2002 HONDA CIVIC ESP

Conventional Brake Components
Master Cylinder Inspection
NOTE:. Before reassembling, check that al I parts are f ree ofdust and other foreign particles.. Do nottryto disassemblethe mastercylinder
assembly. Replace the master cylinder assembly witha new part if necessary.. Do not allow dirt or foreign matter to contaminate thebrake fluid.
RESERVOIB CAPI unecK Ior otocKageof vent holes.
RESERVOIR
,--l RESERvOIR SEALCheck lor damaoe
RESERVOIR HOSESInspect hoses fordamage, leaks, anddeterioration.
r',,.J\+
v
MASTER CYLINDERCheck for leaks, rust, and damage
and deterioration.
STRAINERRemove accumulatedseotment.
19-16
Brake Booster Pushrod Clearance
Adjustment
SpecialTools Required
Pushrod adjustment gauge 07JAG-SD40100
NOTE: Brake booster pushrod-to-piston clearance mustbe checked and adjustments made, if necessarV, beforeinstalling the master cylinder.
1. Setthespecial tool (A) onthe mastercylinder bodv(B), push in the center shaft (C) until the top of itcontacts the end of the secondary piston {D) byturning the adjusting nut (E).
Without disturbing the center shaft's position,
installthe specialtool (A) backwards on the booster.
Install the master cylinder nuts (B), and tighten
them to the specified torque.
Connecl the booster in line with a vacuum gauge
{C) 0-101 kPa {0'-760 mmHg, 30 in.Hg) to thebooster's engine vacuum supply, and maintain anengine speed that will deliver 66 kPa (500 mmHg,20 in.Hg) vacuum.
15 N m {r.511 tbf.ftl

t
Wheel Sensors
The wheel sensors are the magnetic contactless type. As the gear pulser teeth rotate past the wheel sensor's magnetic
coil, AC current is generated. The AC frequency changes in accordance with the wheel speed. The ABS control unit
detects the wheel sensor signal frequency and thereby detects the wheel speed.
!t LOW SPEED
Wheel Speed and Modulator Control
8E!EEETqE VEJ!q!ESPEEq
5
PRESSURE
OUTLETVALVE 9p
OFF
INLETVALVE oN
OFF
MoroR I-,. ltlOFF
When the wheel speed drops sharply below the vehicle speed, the inlet valve closes and il necessary, the outlet valve
opens momentarily to reduce the caliper fluid pressure. The pump motor starts at this time. As the wheel speed is
restored, and the outlet valve closes, the inlet valve opens momentarily to increase the caliper fluid pressure.
GEAR PULSERWHEEL S€NSOR.r HIGX SPEED
19-41

Mirrors
Rearview Mirror Replacement
1. Turn the mirror base (A)90. in either direction.
Slide the rearview mirror (A) down toward thebottom of the windshield, then detach it from thespring (B) in the mount (C), and remove the
rearview mirror. Take care notto scratch the mirror
Dase.
3. lf necessary, remove the spring from the mount.
2.
20-16
4, Fit the mirror base over the mount, and secure themirror by turning the base 90".

Bumpers
Rear Bumper RemovaUlnstallation
NOTE:' Have an assistant help you when removing and installing the rear bumper.. Take care not to scratch the rear bumper and body.. When prying with a flat-tip screwdriver, wrap it with protective tape to prevent damage.. Put on gloves to protect your hands.
L Remove the rear bumDer as shown.
2. Installthe bumper in the reverse order of removal, and note these items:
. Make sure both rear side marker light connectors are plugged in properly.'Makesuretherearbumperengagesthehooksofthesidespacers,sidebrackets,andupperbracketsonboth
sides securely.. Make sure the upper spacers of the rear bumper engage the clips on the body securely.. Replace any damaged clips.
: Screw, 2
XJ
) : Clip,
?ri)
\sI
Fastener Locations
A>:Bolt,2 B
/h-
\-P-
) : Screw, 2
ffiI"-ut ^*
c>
SIDE BRACKET
UPPER SPACER
UPPER BRACKET
\
SIDE SPACER
:r
'-
A
AD
LEFT REAR SIDE MARKERLIGHT CONNECTOR
,6 x 1.0 mm/ 9.eN.n,/ 11.0 kgl m,./ 1.2tbt.ttl
a
\
CAP
REAR BUMPER
20-86

Body Electrical
General Troubleshooting Information (cont'd)
Check for loose retainer (A) and rubber seals (B).
The backs of some connectors are packed with
dielectric grease. Add grease if necessary. lf thegrease is contaminated, replace it.
lnsert the connector all the way and make sure it is
securelv locked.
Position wires so that the open end of the cover faces
oown.
22-4
Handling Wires and Harnesses. Secure wires and wire harnesses to lhe frame with
their respective wire ties at the designated locations.. Remove clips carefully; don't damage their locks (A).
Slip pliers (A) under the clip base and through the
hole at an angle, then squeeze the expansion tabs to
release the clip.
After installing harness clips, make sure the harness
doesn't interfere with any moving pans.
Keep wire harnesses away from exhaust pipes and
other hot parts, from sharp edges of brackets and
holes, and from exposed screws and bolts.
Seat grommets in their grooves properly {A). Do not
leave grommets distorted (B).
lt" /wl/
\--------\tfl r'---'..-
It
J
|,f . ./.ll t/
----E; F.'l/
I

Passenger's Door Wire Harness
Connector or TerminalRelCavitiesLocationConnectstoNotesPassenger's door lock actuatorPassenger's door speakerPassenger's power window motorPassenger's power window switchRight power mirror actuatorRighttweeterc514
6I51432
1
22256213
6
Passenger's doorPassenger's doorPassenger's doorPassenger's doorPassenger's doorPassenger's doorUnder right side of dash
Under right side of dash
Dashboard wire harness A(see page 22'26)Dashboard wire harness Alsee oeoe 22-26\
PASSENGER'S DOOR WIRE HABNESS
22-41

sRs
System Description (cont'dl
SRS Operation
The main circuit in the SRS unit senses and judges the force of impact and, if necessary. ignites the inflator charges. lf
battery voltage is too low or power is disconnected due to the impact, the voltage regulator and the back-up power
circuit, respectively, will keep voltage at a constant level.
For the SRS to operate:
Seat Belt Tensioners and Seat Belt Buckle Tensioners
(1) A front impact sensor must activate and send electric signals to the microprocessor.
(2) The microprocessor must compute the signals and send them to the tensioners.
(3) The charges must ignite and deploy the tensioners.
Driver's and Front Passenger's Airbagls)
(1) A front impact sensor musl activate. and send electric signals to the microprocessor.
(2) The microprocessor must compute the signals. and depending on the severity of the collision and whether the seat
belt buckle swilch is ON or OFF, it sends the appropriate signals to the airbag inflator(s).
(3) The inflators that received signals must ignite and deploy the airbags.
Side Airbaglsl( 1) A side impact sensor must activate, and send electric signals to the microprocessor.
(2) The microprocessor must compute the signals and send them to the side airbag inflator(s). However, the
microprocessor cuts off the signals to the front passenger's side airbag if the OPDS unit determines that the tront
passenger's head is in the deployment path of the side airbag.
(3) The inflator that received the signal must ignite and deploy the side airbag.
lw$ad..n sl
!J
T'sEcttoJn0mP gsfrlctR S oXrVEr S I9oEAiA$ SOtlr&G I
f'**)r !
23-32
\J