Can HONDA CIVIC 1996 6.G Workshop Manual

t-Operation
t
ABS Control Unit
Main Control
The ABS control unit detects the wheel speed based on the wheel sensor signal it received, then it calculates the vehicle
speed based on the detected wheel speed. The control unit detects the vehicle speed during deceleration based on the
rate of deceleration.
The ABS control unit calculates the slip rate of each wheel. and it transmits the control signal to the modulator unit
solenoid valve when the slip rate is high.
The pressure reduction control is a three-mode system, that is pressure reduction, pressure retaining and pressure intensi-
fying modes.
Self -diagnosis Funqtion
The ABS control unit is equipped with a main CPU and a sub CPU, and the CPUS check each other'
The CPUs check the circuit of the svstem.
When the CPUS detect failure, they shift to the "system down mode" or the "control inhibition mode"
The self-diagnosis can be classifield into these four categories:
O: Initial diagnosis
@: Except ABS control
@: During ABS control
@: During warning
On-board Diagnosis Funstion
The ABS control unit is connected to the data link connector {16P).
The ABS system can be diagnosed with the Honda PGM Tester.
(cont'd)
MODEABS INDICATOR LIGHTMAIN
RELAY
SOLENOID
VALVECPURestart conditionDTC
SYSTE IV
DOWNONNo
operation
Drive
inhibitionOperation*rlgnition
switchOFF + ONMemory
CONTROL
INHIBITIONONNo
operalron
Drive
inhibitionOperationAutomaticMemory
*1: Except CPU failure
/
19-47

Troubleshooting Precautions
ABS Indicator Light
I The ABS indicator light comes on when the ABS control unit detects a problem in the system. However, even thoughthe system is normal, the ABs indicator light can come on, too, under the following conditions. To determine theactual cause of the problem, question the customer about the problem, taking the following conditions into consider-ation.
. Signal disturbance
. Wheel soin
. Only drive wheels rotate. Battery voltage fluctuates
2. When a problem is detected and the ABS indicator light comes on, the indicator light can stay on untat the ignitionswitch is turned off, or it can automatically go off, depending on the mode.. Lightstayson until the ignition switch isturned off;When the system is inthesvstem down mode.o Light automatically goes off:When the system is in the control inhibition mode.(refer to symptom-to-system chart)3 The ABS indicator light stays on when the system is reactivated without erasing the DTC, but it goes off after startingthe car.
when the wheel sensor system is faulty and the ABS indicator light comes on, the algorithm of the system automaticallyturns off the ABS indicator light after the wheel speed signal returns to the normal speed. while, when the DTC is erased,the CPU is reset and the ABS indicator light goes off when the system check€d out normal by the initial diagnosis.Therefore, test-drive the car after servicing the wheel sensor system, and be sure that the ABS indicator light does notcome on.
4. When the ABS control unit outputs battery voltage to the gauge assembty, the ABS indicator light goes off.
Diagnostic Trouble Code (DTC)
1. The diagnostic trouble code (DTC) is memorized when a problem is detected and the ABS indicator light does not gooff, or when the ABS indicator light comes on.The DTC is not memorized when the ABs indicator right comes on unress the cpU is activated.2. The memory can hold any number of DTCs. However, when the same DTc is detected twice or more, the later one iswritten over the old one.
Therefore. when the same problem is detected repeatedly, it is recorded as one DTC.3. The DTCS are indicated in the order of ascending number, not in the order thev occur.4. The DTCS are memorized in the EEpROM {non-volatile memorv}.Therefore, the memorized DTCS cannot be canceled by disconnecting the battery. perform the specified orocedures toerase.
Solf-diagnosis
1. The self-diagnosis can be classifield into these four categories:' Initial diagnosis; Performed right after the engine sta rts and untiltheABs indicator light goes off.o Except ABS control: Performed when the ABS is not functioning,. During ABS control: Performed when the ABS is functioning.. During warning: Performed when the ABS indicator light is ON.2 The system performs the following controls when a problem is detected by the self-diagnosis:. ABS indicator light ON. Memory of DTC
. Mode change to the "system down mode,, or the "control inhibition mode,,.
MODEABS INDICATOR LIGHTMAIN
RELAY
SOLENOID
VALVECPURestart conditionDTC
SYSTEM
DOWNONNo
operal|on
Drive
inhibitionOperation+rlgnition
switchOFF - ONMemory
CONTROL
INHIBITIONONNo
operat|on
Orive
inhibitionOperationAutomaticMemory
*1: Except CPU failure
19-54

