RDX L4-2.3L Turbo (2008)
Information Bus: Diagnostic Trouble Code Tests and Associated Procedures
B-CAN System Diagnosis Test Mode A
Troubleshooting - B-CAN System Diagnosis Test Mode A
Check the PCM for DTCs and troubleshoot PCM or F-CAN loss of communication errors first, then perform this diagnosis if the symptom is related to
the B-CAN system.
NOTE: Always cycle the ignition switch within 3 seconds when prompted in the DTC troubleshooting procedures in this Multiplex Control System.
1. Compare the symptom with 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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Door-open and tailgate-open indicators
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Horns (security and panic)
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Chimes (key-in, seat belt, lights-on, and parking brake)
-
Power window/moonroof timer
-
Wiper/washer
-
Security
-
Keyless entry
-
Power door locks
-
Key interlock
-
Dash light brightness
-
Immobilizer
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 to the data link connector (A), then turn the ignition switch ON (II).
3. From the BODY ELECTRICAL menu, select UNIT INFORMATION, and then select CONNECTED UNIT listed to see if the following control
units are communicating with the HDS.
-
MICU
-
Gauge control module
-
Immobilizer-keyless control unit
-
Climate control unit
-
Hands Free Link control unit (with navigation)
-
Acura link control unit (XM receiver) (USA models with navigation)
NOTE:
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If a unit is communicating with the HDS, DETECT will be displayed.
-
If a unit is not communicating or the vehicle is not equipped, "Not Available" will be displayed.
Are all control units communicating with the HDS?
