Honda ACCORD HYBRID 2005 Service Manual page 1794

Multiplex Integrated Control System (MICS)
D T C T r o u b l e s h o o t i n g ( c o n t ' d )
DTC B1009: MICU Lost Communication with
the Combination Switch Control Unit (Wiper/
Washer Switch Message)
1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF and then back O N .
3. Check for DTCs using the HDS.
Is DTC B1009 indicated?
Y E S — G o t o step 4.
NO—Intermittent failure, the c o m b i n a t i o n switch
control unit is OK at this t i m e . Check for loose or
poor connections. If the connections are g o o d ,
check the battery condition (see page 22-71) and
the charging system. •
4. Check for DTCs of the gauge control module and
relay control module using the HDS.
Are DTCs B1156 and B1063 also indicated?
YES—Go to the Combination Switch Control Unit
Input Test (see page 22-122). •
NO—Check for an open in the c o m m u n i c a t i o n
circuit between the MICU and the c o m b i n a t i o n
switch control unit. If the circuit is OK, replace the
MICU. If the circuit is bad, repair the o p e n . B
DTC B1010: MICU Lost Communication
(Panic Message) with the Door Multiplex
Control Unit
1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF and then back O N .
3. Check for DTCs using the HDS.
Is DTC B1010 indicated?
Y E S — G o t o step 4.
NO—Intermittent failure, the door multiplex control
unit is OK at this t i m e . Check for loose or poor
connections. If the connections are g o o d , check the
battery condition (see page 22-71) and the charging
system. •
4. Check for DTCs of the relay control m o d u l e using
the HDS.
Is DTC B1059 also indicated?
YES—Go to the Door Multiplex Control Unit Input
Test (see page 22-120). •
NO—Check for an open in the c o m m u n i c a t i o n
circuit between the MICU and the door multiplex
control unit. If the circuit is OK, replace the MICU. If
the circuit is bad, repair the o p e n . B
22-112