tJ
t\
Kickback
1. The motor operates when the ABS is functioning, and the fluid in the reservoir is forced out to the master cylinder
causing kickback at the brake pedal.
2. TheABScontrol unit operates the solenoid valve when the brake pedal is released afterthe initial diagnosis Youmay
hear the faint solenoid valve operation sound at this time. but it is normal.
Pump Motor
1. The pump motor operates when the ABS is functioning
2. The ABS control unit checks the pump motor operation during acceleration. You may hear the faint operation sound
at this time. but it is normal.
Brake Fluid Replacament/Air Blsading
1. Brake fluid replacement and air bleeding procedures are the same as for conventional brakes
Troubleshooting
1. The troubleshooting flowcharts explain the procedures on the assumption that the cause of the problem is still pre-
sent and the ABS indicator light is still on.
Note that troubleshooting following the flowchart when the ABS indicator light does not come on can result in incor-
rect judgment.
2. Ouestion the customer about the conditions when the problem occurred, and try to reproduce the same conditions
for troubleshooting.
self,diagnosis is made at various times such as the initial diagnosis, except ABS control. during ABS control, during
acceleraiion, during the specified vehicle speed, etc. Therefore, the symptom cannot be checked unless the check
conditions match with the problem conditions
3. When the ABS indicator light does not come on during the test drive, but the troubleshooting is performed based on
the DTC, check for the loose connectors. poor contact of the terminals, etc, before troubleshooting.
4. After troubleshooting, erase the DTC and test-drive the car. Be sure that the ABS indicator light does not come on.
5. The connector illustrations show the female connectors with a single outline and the male connectors with a double
ouflrne.
6. The connector terminal cavities containing female terminals are always numbered by looking at the connector from
the wire side. and the cavities containing male terminals are always numbered by looking at the connector from the
terminal side.
r'
19-55

Diagnostic Trouble Code (DTCI
Diagnostic Trouble Code {DTC) Indication
NOTE: This operation can also be carried out with the Honda pGM Tesrer.
l connect the scs service connector to the service check connector inside the passenger,s side kick panel.
2. Turn the ignition switch ON (||). but do not start the engine.NOTE: Do not depress the brake pedal when turning the ignition switch.
3 Record the brinking frequency of the ABS indicator right. The brinking frequency indicates the DTc.
4, Turn the ignition switch OFF, and remove the SCS service connector.NorE: The Mslfunction Indicator Lamp (MlL) will stay on after the engine is started if the scs service connector isconnected.
5. Erase the DTC.
Condhions for DTC indication. The vehicle is stoDDed.. The SCS service connector is connected before the ignition switch is turned ON fll).. The brake pedal is released.. Th€ SCS service connector remains connected during this procedure
The DTG indication stops 8nd the ABs conltol unit executes the softwaro tunqtion if at least one of the following condi-tions b satisfied:
o The vehicle is not stoDoed.' The ABS control unit receives the normat signal (which is for the ABS controt unit) from a Honda pGM Tester.. The SCS service connector is disconnected during this procedu.e,
u.s.A.
@
CANADA
@
SERVICE CHECKCONNECTOR {2PISCS SERVICE CONNECTOR07PAZ - 0010100
ABS INDICATOR LIGHT
DTC : 3 3
A8S INDICAIOR LIGHT
Snilion swirch
' when the ignition switch is turned oN (ll), the ABs indicator light comes on to check the bulb. Do not count it as a DTc.o The ABS control unit can memorize any number of DTCs.. The new DTC is not memorized when the ABS control unit has already memorized the same DTC,.lftheDTCisnotmemorized,theABSindicatorlightstaysONafteritgoesofffor3.6seconds.
19-56

