Honda ACCORD HYBRID 2005 Service Manual page 1824

Keyless/Power Door Locks/Security System
D T C T r o u b l e s h o o t i n g ( c o n t ' d )
DTC B1127: Driver's Door Key Cylinder
Switch Signal Error
1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF and then back ON.
3. Operate the driver's door key cylinder in the LOCK
and UNLOCK positions for 2 seconds.
4. Check for DTCs using the HDS.
Is DTC B1127 indicated?
Y E S — G o t o step 5.
NO—Intermittent failure. The driver's door key
cylinder system is OK at this t i m e . Check pinfits and
c o n n e c t i o n s . •
5. W i t h no driver's door key cylinder operation, select
SECURITY f r o m the HDS, and enter the DATA LIST.
6. Check the ON/OFF i n f o r m a t i o n of the Driver's Door
Key Cylinder Switch (LOCK) and Driver's Door Key
Cylinder Switch (UNLOCK) in the DATA LIST.
Are both information indicators OFF?
Y E S — G o t o step 7.
N O — G o t o step 10.
7. Turn the driver's door key cylinder to the LOCK and
UNLOCK positions w i t h the ignition key and check
the ON/OFF i n f o r m a t i o n of the Driver's Door Key
Cylinder Switch (LOCK) and Driver's Door Key
Cylinder Switch (UNLOCK) in the DATA LIST.
Is the Driver's Door Key Cylinder Switch (LOCK)
(Driver's Door Key Cylinder Switch (UNLOCK))
information indicator ON when the key cylinder is
in the LOCK (UNLOCK) position, and OFF when
the key is returned to the neutral position?
YES—Faulty door multiplex control unit; repl
the power w i n d o w master switch. •
N O — G o t o step 8.
lace
8. Disconnect the driver's door key cylinder switch 3P
connector.
9. Check for continuity between the No. 3 (LOCK) and
No. 1 (UNLOCK) terminals of the driver's door key
cylinder switch 3P connector and the No. 8 (LOCK)
and No. 21 (UNLOCK) terminals of the power
w i n d o w master switch 23P connector.
DRIVER'S DOOR K E Y CYLINDER SWITCH
3P C O N N E C T O R
Terminal side of male t e r m i n a l s
1 2 3
Lb dJ O ) L O C K
(WHT/RED)
1 2 3 4
/
6 7 8 9 10
11 12 13 14
/
16 17 18 19 20 21 22 23
U N L O C K (WHT)
POWER WINDOW M A S T E R SWITCH
23P C O N N E C T O R
Wire side of f e m a l e t e r m i n a l s
Is there continuity?
YES—Faulty driver's door key cylinder switch. •
NO—Repair an open in the WHT/RED (LOCK) or
WHT (UNLOCK) w i r e . B
10. Disconnect the driver's door key cylinder switch 3P
connector.
11. Check the ON/OFF i n f o r m a t i o n of the Driver's Door
Key Cylinder Switch (LOCK) and Driver's Door Key
Cylinder Switch (UNLOCK) in the DATA LIST.
Are both information indicators OFF?
YES —Faulty driver's door key cylinder s w i t c h . •
NO—Go to step 12.
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