Honda Accord: B-CAN System Diagnosis Test Mode
B
Do this diagnosis if any of the control units are not communicating (Not Available is displayed in the HDS) as found by the B-CAN System Diagnosis Test Mode A (see page 22-134).
1. Using the HDS, select the system that has the symptom from the BODY ELECTRICAL menu.
2. Select DTCs, and then check for loss of communication DTCs.
Are any loss of communication DTCs indicated? YES-Go to step 3.
NO-Faulty driver's MICU; replace the driver's under-dash fuse/relay box, USA models (see page 22-86), Canada models (see page 22-87).
3. Do the power, ground, and communication part of the input test for the unit(s) not communicating with the HDS.

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.
1. Comp ...
B-CAN System Diagnosis Test Mode
C
Do this diagnosis if a component that is controlled by the
B-CAN system does not stop or turn off.
NOTE:
• If the component does not turn on, go to B-CAN
System Diagnosis Test Mode D {see p ...
See also:
Symptom Troubleshooting
The horn does not sound and/or the
headlights do not flash when the PANIC
button on the transmitter is pressed
NOTE: Before troubleshooting, check the B-CAN DTCs.
any DTCs are indicated, and trou ...
Handling the Unexpected
This chapter explains how to handle unexpected troubles. ...
Auto Door Unlocking
The auto door unlocking feature
has five possible settings:
The auto door unlocking is
deactivated all the time.
On A/T vehicles, the driver’s door
unlocks when you move the shift
lever to ...