Le
\.t
CONDITION FOR DETECTION
MANAGEI\,4ENT
FEFERTOPAGEDUNINGABS CONTFOLEXCEPTABS CONTAOL
19-60
19-62
The ABS indicator lighl cones on when vehicle is stopp€d and wheel sensor a given vohaqe does nol
19 64
The ABS indicaror comes on under th€lollowing conditions.When morethan one otwheels are a standstiland thelelocirv otthe fastest wheel reaches a
' fohen th. velocity of the faslesl wheel reaches or exceds a given sped, and it there ar€ somewh@lswhose velocity is slowe.lhan a cenain percenlage oi lh€ fast6t wheelsped for 3 given period. when rhere are lemporary open or short ctcuits ol rhe wheel sonsor' chipp€d pulser gear, orsrgnalorslJrbaaLe
19 64
The main relay repeats ON/OFF switching atalltimes.WhenthemainrelayisON,ashortt$tpulseissentloeachvalve lfthere s some dis'repa ncv, lheABS indicalor lightcomes on.. When rhe main relay is OFF, a shonl€sl pulse is s€nlto each valve lfth6 solenoid drive voltage rsout ol a qiven range, the ABS ndicalor lighl comes on19-66
'The pump nolot s activaled orc€ o' Mrce sfier every gn't'on sw'lch ON (ll) operarion whrle lte -^vchicle acLelerales lrenthemolorotivevo'taSersrhecled When lhevolla96 rs abnormar,lre Absindicaror llghl comes on.. Afte. ABS ;onl rol com pletion, the moror isswitched ofi 6nd the main CPU checks the molor dnvevoltase. when rhe vortase is abnormsl, the ABS indicato49!!!99!:l!:_-
19-68
D!rino an active motor lesl or AAS control,lhe main CPU checks ihe supplv voltage to the motor'whe;lhe vohage s abnofmal, the ABS indicator lightcomes on19,68
lirhe moror drvevoltage indicates molot operalion when the main cPU does notswilch the motoroN, rhe ABs indicaro. comes on19-64
. Wh"" " ".1"".1d ""1r. f"llure is detecred, the CPU checksth€ voltage ofthe main rel6v output lllhevohaqe is lowerthan 6 given vohage, theABS indicator light comes on. The ;ain r€lay repeats ON/OFF switching ar a!ltimss when the main rel.v is ofi, a shorl l6st pulse
is sent ro €ach valve. The CPU mon tors the reJer€nce vohage ll the vohage is out ot a g iven range'
the ABS indic.tor lightcomes on
19 71
wt'",, rt'e lgnitlon rottag" is ower or higherthan a given voltage,lhe CPU inhibils ABSlonlrolandswirches oli the ma in relaY, 6nd the ABS indicaror lig ht com€s on When the ig n ilion vohage recove'sto normal f6ng6, ABS inhibition is canceled.19.73
rimln CpU anO suU CeU ch€ck each other undercertain condnions. Whon rhe CPUS dstectthe fol'lowing discrepanaies, rhe ABS indicator light comss on. whe; rh€re is discGpancv n lhacarculated wheelspeed velocirv thar continuosJor more than a given
.i^/hen rhere is discrcoancv in the ehase informalion lhat continuesfor morerhan a given period' When rhere is discrepancY in thecalculared conlfol pa.amerer'. When thewatch dog conrrolp!lsetailslof a given penod. When th6 checkotth€ ROM tai1s.. when there is disrepancy inrhe data roading.nd wriung prcledurc ot RAM
19 7'l
tr
19-59

