1996 HONDA CIVIC inter lock

I
PCM CONNECTOR B {25P1 {cont'dl
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Vohage
811SHBShift control solenoid valve B
control
In 1st gear and 2nd gear in -q1, q11 position,
and in E] position: Battery voltage
In 3rd gear and 4th gear in lD.J, [Dr- position: 0 V
B't2SLUInterlock controlWhen ignition switch is ON (ll), brake pedal
deoressed and accelerator Dedal released: 0 V
813D4 INDD4 Indicator light controlWhen ignition switch is first turned ON (ll):
Battery voltage for two seconds
In E position: Baftery voltage
B't 4NMSGMainshaft speed sensor groundAlways: 0 V
E tcNMMainshaft speed sensor signal
input
Depending on engine speed: Pulsing signal
When engine is stopped: 0 V
816ATP RAy'T gear position switch Eposition signal input
InE position: 0V
In other than E position: Battery voltage
817ATP 2A/T gear position switch E posi-
tion signal input
InE position: 0V
In orher than E position: Battery voltage
818 to 821Not used
s22NCSGCountershatt speed sensor groundAlwaysr 0 V
B23NCCountershaft speed sensor signal
input
Depending on vehicle speed: Pulsing signal
When vehicle is stopped: 0 V
B24ATP D4Ay'T gear position switch lor posi-
tion signal input
InEposition:0V
In other than 6 position: 5 V
ATP NPA,/T gear position switch E and
N position signals input
InE and E positions: 0V
In otherthan E and N] positions: Battery voltage
PCM CONNECTOR C {31P)
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
Cl to C6- see section 11 -
c1Service check signalWith ignition switch ON (ll) and service check
connector oDen; 5 V
With ignition switch ON (ll) and service check
connector connected with sDecial tool: 0 V
C8 to Cg- see section 11 -
c10VBUBack-up power systemAlways battery voltage
C11 to C31- see section '11 -
PCM CONNECTOR D (16P}
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
Dl to D4- see section 11 -
D5STOP SWBrake switch signal inputBrake pedal depressed: Battery voltage
Brake pedal released: 0 V
D6 to D16- see section 1 l -
14-43

PCM Terminal Voltage/Measuring Conditions ('99 - 00 Models)
A/T Control System
The PCM terminal voltage and measuring condjtions are shown for the connector terminals that are related to the A//T con-trol system, The other PCM terminal voltage and measuring conditions are described in section ,11.
PCM Connoctor Tgrminrl Locations
PCM CONNECTOR A {32PI
PCM CONNECTOR 8 (25P}
Terminal NumbelSignalDescriptionM€asuring Conditions/Terminal Voltage
A105L5Service check signalWith ignition switch ON (ll) and service check
connector open: Approx, 5 V
With ignition switch ON (ll) and service check
connector connected with sDecial tool: 0 V
A14D4 INDE indicator light controlWhen ignition switch is first turned ON (ll):
ApDrox. 10 V for two seconds
In E position: Approx. 1O V
428ILUInterlock ControlWhen ignition switch ON (ll), brake pedal
depressed, and accelerator pedal rereaseo:
Battery voltage
A.32STOP SWBrake switch signal inputBrake pedal depressed: battery voltage
Brake oedal released:0 V
Terminal NumberSignalDescdptionMeasuring Condhions/Torminal Voltag6
B1!GP1Power supply systemWith ignition switch ON (ll): Battery voltage
With ignition switch OFF: 0 V
PGlGround
B8LS AMLinear solenoid power supply
negative electrode
With ignition switch ON (ll): Pulsing signal
B9IG P2Power supply systemWith ignition switch ON (ll): Baftery voltage
With ignition switch OFF: 0 V
810PG2G rou nd
917LS APLinear solenoid power supplypositive electrode
With ignition switch ON (ll): Pulsing signal
B20Ground
VBUBack-up power supplyAlways battery voltage
822Ground
\
14-46

