Honda ACCORD HYBRID 2005 Service Manual page 1827

• BODY •
DTC B1129: Driver's Door Lock Knob Switch
Signal Error
1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF and then back O N .
3. Operate the driver's door lock knob switch in the
LOCK and UNLOCK positions for 2 seconds.
4. Check for DTCs using the HDS.
Is DTCB1129 indicated?
Y E S — G o t o step 5.
NO—Intermittent failure. The driver's door lock
knob switch system is OK at this t i m e . Check pinfits
and connections. •
5. Select SECURITY f r o m the HDS, and enter the
DATA LIST.
Check the ON/OFF information of the Driver's Door
Lock knob Switch (LOCK) and Driver's Door Lock
knob Switch (UNLOCK) in the DATA LIST.
Is the Driver's Door Lock knob Switch (LOCK)
information indicator ON and Driver's Door Lock
knob Switch (UNLOCK) information indicator
OFF with the door lock knob switch in LOCK
position, and is the Driver's Door Lock knob
Switch (LOCK) information indicator OFF and
Driver's Door Lock knob Switch (UNLOCK)
information indicator ON with the door lock knob
switch in UNLOCK position?
YES —Substitute a known-good power w i n d o w
master switch. If the code is still present, replace
the MICU. •
N O — G o t o step 6.
6. Disconnect the driver's door lock knob switch 3P
connector.
7. Check the ON/OFF information of the Driver's Door
Lock knob Switch (LOCK) and Driver's Door Lock
knob Switch (UNLOCK) in the DATA LIST.
Are both information indicators OFF?
YES—Faulty driver's door lock knob switch. •
N O — G o t o step 8.
8. Check for continuity between the No. 2 (LOCK) and
No. 1 (UNLOCK) t e r m i n a l s of the driver's door lock
knob switch 3P connector and body g r o u n d .
D R I V E R ' S DOOR LOCK KNOB SWITCH
3P C O N N E C T O R
UNLOCK
(WHT/BLK)
LOCK
( Y E L / R E D )
W i r e side of f e m a l e t e r m i n a l s
Is there continuity?
Y E S - R e p a i r a short in the YEL/RED (LOCK) or
WHT/BLK (UNLOCK) w i r e . B
NO—Go to driver's door lock knob switch test
(see page 22-132). If the driver's door lock knob
switch is OK, the door multiplex control unit is
faulty; replace the power w i n d o w master switch.
22-145