Honda Accord 2008 Manual page 2153

07/11/02 09:31:15 61TA0000_220_0123
Multiplex Integrated Control System
Troubleshooting - B-CAN System Diagnosis Test Mode A
Check the ECM/PCM for DTCs and troubleshoot ECM/
PCM (see page 11-3) or F-CAN loss of communication
errors first, then do 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 section.
1. Compare the symptom with this list of B-CAN
related systems:
• Gauge control module
• Exterior lights
• Turn signals
• Entry light control
• Interior lights
• Safety indicators
• Horns (security and panic)
• 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
NO −
system with the symptom.
2. Connect the HDS to the data link connector (A),
then turn the ignition switch ON (II).
＊０１
22-120
−
Go to step 2.
Go to the system troubleshooting for the
A
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.
• Driver's MICU
• Passenger's MICU
• Door multiplex control unit
• Gauge control module
• Immobilizer-keyless control unit
• Climate control unit
• HandsFreeLink control unit USA models (with
navigation)
• Audio unit (with premium audio system)
NOTE:
• 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?
YES − Go to step 4.
NO − If any of the control units are not
communicating, go to B-CAN System Diagnosis
Test Mode B (see page 22-122). If all units are not
communicating or only the driver's MICU is
communicating, go to DTC U1280 troubleshooting
(see page 22-135).
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