Troubleshootin g Procedures
Chccking the Diagnostic Trouble Code IDTC)with an OBD ll Scan tool or Honda PGM Tester
when the PCM senses an abnormality in the input or output systems, the pl indicator light in the gauge assembly willblink. When the 16P Data Link Connector (DLC) (located under the dash on the driver,s side) is connected to the OBD llScan Tool or Honda PGM Tester as shown, the scan tool or tester will indicate the Diagnostic Trouble Code (DTC) whenthe ignition switch is turned ON{ll).
lf the El indicator light or the MIL has been reported on, or lf a driveability problem is suspected, follow this procedure:
1. Connect the OBD ll Scan Tool (conforming to SAE J19781 or Honda PGM Tester to rhe 16p DLC. (See the OBD ll ScanTool or Honda PGM Tester user's manual for specific instructions. lf you are using the Honda PGM Tester, make sure itis set to the SAE DTC type.)
2. Turn the ignition switch ON (lll, and observe the DTC on the screen,3, Record all fuel and emission DTCS, A/T DTCS, and freeze data.4 lf there is a fuel and emissions DTC, first checkthe fuel and emissions system as indicated bythe DTC (except for DTCP0700). DTC P0700 means there is one or more A,/T DTC, and no problems were detected in the fuel and emissions cir-cuit of the PCM.
5. Write down the radio station oresets.
6. Reset the memory with the PGM Tester or by removing the BACK UP fuse in the passenger's under-dash fuse/relay boxfor more than 10 seconds.
7. Drive the vehicle for several minutes at speeds over 30 mph (50 km/hr), and then recheck for DTCS. lf the A"/T DTCreturns, go to the Symptom-to Component Chart on pages 14-52 and 14-53 for'96 - 98 models, and pages 14-54 and14-55 for the'99 - 00 models, lf the DTC does not return, there was an intermittent problem within the circuit. Makesure all pins and terminals in the circuit are tight, and then go to step g.
8. Reset the radio preset stations, and set the clock.
OBD ll SCAN TOOL orHONDA PGM TESTER
DAYA LINK CONNECTOR {16P}
14-44

Description
Clutches/Reverse Brake/Planetary Gear/Pulleys
Clulches/Reverse Brake
The CVT uses the hydraulically-actuated clutches and brake to engage or disengage the transmission gears. When
hydraulic pressure is introduced into the clutch drum and the reverse brake piston cavity, the clutch piston and the reverse
brake piston move. This presses the friction djscs and the steel plates together, locking them so they don't slip. Power is
then transmitted through the engaged clutch pack to its hub-mounted gear. and through engaged ring gear to pinion
gears.
Likewise, when the hydraulic pressure is bled from the clutch pack and the reverse brake piston cavity, the piston releases
the friction discs and the steel plates, and they are free to slide past each. This allows the gear to spin independently on its
shaft, transmitting no power.
Start Clutch
The start clutch, which is located at the end of the driven pulley shaft, engages/disengages the secondary drive gear.
The start clutch is supplied hydraulic pressure by its ATF feed pipes within the driven pulley shaft.
Forward Clutch
The forward clutch, which is located at the end of the drive pulley shaft, engages/disengages the sun gear.
The forward clutch is supplied hydraulic pressure by its ATF feed pipe within the drive pulley shaft.
Reverse Brake
The reverse brake, which is located inside the inte.mediate housing around the ring gear, locks the ring gear in E posi-
tion. The reverse brake discs are mounted to the ring gear and the reverse brake plates are mounted to the intermediate
housing. The reverse brake is supplied hydraulic pressure by a circuit connected to the internal hydraulic circuit.
Planetary Gear
The planetary gear consists of a sun gear, a carrier assembly, and a ring gear. The sun gear is connected to the input shaft
with splines. The pinion gears are mounted to the carrier which is mounted to the fo.ward clutch drum. The sun gear
inputs the engine power via the input shaft to the planetary gear, and the carrier outputs the engine power. The ring gear
is only used for switching the rotation direction of the pullev shafts,
In E. E, and E positions (forward range), the pinion gears don't rotate and revolve with the sun gear, so the carrier
rotates. In E] positjon {reverse range), the reverse brake locks the ring gear and the sun gear drives the pinion gears to
rotate. The pinion gears rotate and revolve in the opposite direction from the rotation direction of the sun gear, and the
carrier rotates with pinion gear revolution.
Pulleys
Each pulley consists of a movable face and a fixed face, and the effective pulley .atio changes with engine speed. The
drive pulley and the driven pulley are linked by the steel belt.
To achieve a low pulley ratio, high hydraulic pressure works on the movable face of the driven pulley and reduces the
effective diameter of the drive pulley. and a lower hydraulic pressure works on the movable face of the drive pulley to
eliminate the steel belt slippage. To achieve a high pulley ratio, high hydraulic pressure works on the movable face of the
drive pulley and reduces the eifective diameter of the driven pulley, and a lower hydraulic pressure works on the movable
face of the driven pulley to eliminate the steel belt slippage.
b
14-198

