Ckp HONDA CIVIC 1996 6.G Service Manual

rl
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
norma 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),
thesRsindicator|ightwi||indicatethediagnostictroub|ecode(DTC)bythenumberofb|inks.
. After reading and recording the DTC. proceed with the troubleshooting for this code'
Precauiions
.Useon|yadigita|mU|timetertocheckthesystem'|fit,snotaHondamu|timeter,makesureitsoutputisl0mA(0.01A)
or|esswhenSwitchedtothesma||estva|ueintheohmmeterrange,AtesterwithahigheroUtpUtcoulddamagethe
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
indicatesnoDTc,DTcg-1orDTc9-2,doub|e-checkbyjumpingtheservicecheckconnectorandwatchingthesRS
indicator light (see next Page)
HONDA PGM TESTER
DATA LINK CONNECTOR Il6PI
l,
24-13

)
From page 24-34(A)
SRS MAIN HARNESS I8P CONNECTOR
(B)
To page 24-36
1)
Wire sidg of lemale terminals
DASHBOARD WIRE HARNESS
5P CONNECTOR
ic)To page 21'31
DASHBOARD WIRE HARNESS
5P CONNECTOR
c508
t of lemale
(cont'd)
24-35
SRS MAIN HARNESS
Chock iho SRS unit:
Connect the SRS main harness 18P connector terminals No'
6 and No. 3 with a jumper wire and backprobe
Doos tho SRS indicator light go off?
Faulw SRS unit or poot co tact at the SRS ftain htmes!
18P connoctor; chack the connagtot.
ll tha connoctor b OK roplaca lho SRS unit'
oid tu3e No. 23 t10 A) blow?
Chcck for e short to ground in th. SRS indicator lighi cir-
cuh:1. Turn the ignition switch OFF
2. Disconneit the dashboard wire harness 5P connector
from the gauge assembly.
3. Check res-ista;ce between the No l terminai ofth€dash-
board wire harness 5P connector and ground There
should be '1 M0 or more.
Short to glound in th. gaugs aslomblY; .6plac' th' gtug'
JUMPEB WIRE
o!

Ground-to-Components I ndex
f.,lONOTE: All ground wires are BLK unless otherwise noted.
GroundPageComponents or Circuit Grounded
Battery (BLKYEL)
Steering pump bracket
t+-rg ITransmission housing
l
G101
(-1)
G101
(-2)
14-2
and
14-3
ano
14-1
Powertrain or engine control module (PG1 and pG2 are BLK: LG1 and LG2 are
BRN/BLK), EGR control solenoid valve (CW, EGR valve and lift sensor (Dt6yS enginewith M,/T), Engine coolant temperature switch, pGM-Fl main relay, power steeringpressure switch (USA), Primary HO2S (D16Y5 engine with l\/,/T), Vehicle speed sensor,VTEC pressure switch (D16Y5/D16Y8 engines), CKF sensor (BRN/BLK), Transmission
control module (CYf) (Pc1 is BLK: LG1 is BRN/BLK)
Shielding betvveen the PCM or ECM and these components (all have BRN/BLK wires):
CKF sensor, TDC/CKP/CYP sensor. Primary and secondary heated oxygen sensors.
Knock sensor (CWDl6YB engine), Mainshaft speed sensor (AiT except CVT),
I Countershaft speed sensor (A/T except CVf)
Shielding between the TCM and these components (CVT) (all have BRN/BLK wires):
Drive pulley speed sensor, Driven pulley speed sensor, Secondary gear shaft
speed sensor
Powertrain or engine control module (PG1 and pG2 are BLK; LG1 and LGz are
BRN/BLK), EGR control solenoid valve (D16Y5 engine), EGR valve (Dt685), Engine
coolant temperature switch, Fuel pressure regulator shut-off solenoid valve (D1685),
PGM-FI main relay, Power steering pressure switch (USA), Vehicle speed sensor, VTECpressure switch (All except D16Y7 engine), CKF sensor (A

except 81642) (BRN/BLK)
Shielding between the PCM or ECM and these components (all have BRN/BLK wires):
CKF sensor, TDC/CKP/CYP sensor, Primary and secondary heated oxygen sensors,
Knock sensor (All except D16Y7 engine), i/ainshaft speed sensor (Arf except CW),
Countershaft speed sensor (A,/T except CVf), Drive pulley speed sensor (CW), Drivenpulley speed sensor (CVT), Secondary gear shaft speed sensor (CVf)
I Badiator fan motor, Right front parking/turn signat tight, Right headtight
G20214-4I Cruise control actuator, Left front parking/turn signal lights, Left headlight, Rear window
I washer motor, Windshield washer motor, Washer fluid level switch (,99-'00 Canada)
G401| +-o
and
14-7
Accessory power socket, Brake fluid level switch, Clutch interlock switch (M/T), Clutchswitch (lillT with cruise/D16Y5 engine with MfD, Combination wiper switch (Z wires),
Cruise control main switch, Cruise control unit, Dash lights brightness controller, Data
link connector, Daytime running lights control unit (Canada), Gauge assembly, Horn('96-'97 models), Integrated control unit, Interlock control unit (ArI), Keyless door lock
control unit ('99-'00 models with keyless), Moonroof close and open relays, Moonroof
switch, Park pin switch (A/r), Power window relay, Rear window defogger relay, Rear
window defogger switch ('96-'98 models), Steering lock, Stereo radio tuner (,96-,98
USA: LX, EX, and HX), Turn signal/hazard relay, Windshield wiper motor.....plus
everything grounded through G402
6-6

