer that the correct engine parameters are programmed to accept TSC1 messages from the ACC. Reprogram the engine parameters if not correct. Refer to the vehicle manufacturer’s service manual for further instruction. WABCO Maintenance Manual MM-1306 (Revised 08-18) -
Page 36: Section 3: Component Replacement
Refer to the OEM instructions RADAR for correct procedures. FASCIA Make sure the ignition is in the OFF position. Disconnect the wiring connector from the display. Figure 3.2. 4007305a Figure 3.1 WABCO Maintenance Manual MM-1306 (Revised 08-18) - Page 37 Remove the display. Save the hardware for installation of the new display. Reinstall the new display. Connect the wiring connector to the new display. Reassemble the instrument cluster paneling according to the OEM procedures. WABCO Maintenance Manual MM-1306 (Revised 08-18)
- Page 38 Partnering with the transportation industry as it maps a route toward autonomous driving, WABCO also uniquely © 2018 WABCO North America – All rights reserved – MM1306 / 08.2018...
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