Honda Civic Service Manual page 1753

r
Troubleshooting
t
)
Self-diagnostic Procedures
The self-diagnostic function of the SRS system allows it to locate the causes of system
problems and to store this informa'
I
tion in memory. For easier troubleshooting, this data can be retrieved via a data link circuit
l
. When you turn the ignition switch ON (ll), the SRS indicator will come on. ll it goes off after six seconds. the system is
n o r m a l .
.
lf there is an abnormality, the system locates and defines the problem, stores this information in
memory, and turns
the sRS indicator light on. The data will remain in the memory even when the ignition switch
is turned off or if the bat-
tery is disconnected.
o when you connect the scs service connector to the service check connector
(2P), and turn the ignition switch oN (ll),
t h e s R s i n d i c a t o r | i g h t w i | | i n d i c a t e t h e d i a g n o s t i c t r o u b | e c o d e ( D T C ) b y t h e n u m b e r o f b | i n k s .
. After reading and recording the DTC. proceed with the troubleshooting for this code'
Precauiions
. U s e o n | y a d i g i t a | m U | t i m e t e r t o c h e c k t h e s y s t e m ' | f i t , s n o t a H o n d a m u | t i m e t e r , m a k e s u r e i t s o u t p u t i s l 0 m A ( 0 .
o r | e s s w h e n S w i t c h e d t o t h e s m a | | e s t v a | u e i n t h e o h m m e t e r r a n g e , A t e s t e r w i t h a h i g h e r o U t p U t c o u l d d
airbag circuit or cause accidental airbag deployment and possible injury'
r when-ever the ignition switch is oN (ll). or has been turned oFF for lessthan three minutes,
be careful nottobumpthe
SRS unit; the airbags could accidentally deploy and cause damage or injuries
. Before you ,"n1ou" th" SRS main harness, disconnect the driver's airbag connector
(and the front passenger's airbag
connector).
. Make sure the battery is sufficiently charged {see section 23}. lf the battery is dead or low, measuring
valLles won t be
correct.
.
Do not touch a tester probe to the terminals in the sRS unit or harness connectors,
and do not connect the terminals
with a jumper wire. Use only the backprobe set or the special tools'
For backprobing spring-loaded lock type connectors, refer to page 24-9'
Reading the DTC
when the SRS indicator light is on, read the DTC using one of these methods:
A. Connect the Honda PGM Tester to the 16P Data Link Connector {DLC), and
follow the tester's prompts lf the tester
i n d i c a t e s n o D T c , D T c g - 1 o r D T c 9 - 2 , d o u b | e - c h e c k b y j u m p i n g t h e s e r v i c e c h e c k c o n n e c t o r a n d w a t c h i n g t
indicator light (see next Page)
HONDA PGM TESTER
DATA LINK CONNECTOR Il6PI
l ,
24-13