Pgm fi HONDA CIVIC 1996 6.G Workshop 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

)Erasing the DTC Memory
To erase the DTC(s) from the SRS unit, use a Honda
PGM Tester (see the Honda PGM Tester SRS vehicle
System Supplement) or the following procedure
1. Make sure the ignition switch is OFF
2. Connect the SCS service connector to the MES con-
nector (2P). Do not use a jumper wlre.
]P,
&
.!--J
MEMORY ERASE
SIGNAL (MESI CONNECTOR I2PI
IGRY, GRYI or [GRN, GRNI
SCS SERVICE CONNECTORo?PAZ - 0010100
t
7.
Turn the ignition switch ON (ll).
The SRS indicator light comes on for about six sec-
onds and goes off. Remove the SCS service connec-
tor from the MES connector (2P) within four seconds
after the SRS indicator light went off.
The SRS indicator light comes on again. Reconnect
the SCS service connector to the lvlES connector
(2P) within the four seconds after the SRS indicator
light comes on.
The SRS indicator light goes off. Remove the SCS
service connector from the MES connector (2P)
within four seconds.
The SRS indicator light indicates that the memory is
erased by blinking two times.
Turn the ignition switch OFF, and wait for ten sec-
onos.
8.
SRS indictlorlighi
MESconncclottcaminals
CONNECTED
O,
DISCONI{ECTED
24-15
Troubleshooting Intermittent
Failures
lf there was a malfunction, but it doesn't recur, it will be
stored in the memory as an intermittent failure, and the
SRS indicator light comes on.
Afte. checking the DTC, troubleshoot as lollows:
1. Read rhe DTC {see "Reading the DTC"}.
Erase the DTC memory (see "Erasing the DTC
Memory").
With the shifi lever in neutral, turn the ignition switch
ON (ll), and lei the engine idle.
The SRS indicator light comes on for about six sec-
onds and goes off.
l*F
ON
tl-- -l
Shake the wire harness and the connector, take a test
drive (quick acceleration, quick braking, cornering),
and turn the steering wheel fully left and right, and
hold it there for five lo ten seconds to find the cause
of the intermittent failure.
lf the problem recurs, the SRS indicator light will
stay on.
-q 6a.c f'-
:q
Problem recurs, light stays on
3.
4.
6.lf vou can't duplicate the intermittent failure, the sys-
tem is OK at this time.

Troubleshooting
Diagnostic Trouble Code (DTCI Ghart -'96 - 97 Models (cont'd)
NOTE:* l: In case of an intermittent failure DTC g-1, it means there was an internal failure of the SRS unit or a faultv SRS indicator light circuit. Do the troubleshooting for intermittent failures (see page 24-15).*2: lt both DTC 9-2 and DTC 5-1 are indicated, do the troubleshooting for DTC g-2.*3: Apply to the '97 model coupe HX and DX.*4: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
24-18
.
Possiblg cause Cortestive action
5 3 I Internal failure of the SRS unitSRS unit
replacement
lnternal failure of the SRS unitSRS unit
replacement
Internal failure of the SRS unit
Internal failure of the SRS unitSRS unit
replacement
Internalfailure of the SRS unit ortwo failures at atime
8-6*3 Internalfailure ofthe SRS unit
Internal failure of the SRS unit
Faulty SRS power supply (VB line)
SRS unit replacement code (SRS unit must not
be used any longe.)
J