Doors
Latch Replacement
NOTE: Baise the glass fully.
1. Remove:
. Door panel (see page 20-4)
. Plastic cover (see page 20-2). Outer handle (see page 20-5)
Remove the bolt, then move the center lower channel
forwa rd.
Disconnect the connector, and detach the harness
clip from the door. Bemove the latch through the
hole in the door.
NOTE: Take care not to bend the inner handle rod,
outer handle rod, cylinder rod and lock rod.
>: Screw locations, 3
6 x 't.0 mm8 N.m (0.8 kgt m,6 tbf.ftl
4. Installation is the reverse of the removal procedure.
NOTE:
. Make sure the inner handle rod and connector
are connected properly.
. Make sure the door locks and opens properly.
LOCK ROO
20-6
'1.
Glass/Regulator Replacement
Removel
o Door panel (see page 20-4)
. Plastic cover (see page 20-2l,
Carefully move the glass until you can see the bolts,
then remove them. Carefully pull the glass out
through the window slot.
NOTE: Take care not to drop the glass inside the door.
>i Bolt loc.tions,2
fi s'r.o-. iClb9.8 N.m 11.0 kst m,l
_-l't!!t ,/
GLASS
REGULATOR

Doors
Latch Replacement
NOTE: Raise the glass futty.
1. Remove:
. Door panel (see page 20-10). Plastic cover (see page 20-8). Outer handle (see page 2O-1 ,l
2. Remove the lock crank and clip.
>: Screw location, I >: Clip location, I
qn@l # |
_ __) _-__)
LOCKROO
LATCH
Remove the rear channel collar.
NOTE: Take care not to bend the lock rod and innerhandle rod.
Disconnect theconnector.
6x1.0mm8 N.m (0.8 kgt m,
5.
6 tbtttl
Remove the latch through the hole in lne door.
lnstallation is the reverse of the removat proceoure.
NOTE: Make sure the door locks and opens properly.
20-12
,,< 8 N.m to.8 ksf.m, 6 tbt.ftt
IDF-IIID I
.)-__,/
2.
L
p o'r.o-,n I@ 9.8 N.m {t.o kof.m. I
.- :'zulnt -
/
3. Carefully lower the glass. Remove the bolts andscrew from the rear channel, then remove the glassfrom the rear channel.
NOTE: Take care not to drop the glass inside the door.
>: Bolt. screw locations
A, 1 , c, 1I
q)h:iT(--n,,". i m
- - illt) '/ -)
Glass/Regulator Replacement
Remove:
. Door panel {see page 20-10). Plastic cover (see page 20,8)
Carefully move the glass until you can see the bolts,then remove them.
NOTE: Take care notto drop the glass inside the door.
>: Eolt locations, 2
6x1.0mmB, 1

LGlass/Regulator Replacement
2.
1.Remove:
. Door panel (see page 20-'16)
. Plastic cover (see page 20-14)
Carefully move the glass until you can see the bolts,
then loosen them. Slide the guide rearward, remove
the glass trom the guide, and carefully pull the
glass out through the window slot.
NOTE: Take care not to drop the glass inside the door.
>: Bolt localions,2
6x1.0mm
E 9.8 N.m {1.0 kgtm, Il* 7.2 tbrfil I\3 Loosen ,/
Jt
GUIDE
3. Disconnect the connector, and detach the harness
clip, then remove the regulator through the hole in
the door.
NOTE: Scribe a line around the rear roller guide bolt
to show the original adjustment.
>: Bolt locations
a >,4
6xL0mmI6x1.omm II N.m {0.8 kgt.m,6lbrft ]Loosen. ,/
B >,2
8 N.m (0.8 kgt m, i'-1
)
ROLLERREGULATOR
BOLTS
(cont'd)
20-19