----" A/T -----t
DRIVEN PULLEY , ^.,.
;iftTBilis'".f l5Ftr,.""_
co'rinienixnn '. Pase 23'2
SPEED SENSOR ; .'-\.SHIELD 'F--.1
TDC/CKP/CYPSENSORSHIELDPage 20
ll
r_:.-i
23-13
t1
23- l4
tl
PRIMARY SECONDARYHO2S HO2SSHIELD SHIELDPages 23-8, Pages 23-9,23-10. and 23-11. and
--- CW ----.
TRANSMISSION ;CONTROLMODULE(TCM) ,Page 39-5 :PHO|O 121vlEw 69r____1 ,
tt:
tt:L----J,
. D16Y8engine
SECONDARY .
HO2S :SHIELD ;Page 23-11
l. - -..1 ;
tt:(D16Y/i D15Y8)Page 39-1
l.--.1
1l
r:--iBFN/BLKARN/BLK
A4
6FN/BLK' EFN/BI
i i srco"oo"t :' I GEAR SHAFT
I I Or MAtN!'tAt I. II SPEED SENSOR '
CW. - D16Y8 -, engine: N SENSoR SHTELD ,
i !i?il3li*u,, i
CWSHIELD :Page39-4,
CRANK-SHAFTSPEEDFLUCTU-ATION(cKF)SENSORPage 23-2
tl
ll
;I;..
26
i xNocx' SENSOR, (KS)' SHIELD
, Fage zJ-5
: F--.1
:ll
iilr-:i
----:.--------:
c442(Terminals 18-20)
c10.1 PHofo 125\HOTO 21 VIEW 54vtEw 29
'----- cw ----'
DRIVE
BFN/BLK
PULLEY :SPEEDSENSORSHIELDPage 39-4 :
1.---{ :I t;
cl30Oermlnal8'l-10)
vtEw 52
14-',

PRIMARYH02SSHIELDPage 24-7 ,24-8, ol24 10
tl
r_i
.--- D1685engine --.
' TNJECTOR I: CoNTROL ;; MoDULE ,, Page 25-1 ,t PHO\O 1aa :I vtEw 77
i r-- --r I,ll:
ill;
816l€I.--- D16Y8I englnes i. SECONDARYI Ho2s SHTELD :, Pages 23-11 I' and 24-11
I z-r; l.--.1 :
c131
(c101 D16Bs)
. ORIVE PULLEY
: SPEED sENsoR I. SHIELD ,' Page 39-12
l---:
: 1.--,1 ;
:l | :
c102
CKFSENSORSHIELDPage 24 2
tl
\..
BFN/BLK
------_I
SECONDARYGEAR SHAFT :SENSOR SHIELD ;(D16Y5)P.^a 'lO,1 ,oifu-alisirrrSPEED SENSOR :SHIELD :(016Y7/D16Y8)Page 39-9
F--.1
tl
rJii
t
rDc/cKP/CYPSENSORSHIELDPage 2O-2
tl
\,.
T
""","a* |
i
___r_
14-3

Ground Distributioh (conrd)
)
- G401
NOTE:
To G402on page14-5.
WINOSHIELOWIPERMOTORPage 91-1
DAYTIMERUNNINGLIGHTS
99.!rRoL cLUrcHuNr I swtTcH:?99^ Pases 23-5and 34-3vtEw 66 PHA|A 55
I
I
INJECTORCONTROLMODULEPage 25-1
I
I
3
. Wires shown without color codes are black.
o On Coupe and Sedan models, G401 is represented by ring terminals.
tl
tl
INTER.LOCK6611p99 PARKUN|T PINpaoe j38 SWITCHor ige_t Page 138PHoro6s of 138-1vtEw 26 PHOfO /7r-1 r-'t
tttl
CLUTCHINTER-LOCKSWITCHPage 21-2
ll
ll
ttl
rll
I
Itttl
'Ll;
I
n
t
M/T with 01685Cruise/D16Y5enginewith M/T
BRAKEFLUIDLEVELswtTcHPage 71ot 71-1
tl
tl
DOOR LOCK .CONTROLSTEERINGLOCKPage /3
tl
tl
UNITPage 130-12 ;
ttl
tt:
models
RNte 40
I
I
(
I
I czor
l'i1l?,
'97 mo
HORNPage 4
I
I
NFnl
s 9c.Plv'
BLK/RED
t
IJ;--
',f-l
DATA LINKCONNECTOR(DLC)Pages 23-4,24-4,25 4,44-1, and 47
30
14-6
G401