Troubleshooting
Diagnostic Trouble Code (DTC) Chart -'98 - 00 Models {cont'dl
NOTE:* 1: In case of an intermittent failure DTC 9-1, it means there was an internal failure of the SRS unit or a faulty SRS indica-
tor light circuit. Do the troubleshooting for intermittent failures (page 24-'15).*2: In case of an intermittent failure DTC 9-2, it means there was an internal failure of the power supply {VB line). Do the
troubleshooting for intermiftent failures.*3: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
24-20
\
SRS indicator lightDTCPossible causeCorrectiYe actionSee page
comes on
5-1lnternal failure of the SRS unitSRS unit
replacemenl24-765-4
6-1
lnternal failure of the SRS unitSRS unit
replacement24-7 66-2
o-5
6-4
7-1
lnternal failure of the SRS unitSRS unit
replacement24-76
7-3
8-1lnternal failure of the SRS unitSRS unit
reptacement24-7 68-2
8-6Internal failure of the SRS unit or two failures
at a trmeTroubleshooting24-62
g_1*r *3lnternal failure of the SRS unitSRS unit
replacement24-7 6
9-2+2 *3lnternal failure of the SRS unit5l|5 Untr
replacement24-76
10-1SRS airbags deployed (SRS unit must be
reDlaced)
SRS unit
replacement24-76

Troubleshooting
Diagnostic Trouble Code (DTCI Ghart -'98 - 00 Models (cont'd)
NOTE:*l: In case of an intermittent failure DTC 9-1. it means there was an internal failure of the SRS unit or a faultv SRS indica-
tor light circuit. Do the troubleshooting for intermiftent failures (pa9e 24-15).*2: In case of an intermittent failure DTC 9-2, it means there was an internal failure of the power supply (VB line). Do thetroubleshooting for intermittent failures.*3: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
SRS indicator lightDTCPossible causeCorective actionSeo page
comes on
5-2
53
54
lnternal failure of the SRS unitSRS unit
replacement24-7 6
6-1
6-2
_
64
Internal failure of the SRS unitSRS unit
replacement24-16
n
-
8l
8S
9_1*r *3
Internal failure of the SRS unitSRS unit
reptacement24-76
Internal failure of the SRS unitSRS unit
replacement24-76
Internal failure of the SRS unitSRS unit
replacement24-76
Internal failure of the SBS unitSRS unit
reptacemenr24-76
10-1SRS airbags deployed (SRS unit must be
reDlaced)
SRS unit
replacement24-76
24-22

Troubleshooting
Diagnostic Trouble Code (DTG) Chart -'98 - 00 Models (cont'dl
NOTE:*'l: In case of an intermittent failure DTC 9-1. it means there was an internal failure of the SRS unit or a faulty SRS indica-
tor light circuit. Do the troubleshooting for intermiftent failu.es (page 24-15).*2: In case ot an intermittent failure DTC 9-2. it means there was an internal failure of the power supply (VB line). Do the
troubleshooting for intermift ent failures.*3: DTC cannot be read with a Honda PGM Tester; check by jumping the SCS service connector.
24-24
a,
SRS indicator lightDTCPossible causeCorective actionSee page
comes on
lnternal failure of the SRS unitSRS unit
repracemenl24-765-4
6-3lnternal failure of the SRS unitSRS unit
reptacemenr24-766-4
Internal failure of the SRS unitSRS unit
replacement24-7 6
8-1
lnternal failure ot the SRS unitSRS unit
replacement24-7 68-2
8-6
g_1*r *rInternal failure of the SRS unitSRS unit
replacement24-16
lnternal failure of the SRS unitSRS unit
repracemenl24-76
10-1SRS airbags deployed (SRS unit must be
.eplaced)
SRS unit
reptacemenl24-76

