Honda Accord 2008 Manual page 2156

07/11/02 09:31:15 61TA0000_220_0126
Troubleshooting - 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 page 22-124).
• See the B-CAN system unit input/output index for a
list of input and output devices and the control units
that monitor the input and controls the output devices
(see page 22-114).
• Always cycle the ignition switch within 3 seconds
when prompted in the DTC troubleshooting
procedures in this section.
1. Check for DTCs by selecting the TEST MODE menu
from the HDS.
Are any DT Cs indicated?
YES − Go to B-CAN System Diagnosis Test Mode A
(see page 22-120).
NO − Go to step 2.
2. Turn off the switch that controls the malfunctioning
component.
3. Select DATA LIST from the TEST MODE menu, and
check the input of the switch that controls the
component.
Does the HDS indicate the switch is OF F ?
−
YES Go to step 4.
NO − Go to step 6.
4. In the DATA LIST, check the output signal of the
malfunctioning component.
Is the output signal OF F ?
YES − Go to step 5.
−
NO Replace the control unit that controls the
device that will not turn OFF.
5. Check the relay, if applicable, then check for a short
in the wire between the relay and the component,
the relay and control unit, or the component and
control unit.
Are the relay and the wire harness OK ?
YES − Replace the control unit that controls the
component that will not turn OFF.
NO − Replace the relay or repair the wire
harness.
6. Check the switch, then check for a short in the wire
between the switch and the control unit that
monitors the switch.
Are the switch and wire harness OK ?
YES − Replace the control unit that monitors the
switch.
NO − Replace the switch or repair the wire
harness.
ＴＡ０８Ａ００Ｊ０００５０６０００００ＦＡＡＴ０２
22-123