Charging Circuit Troubleshooting - Honda Civic Service Manual

2002-2003 hatchback
Hide thumbs Also See for Civic:
Table of Contents

Advertisement

Gharging System
Charging Circuit Troubleshooting
lf the charging system indicator does not come on or
does not go off, or the battery is dead or low, test these
items in the order listed below:
Battery (see page 22-50)
Charging system indicator
Alternator and regulator circuit
Alternator control system
Charging System Indicator Test
1 . T u r n t h e i g n i t i o n s w i t c h O N { l l ) .
Does the chatging system indicator come on?
YES Go to step 2.
NO Go to step 3.
2. Start the engine.
Does the charging system indicator go off?
YES-Charging system indicator circuit is OK. Go
to the Alternator and Regulator circuit Test. t
NO-Go to step 3.
3. Turn the ignition switch OFF.
4. Troubleshoot the multiplex control system (see
page 22 172).
ls the multiplex control system OK?
YES Go to step 5.
NO Check the multiplex control system as
indicated by the diagnostic trouble code (DTC) (see
s t e p 8 o n p a g e 2 2 - 1 7 2 ) . 1
5. Disconnect the engine wire harness 6P connector
from the starter sub harness 6P connector.
4-22
\ " 4
6. Measure the voltage at the No. 3 terminal of the
e n g i n e w i r e h a r n e s s 6 P c o n n e c t o r w i t h t h e i g n i t i o n
s w i t c h O N { l l ) .
ENGINE WIRE HARNESS 6P CONNECTOR
IBLK/YEL}
Wire side of female terminals
ls there battery voltage?
YES-Go to step 7.
N O - C h e c k f o r a b l o w n N o . 4 { 1 0 A ) f u s e i n t h e
under-dash fuse/relay box. lf the fuse is OK, repair
open in the wire between the alternator and the
under-dash fuse/relay box. I
Turn the ignition switch OFF.
Disconnect engine control module (ECM) connector
B ( 2 4 P ) .
Check continuity between the ECM connector
t e r m i n a l B ' 1 0 a n d e n g i n e w i r e h a r n e s s 6 P c o n n e c t o r
t e r m i n a l N o . 6 .
?
7 .
8 .
9 .
A C G L { W H T / B L U )
E N G I N E W I B E
HARNESS
6 P
L ( W H T / B L U I
W i r e s i d e o f f e m a l e t e r m i n a s
ls there continuity?
YES Go to step 10.
NO-Repair open in the wire between the
a l t e r n a t o r a n d t h e E C N 4 . I
ECM CONNECTOB A (24P)

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

2002 civic2003 civic

Table of Contents