Fuse
NumberAmpsPageFuse Name
(RR WIPER
RR WASHER)
i R HiL HIGH BEAM | 10
L H/L HIGH BEAM
| (PAIV RR-L)
i (P/vv RR-R)
(rGN CO|L)
10I (P,^/V AS)
Component or Circuit Protected
Not used
Not used
Rear wiper, Security system (option)
(Vehicles pre-wired for accessory security system)
'10r 1n-2
I
| 1 10-12i Right headlight, DRL control unit (Canada)
Lett headlight, DRL control unit (Canada)
I ro-rsSecurity system (option)
| 120-2 | Left rear window motor
Right rear window motor
lgnition coil ('98-'00 models except GX)
| 120-1 | Front passenger's window motor
i (PiW DH)| 20 1 12O I Driver's window motor
TURN LIGHTSHazard warning switch
FUEL PUMP
(SRS UNIT)
PGM-FI main relav, SRS unit
(cRUrsE CoNTROL)
/KtrVt trSS\
Stereo radio tuner ('96-'98 USA: LX, EX, and HX),
Cruise control main switch, Keyless door lock
control unit ('99-'00 models with keyless entry)
15ALTERNATOR
SP SENSOR
l-a10-4I ELD unit, Gauge assembly, TCM (96-'98 CW, PGM-FI
16I RR DEF RELAY7.510-8I Rear window defogger ('96-'98 models), ABS control
I unit. Power mirror switch ('99-'00 models except GX)
i-HEATER r/C
I RELAY
Power mirrors ('96-98 models and all GX models),
Air delivery, Blower controls, AilC compressor
controls, Fans
I (RUNNING LIGHT
I RELAY)
1 7.5 1
tl
I DRL control unit (Canada)
i BACK-UP LTGHTSi Back-up lights
(RUNNING LIGHT)DRL control unit (Canada)
I R H/L LOW BEAM'10 l11o-12Right headlight
I L H/L LOW BEAM | 101110-12 | Left headlight
(cont'd)
(SRS)SRS unit
6-1

Fuse
NumberFuse NameAmpsPage
BATTERY
Component or Circult Protected
Power distribution
lgnition switch
INTERIOR LIGHT | 7.5 | 10-10 | DLC, Ceiling light, Trunk light
FI E/M15 i(20 GX) i
i PGM-FI main relay, Fuel injection relay (GX)
Not used
POWER WINDOW| 10-10 | Power window relay
BACK UPStereo radio iuner ('9G'98 mod€ls), Audio unit ('99100
models), Heater control panel, PCM/ECM, TCM (9e'98
cvr)
HEADLIGHT
REAR DEFROSTER I
DOOR LOCK UNIT,
ROOF
i 10-12i Headlights
Not used
Rear window defogger relay
Power door lock control unit (all except '99-'00 models
with keyless), Keyless door lock control unit ('99-'00
models with keyless), Moonroof
i HORN, SrOP Lri 10-13i Horn relay, Brake switch
HAZARDHazard warning switch
OPTIONI 10-13I Security system (option)
i HEATER MOTOR Ii 10-1 i Blower motor relay
(CONDENSER FAN)
COOLING FANl1o-1
Condenser Jan relay, A'lC compressor clutch relay
Radiator tan relay
&5

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

Power Distributiofl (cont'd)
- From Fuses to Relays and Components
R8€3
5A
tl
tl
PGM.FIMAIN RELAYPag$ 23,24, ot 25PHOfO U
GRY (r8)or Cnl|
Gi Ul|T
llfllvrtl|€n)
FUSE ,'2
nnx ucms7.ta
I
\
\
I
I
c801PHO|O 5Ac423 r'lPHOTO 58c501PHO|O @vtEw 55
tl
ll
HAZARDWAFNING SWITCHPage 110-6 or 110-8vlEw 32
tt
tl
SRS UNITPags 47PUO|O 70vtt:w 51
r = MaleFemalelerminalsrevgrsed for'99-'00 models
onh no'l Wipsr GRN)
w8r Boar Wipif
'9&'00 Vlhbl.. at?wM frrdocarssy 66ourily eldcn
@
rtYELI *. 1'f
ft?'},' I
l,l m*a" ,,l*i*-
SECURITYSYSTEi' SECURIW SYSTEM
F"ontnlSSto"tott'on' S"ontnl5S]ottott'onr
Gnx I
WHT I
r---l
ll
tl
COMBINATIONWIPER SWITCHPage 92
vlEw 05
10-2