lgnition System
- All '96-'98 Models except Dl685; '99-'00 Dl6Y5 with M/T
NOTE: For Service Check Connector details, see page 23-3.
@
CKP CYPsensor sensorinput input(CKPP) (CYPP)
X,*.,
rDcsensorInpur(IDCP)
POWERTRAINor ENGINECONTROLMODULE(PCM or ECM)
POWERTRAINor ENGINECONTROLMODULE(PCM or ECM)
xr*"
BLKI/EL
I
I
BLK/YEL
I See Power
H Distribution,
J__99'"'_
I
I
I
I
I
I
UNOER-OASHFUSE/RELAYBOX
"a*,telfi
u I """%t'3.
,rrrr.iFiFx".-,''ril'fi :T-DASH ll pagelo-1.FUSE/ I( FUSE 9
F.itl, Lq::---
".:lo63
10
BLK,YEL
10
c101
vlEW28
c'120
vlEW29
BLK
c14
c120
vlEW29
rIDcM) IGKPM) (CYPM)Sensor Sensor Sensolground ground ground
L-- - - -- -----J PHora 36
L-----------J
:L_1__I,
! iii:?ifq"l
I
**:'
*-"*,t";'
= PHO|O 33PHOTO 123ICW)
Secondary
ti <..-/4 i t
iLi:"_gl_i iL-----1!-----r
96- 97 models I 98- 00 modets
20
Spark Plugs

lgnition System
- All Dl685 engines; All '99-'00 Models except Dl6Y5 with M/T
NOTE: For Service Check Connector details, see page 24-4 (except D1685) or 25-4 (D1685).
STEERINGLOCKPOWERTRAIN
lm- sii.- s*- iffffiEgr
I '8f", '3#n '3#n | (Pcn' or EcM)
L------ -----J Wro 86
',L_I__J,
!l---+--l !
'i---
j----i'
fl '","?siii,xl
I I I
i*n"'."
-"1 "-l '-l *"-^lr";J
I I I ='i.{i31i",,-
All except D1685D1685
gLK.Yer t
u l9f#'
fi
"*1,[
F,*';.,
!'T-f*-'i"i! {F+ Distdbution,
LJ_gg'n'_
i.x,r
9'x*"
-.t
iF--Hs-,mT-l
ll pase lGi. I
l( FUsEe I
!Lig::___J
.I UNDER-I DASH
a FUSE/
! RELAY- BOX
1 Y C419 UNDER-^,ol',lill,l?"u' rlir?IA) RELAYBOX
.t0
BLKI/EL
10(D16Y7/D16Y8 s)
c101
PHO|O 142 lA1685)vlEw 2a
c120
vtEw 29OFN/ALULT BLU orALU/GRN
BLU,^VEL
c120
vtEw 29
ELKWHT/BLU
7
FED
c21c9
ALK
c30
;;--;;---o;;;lSensor Sonsor Sensor I
POWERTRAINor ENGINECONTROLMODULE(PCM or ECM)
ground ground gtound
L ------ -----J PHoro 36
Sec!l|dary
Sparh Plugs
20-2

PGM-FI (All '9G'98 Models except D16B5; '99-'00 D16Y5 with MiT)
bnilbnout$rtsionel@r)
lDC CKP CYPa€nsor aanaor s€nEoring'lt input inputfiDCP) (O(PE (CYP4
CKFs9nsorinpul&$n
I
t
I
A20
t-
I
(
)
I
:.
;{-r*:-:'${##*i
"H,,,*,"^.
I i * u.*
ruigffi?lFl-"44ffiil'i*-1 luffi::r- | [
m:#f:
1

J

Z

"

C12O
vlEW 29lll9!9^- s A ctoz
'ry-li15fi,ffiYi"++#"
1|-l"l*r
l-'"-L::___U-__-i.",*
"*l ,n*,,o.o I [:fl:**l v{'{r/REDI
r
lll
| !
"""'"'*
|
"''ol ",r1, ! ruW*
!-=-n*-r=d*--,=-,.r-------t?il-1 PowEBTRAIN [ ;aee :+-:'
i
tr* dffi iffi ff*:
ifltBtr. I I
L------- -----Jffi-:cu1 lr-J
G10lPHO|O 33PHOfO 123 lCVn
23-2
wEw lo

PGM-FI (All '9$'00 Models except D16Y5 with M/T and D1685) (cont'd)
ltrl! lgnition TDC CKP CYP CKF \I output sensor sensor ssnsor sensorI signal inpt$ input input input I
! ncut dDcB (CKpPr tdveel tCxepl IL------- ------J
]L 'iffi
,Tf;=44ff=''fiffi;^.,"^-
Lqsry:ffi_ tt-i ffilJ
ilffi:*'"
N N
ffiP
;
:ffi-qg;"," -;ffi' ", -
-" " ^^, | | igBri/ |
' Pnoro,e te'0A2,
------,1-I---L",,,
| | (PcM or ECM) r-GtorL______ ___J pHoTooa, = ,*ZiZ1
,"
:l :l] :l
ffi
i----=*:?, *Sru,----- *fu-l!fl::'*'" I I
!
"' il;ffi6
ifttEtrh", L-J
24-2