Honda ACCORD HYBRID 2005 Service Manual page 1772

Multiplex Integrated Control System (MICS)
T r o u b l e s h o o t i n g - B - C A N S y s t e m D i a g n o s i s T e s t M o d e 1 a n d T e s t M o d e 2
( w i t h o u t t h e H D S ) ( c o n t ' d )
DTC
Cause
1 The MICU cannot receive signals f r o m
the bus c o m m u n i c a t i o n line.
2
The MICU cannot receive signals f r o m
the relay m o d u l e c o m m u n i c a t i o n line.
3 The MICU cannot receive signals f r o m
the power w i n d o w c o m m u n i c a t i o n
line.
4 The MICU cannot receive signal f r o m
the c o m b i n a t i o n switch
c o m m u n i c a t i o n line.
5 The MICU cannot receive signals f r o m
the gauge control m o d u l e .
8. Check for B-CAN DTCs indicated by the gauge
control m o d u l e while still in Test M o d e 1.
Are any DTCs indicated?
Y E S — G o t o step 9.
NO—Go to step 11.
9. Record all DTCs and sort t h e m by type using the
DTC Troubleshooting.
10. T r o u b l e s h o o t the DTCs in the f o l l o w i n g order:
• Battery voltage DTCs
• Internal error DTCs
• Loss of c o m m u n i c a t i o n DTCs (begin w i t h the
lowest number first; for example, if B1006 and
B1059 are retrieved, troubleshoot B1006 first)
• Signal error DTCs
11. Remove the MPCS service connector f r o m the
under-dash fuse/relay box socket for 5—10 seconds,
then re-insert it.
NOTE: If the MPCS connector is disconnected for
too short or too long of a t i m e , or the ignition
switch is turned OFF, the system w i l l return to Test
Mode 2.
MICU
Item
Driver's door switch (OPEN)
Front passenger's door switch (OPEN)
Left rear door switch (OPEN)
Right rear door switch (OPEN)
Trunk latch switch (OPEN)
Front passenger's door lock knob switch
(UNLOCK)*
Left rear door lock knob switch (UNLOCK)
Right rear door lock knob switch (UNLOCK)*
Audio-HVAC display m o d u l e security g r o u n d
(disconnected)
Driver's seat belt switch (unbuckled)
Brake pedal position switch
(ON; brake pedal pressed)
Passenger's door lock switch
(LOCK/UNLOCK)
* The front passenger's and right rear door lock
knob switches must be in the locked position
w h e n beginning the test.
RELAY CONTROL MODULE
Item
Windshield w i p e r switch (AUTO STOP/
PARK)
Hood switch (open)
A/C pressure switch/thermal protector (A/C
ON)
COMBINATION SWITCH CONTROL UNIT
Item
Turn signal switch (LEFT)
Turn signal switch (RIGHT)
Combination light switch (ON; each position)
Dimmer switch (ON)
Passing switch (ON)
Windshield w i p e r switch (ON)
Intermittent wiper dwell t i m e r
Windshield washer switch (ON)
12. In the list of circuits that can be checked in Test
Mode 2. Operate the switch that is most closely
related to the p r o b l e m . If the circuit is OK, the
ceiling light will blink once. If the circuit is faulty,
there w i l l be no indication.
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