Honda Accord 2008 Manual page 2716

07/11/02 10:07:05 61TA0000_230_0272
DTC B1780: HFL Switch (HFL TALK/HFL BACK
Buttons) Circuit Short
NOTE: If you are troubleshooting multiple DTCs, be
sure to follow the instructions in B-CAN system
diagnosis test mode A (see page 22-120).
1. Connect the HDS to the DLC.
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0), then start the
vehicle and turn the steering wheel back and forth
several times.
4. Check for DTCs with the HDS.
Is DT C B17 80 indicated?
YES − Go to step 5.
−
NO Intermittent failure, the system is OK at this
time.
5. Turn the ignition switch to LOCK (0).
6. Do the HFL switch test (see page 23-276).
Is the switch OK ?
YES − Go to step 7.
−
NO Replace the cable reel subharness (see page
17-25).
7. Turn the ignition switch to LOCK (0).
8. Remove the driver's dashboard lower cover
(see page 20-152).
9. Disconnect the HandsFreeLink control unit 28P
connector.
10. Disconnect the HFL switch 5P connector.
11. Check for continuity between HandsFreeLink
control unit 28P connector terminal No. 2 and body
ground.
HANDSFREELINK CONTROL UNIT 28P CONNECTOR
STRG SW
(LT BLU)
Wire side of female terminals
Is there continuity?
−
YES Repair short in the wire.
NO − Replace the HandsFreeLink control unit
(see page 23-277).
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＊０１
23-271