Honda ACCORD HYBRID 2005 Service Manual page 1826

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 B1128: Driver's Door Lock Switch Signal
Error
1. Clear the DTCs using the HDS.
2. Cycle the ignition switch t o OFF and then back O N .
3. Operate the driver's door look switch in the
LOCK and UNLOCK positons for 2 seconds.
4. Check for DTCs using the HDS.
Is DTC B1128 indicated?
Y E S — G o t o step 5.
NO—Intermittent failure. The driver's door lock
switch system is OK at this t i m e . Check pinfits and
connections. •
5. W i t h no driver's door lock switch 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
Lock Switch (LOCK) and Driver's Door Lock Switch
(UNLOCK) in the DATA LIST.
Are both information indicators OFF?
Y E S — G o t o step 7.
NO—Check the door lock s w i t c h . If the driver's door
lock switch is OK, faulty door multiplex control unit-
replace the power w i n d o w master switch. •
7. Push the driver's door lock switch in LOCK and
UNLOCK positions, and check the ON/OFF
information of t h e Driver's Door Lock S w i t c h
(LOCK) and Driver's Door Lock Switch (UNLOCK) in
the DATA LIST.
Is the Driver's Door Lock Switch (LOCK) (Driver's
Door Lock Switch (UNLOCK)) information
indicator ON when the door lock switch is pushed
in each switch position, and OFF when the door
lock switch is released?
YES—Substitute a known-good power w i n d o w
master switch. If the code is still present, replace
the M I C U . B
NO—Faulty door multiplex control unit; replace the
power w i n d o w master switch. •
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