Acura 2002 RSX Service Manual page 69

Gharging System
1 0 .
Charging Circuit Troubleshooting (cont,d)
Check continuity between the ECM/pCl\4 connector
t e r m i n a l 8 1 0 a n d b o d y g r o u n d .
€CM/PCM CONNECTOR B I24P)
2 3 4 t 5
6
I
I
10 13
5
1 7 1 8
n
21
22 23 24
ACGL IWHT/BLU}
Wire side of female terminals
Isthere continuity?
YES Repair a short in the wire between the
alternator and the ECM/pCM. t
NO - Go to alternator and regulator test.
Charging System Indicator Test (K20A2
engine)
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 ) .
Does the charging system indicator come on?
YES Go to step 2.
NO Go to step 3.
2. Start the engine.
Does the charying system indicator go oll?
YES Charging system indicator circuit is OK.I
NO Go to step 3.
3. Turn the ignition switch OFF.
4. Troubleshoot the multiplex control system (see
page 22-1751.
ls the multiplex control system OK?
YES Go to step 5.
NO Check the mulliplex control system as
indicated by the DTC (see step I on page 22_'tjSl.a
5. Disconnect the starter subharness 6p connector.
4-28
U
6 . M e a s u r e t h e v o l t a g e a t t h e N o . 1 t e r m i n a l o f t h e
starter subharness 6P connector with the ignition
s w i t c h O N ( l l ) .
STARTER SUB-HARNESS 6P CONNECTOB
IG {BLK/YEL)
Wire side of female terminals
Is there battety voltage?
YES Go to step 7.
NO Check for a blown No.4 fi0A) fuse in the
under-dash fuse/relay box. lf the fuse is OK, repair
an open in the wire between the alternator and the
under-dash f use/relay box. I
7, Turn the ignition switch OFF.
8. Disconnect EClvl conneclor B (24p).
9. Check continuity between the ECM connector
terminal 810 and starter subharness 6p connector
t e r m i n a l N o . 4 .
ECM CONNECTOR B (24PI
I
2 l s
4
5 l
6 1
8 I 10
3 ,/
t c
1 8
' l n
21 23
CGL {WHT/BLU}
STARTER SUB
6P CONNECIC
l
2 3
4 5
ARTER SUB-HARNESS
CONNECIOR
L (WHT/BLU)
Wire side of femaleterminars
ls there continuity?
YES Go to step 10.
NO Repair an open in the wire between rne
a l t e r n a t o r a n d t h e E C M . I