Description
Power Flow
E Position
. Start Clutch: released
. Forward Clutch: released
. Reverse Brake: released
Hydraulic pressure is not applied to the start clutch. forward clutch, and the reverse brake. Power is not transmitted to the
secondary drive gear.
E Position
. Start Clutch: released
. Forward Clutch: released
a Reverse Brake; released
Hydraulic pressure is not applied to the start clutch, forward clutch, and the reverse brake. Power is not transmitted to the
secondary drive gear. The secondary drive gear is locked by the park pawl interlocking the park gea..
FI-YWHEELFORWARD
INPUT SHAFT
SUN GEAR
START CLUTCHORIVEN PULLEY
FINAL ORIVEGEAR
PARK GEAR
FINAL DRIVEN GEAR
D
14-200

3. lnsert the inboard end of the driveshaft into the dif-
terential or intermediate shaft until the set ring
locks in the groove
NOTE: Clean the areas where the driveshaft contact
the transmission (differential) thoroughly with solvent
or carburetor cleaner, and dry with compressed air'
INBOARD JOINT
INBOARD JOINTReplace.
GROOVE
an
DIFFERENTIAL
lnstall the knuckie on the lower arm. then trghten
the castle nut and install a new cotter pin
NOTE: wipe off the grease before tightening the
nut at the ball ioint.
CAUTION:
. Be careful not to damago the ball ioint boot'
. Torque the castle nut to the lower torque sp€ci-
fication, thsn tighten it only far enough to align
the slot with th€ pin hol6. Do not align the nut
by loosening.
CASTLE NUT12 x 1 .25 mm
COTTER PINReplace.On reassemblY,bend the cotter pinJi$ - 59 N.m 15.0 - 6.0 kgl m,35 - 43 lbf ftl
16-19
5. lnstall the damper tork over the driveshaft and onto
the lower arm. Install the damper in the damper
fork so the aligning tab is aligned with the slot in
the damPer fork.
FLANGE BOLTl0 r 1.25 mmrit N.m t4.a kgf.m, 32 lbf.ft) AIIGN|NG TAB
1.
SELF-LOGKING NUT12 x 1.25 mm6,1N.m 16.5 kgi.m, a7 lbfftl
Replace.
Loosely install the flange bolts and the new self-
locking nut.
Apply oil to the seating surface of the new spindle
nut.
181 N m 118.5 kgt'm, 13il lbt'ftl
NOTE: Aftortightening, use a drift to
stake the spindle nut shoulder against the drivoshaft'
8. Install a new spindle nut, then tighten the nut'
9. Clean the mating surfaces ot the brake disc and the
wheel. then install the front wheel with the wheel
nuts.
10. Tighten the flange bolts and the new self-locking
nut with the vehicle's weight on the damper.
11. Refill the transmission with recommended fluid (see
section 13 or 14).'t2. Check the front wheel alignment and adjust if nec-
essary (see section 18),
FRONT WHEEL
SPINDLE NUT 22 x 1.5 mm
WHEEL NUT 12 x 1.5 mm108 N.m (11.0 kgl'm, g) lbl ftl

