RL V6-3.5L (2007)
Information Bus: Diagnostic Trouble Code Tests and Associated Procedures
B-CAN System Diagnosis Test Mode A
Troubleshooting - B-CAN System Diagnosis Test Mode A
NOTE: AcuraLink can be used to easily check for B-CAN line failure.
Do this diagnosis first if the symptom is related to the B-CAN system.
NOTE: Always turn the ignition switch within 3 seconds when prompted in the DTC troubleshooting procedure.
1. Check the symptom against this list of B-CAN related systems:
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Gauge control module
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Exterior lights
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Turn signals
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Entry light control
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Interior lights
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Safety indicators
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Rear window defogger
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HandsFreeLink
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Horns (security and panic)
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Chimes (key, seat belt, lights-on and parking brake)
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Power windows
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Power window/moonroof timer
-
Wiper/washer
-
Security
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Keyless entry
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Power door locks
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Climate control
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Key interlock
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Dash light brightness
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Driving position memory
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Keyless access
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OnStar ('05-06 models)
-
XM radio
Is the symptom related to the B-CAN system?
YES - Go to step 2.
NO - Go to the system troubleshooting for the system with the symptom.
2. Connect the HDS, then turn the ignition switch ON (II).
3. From the BODY ELECTRICAL SYSTEM SELECT menu, select UNIT INFORMATION, and then select CONNECTED UNIT listed to see if it
is communicating with the HDS.
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MICU
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Gauge control module
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Combination switch control unit
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Relay control module
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Power seat control unit
-
HandsFreeLink control unit
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Driver's MPCS unit
-
Adaptive front lighting control unit
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OnStar control unit ('05-06 models)
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AcuraLink control unit (XM receiver)
-
Keyless access control unit
-
Climate control unit
NOTE:
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If the unit is communicating with the HDS, DETECT will be displayed.
-
If the unit is not communicating, "Not Available" will be displayed.
Are all control units communicating with the HDS?
YES - Go to step 4.