bPosition Adjustment
NOTE: Place the vehicle on a firm, level surface when
adjusting the doors.
After installing the door, check for a flush fit with the
body, then check for equal gaps between the front, rear,
and bottom door edges and the body. The door and
body edges should also be parallel. Adjust at the hinges
as shown,
CAUTION: Place a shop towel on the iack to prevent
damage to the door when loosening the door and hinge
mounting bohs for adiustment.
DOOR MOUNTING BOLTS8 x 1.25 mm28 N.m {2.9 kgf.m.21 lbt'ft}Loosen the door mounting bolts slightly
to move the door lN or OUT until
it's flush with the body. lf necessary,
vou can installa shim behind one
hinge to make the door edgesPARALLEL with the body.
J
HINGE MOUNTING BOLTSI x 1.25 mm28 N.m (2.9 kgf.m,21 lbtft)Remove the inner fender,loosen the hinge mountingbolts, and move the doorBACKWARD or FORWARD,UP or DOWN as necessaryto equalize the gaps.Lower the glass.
\
The door and body edges should be parallel-
ifF t
NOTE: Check for water leaks.
20-23
Striker Adjustment
lvlake sure the door latches securely without slamming.
lf it needs adjustment:
NOTE; The striker nuts are fixed, but the striker can be
adjusted slightly up or down, and in or out.
'L Loosen the screws, then insert a shop towel between
the body and striker.
Insert a shop towelbetween the body and
sc8Ews8 x 1.25 mm18 N.m (1.8 kgf.m,13 tbtftl
PLASTIC
2. Lightly tighten the screws.
3. Wrap the striker with a shop towel, then adjust the
striker by tapping it with a plastic hammer.
CAUTION: Do not tap the striker too hard.
4. Loosen the screws. and remove the shop towel.
Lightly tighten the screws.
Hold the outer handle out, and push the door
against the body to be sure the striker allows a flush
fit. lf the door latches properly, tighten the screws and
recheck.
5.

'11.Thoroughly mix the adhesive and hardener together
on a glass or metal plate wilh a putty knife.
NOTE:
. Clean the plate with a sponge and alcohol before
mixing.
. Follow the instructions that came with the adhe-
sive.
Before filling a cartridge, cut the end of the nozzle
as shown.
10 mm {0.39 in.)
7 mm (0.27 in.l
Pack adhesive into the cartridge without air pockets
to ensure continous delivery. Put the canridge in a
caulking gun, and run a bead ol adhesive around
the edge of the rear window as shown.
NOTE| Apply the adhesive within 30 minutes after
applying the glass primer.
12.
13.
J
12 mm 10.,U in.)
[/ oo*r.,u.
8 mm (0.31 in.)
Make a slightly thickerbead at each corner.
GLASS
FASTENER
SPACER
MOLDING
MOLDING
)REAR WINDOW
FASTENER
20-35
14. Use suction cups to hold the rear window over the
opening, align it with the alignment marks made in
step 7, and set it down on the adhesive. Lightly
push on the rear window until its edges are {ully
seated on the adhesive all the way around.
NOTE: Do not open or close the doors until the adhe-
sive is dry.
SUCTION ALIGNMENTCUPS MARK
Scrape or wipe the excess adhesive off with a putty
knife or towel.
NOTE: To remove adhesive from a painted surface
or the rear window, use a soft shop towel damp-
ened with alcohol.
Let the adhesive dry for at least one hour, then
spray water over the rear window and check for
leaks. Mark the leaking areas, let the rear window
dry, then seal with sealant.
NOTE: Let the car stand for at least four hours after
rear window installation. lf the car has to be used
within the Iirst tour hours, it must be driven slowly
Reinstall all remaining removed parts
NOTE: Advise the customer not to do the following
things for two to three days:
. Slam the doors with all the windows rolled up.
. Twist the body excessively (such as when going
in and out of driveways at an angle or driving
over rough. uneven roads).
16.
1-7 .