General Information
27
Diagnostic Trouble Code (DTC)
Isolation Procedures
Component Code: 35, 36
(SA 42, SPN 639, FMI 9)
J1939 Data Link Diagnostic Trouble Code (DTC)
Overview
This code indicates that the VS-400 Forward Looking Radar (FLR) or the Driver Interface Unit (DIU) has detected that there is a J1939 data
link Diagnostic Trouble Code (DTC) condition.
Diagnostic Trouble Code (DTC) Detection
At power up and throughout operation, the FLR, DIU, and other devices continuously communicate with each other on the J1939 data link.
If there is a J1939 Diagnostic Trouble Code (DTC) condition, such as a corrupted message, incorrect message formatting, or the complete
loss of all J1939 data, the Diagnostic Trouble Code (DTC) is set.
• Code35,FMI9-TheDIUhasdetectedaJ1939DiagnosticTroubleCode(DTC)condition.
• Code36,FMI9-TheFLRhasdetectedaJ1939DiagnosticTroubleCode(DTC)condition.
Symptom
The Bendix
™
VORAD
®
VS-400 Collision Warning and the Bendix
™
SmartCruise
®
adaptive cruise control will fail to operate and the orange
DTC light on the Driver Interface Unit will be illuminated. If SmartCruise
®
adaptive cruise control is enabled the vehicle’s cruise control may
not operate while this Diagnostic Trouble Code (DTC) is active.
Possible Causes
• Loose,corroded,oropenJ1939datalinkconnections
• MalfunctioningdeviceontheJ1939datalinkcausingotherECU’stofailcommunications.
Repair Procedure
Active Diagnostic Trouble Code (DTC) Steps to Perform
Code 35, FMI 9 OR 1. Perform the "Component Power Supply Test" in the Appendix.
Code 36, FMI 9 2. Check the vehicle’s J1939 data link for poor connections, opens or short circuits.
3. Verify that all ECUs on the data link are functional and broadcasting data per the
manufacturer’s specifications. Note: Isolate any suspect malfunctioning ECU’s by
disconnecting them from the data link.
4. Perform Electrical Pretest to check data link connections to the VS-400
components.
5. Test Complete.
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