IRack Guide Adjustment
NOTE: Perform rack guide adjustment with the wheels
in the straight ahead Position.
1. Loosen the rack guide screw locknut with the
cialtool.
'96 - '97 models:
Loosen the rack guide screw
'98 - '00 models:
Remove the rack guide screw and remove the old
sealant off of the threaded section.
Apply new sealant all around the threads. Loosely
installthe rack guide screw
Tighten the rack guide screw to 25 N'm (2.5 kgf'm.
18 lbf.ft), then loosen it.
Retighten the rack guide screw to 3 9 N'm (0.4 kgim,
2.9 lbf.ft), then back it off to specified angle.
Specified Return Angle: 20" max.
Tighten the locknut while holding the rack guide
screw.
Check for tight or loose steering through the com-
plete turning travel.
Perform following insPections:
. Steering operation (see page 17-30).
. Power assist with vehicle parked.
4.
LOCKNUT WRENCH, 40 mm
lr
17-33
Fluid Replacement
Check the reservoir at regular intervals, and add fluid as
necessary.
CAUTION: Always us€ Genuine Honda Power Stearing
Fluid-V or S. Using any other type of power sto€ring
tluid or automatic transmission lluid can cause
increased wear and poor steering in cold weathor.
SYSTEM CAPACITY:
0.85 liter 10.90 US' qt,0.75 lmp'qt)
at disassembly
RESERVOIR CAPACITY:
0.4 liter (0.42 US. qt, 0.35 lmP.qt)
LEVEL LINE
LOWER LEVEL LINE
1. Raise the reservoir, then disconnect the return nose.
2. Connect a hose of suitable diameter to the discon-
nected return hose, and put the hose end in a suit-
able container.
CAUTION: Take care not to spill tho fluid on the
body and parts. Wipe off any spill€d fluid at oncs'
3. Start the engine, let it run at idle, and turn the steer-
ing wheel from lock-to-lock several times When
fluid stops running out of the hose, shut off the
engine, Discard the fluid.
4. Reinstall the return hose on the reservoir'
5. Fill the reservoir to the upper level line.
6. Start the engine and run it at fast idle, then turn the
steering trom lock-to-lock several times to bleed air
trom the system.
7. Recheck the fluid level and add some it necessary.
CAUTION: Do not fill the reservoir beYond the
upper l€vel line.
HOSE

Steering Gearbox
Installation (cont'dl
5. Install the stiffener plate with the two gearbox
mounting bolts and stiffener plate aftaching bolts.
CAUTION: Be sure the air tube is not caught orpinched by stiffener plate,
NOTE: Install the bolts loosely first, then tighten
them securely.
7.
8.
6.Install the return hose joint by tightening the l6 mm
flare nut.
Connect the relurn hose securely, and tighten the
adjustable hose clamp from the engine compart-ment.
Connect the feed line and tighten the 14 mm flare
nut.
NOTE: Make sure that there is no interference
between the fluid lines, the rear beam or any otherparts.
ADJUSTABLE HOSECLAMP(see page 17-39)
16 mm FLARE NUT28 N.m {2.9 ksl.m. 20 lbf.ft)
RETURN
1a mm FLARE NUT37 N.m (3.8 kg{.m, 27 lbt.ftl
ATTACHING AOLTS38 N.m 13.9 kgf.m, 28 lbf.ftl
MOUNTING BOLTS(} N.m (4.a kgt m, 32 lbf.ftl
17-66
9.Center the steering rack within its stroke.
Slip the lower end of the steering joint onto the pin-
ion shaft (line up the bolt hole with the groove
around the shaft), and tighten the upper and lower
steering joint bolt.
NOTE:
. Connect the steering shaft and pinion with the
cable reel and steering rack centered.. Be sure that the lower steering joint bolt is securely
in the groove in the steering gearbox pinion.
. lf the steering wheel and rack are not centered,
reposition the serrations at lower end of the
steering joint.
10.
STEERING JOINTUPPER BOLT22 N.m (2.2 kgf.m,16 tbt.ftl
PINION SHAFT
Groove,
STEERING JOINTLOWER BOLT22 N.m (2.2 kgt.m, 16lbtttl
11.Center the cable reel by first rotating it clockwise
until it stops. Then rotate it counterclockwise(approximately two turns) until the arrow mark onthe label points straight up. Reinstall the steeringwheel (see page 17 35).