2003 HONDA CIVIC parking brake

PGM-Fl System
6.
1.
DTC Troubleshooting (cont'dl
DTC P0500: VSS Circuit Malfunction
1. Test-drive the vehicle.
2. Check the vehicle speed with the scan tool.
ls the correct speed indicated?
YES-lntermiftent failure, system is OK at this time.
Check for poor connections or loose terminals at
the VSS and at the ECM.I
NO Go to step 3.
3. Turn the ignition switch OFF.
4. Block the rear wheels, and set the parking brake.
5. Raise the front ofthe vehicle, and make sure it is
securely supported,
Turn the ignition switch ON (ll).
Block the right front wheel, and slowly rotate the
left front wheel.
8. Measure voltage between ECM connector
terminals A18 and A24.
ECM CONNECTOR A {31P)
Wire side of female terminals
Does the voltage pulse between 0 V and 5 V or
between 0V and battery voltage?
YES-Update the ECM if it does not have the latest
software, or substitute a known-good ECM. then
recheck (see page 1 1-6). lf the symptom/indication
goes away with a known-good ECM, replace the
original ECN4.l
NO Go to step 9.
11-80
9. Turn the ignition switch OFF.
10. Disconnect ECM connector A (3'1P).
1 1. Turn the ignition switch ON {ll}.
12. Blockthe right front wheel. and slowly rotate the
left front wheel.
'!3. lMeasure voltage between ECM connector
terminals A18 and A24.
ECM CONNECTOR A I31PI
Wire side of female terminals
Does the voltage pulse between 0 V and 5 V ol
between 0V and battety voltage?
YES Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 1 1-6). lf the symptom/indication
goes away with a known-good ECM, replace the
origlnal ECM.I
NO Check these items:
. A short or an open in the wire between the ECM
(A18) and the VSS.I. lf thewire is OK,testtheVSS (see page 22 71).1

ldle Control System
ldle Speed lnspection
NOTE:' Leave the idle air control (lAC) valve connecled.. Before checking the idle speed, check these items:- The malfunction indicator lamp (MlL) has not been
reported on.- lgnition timing- Spark plugs- Air cleaner- PCV system. Pullthe parking brake lever up. Start the engine, and
make sure the headlights are off.
1. Disconnect the evaporative emission (EVAP)
canister purge valve 2P connector.
2. Connect a tachometer (A)to the test tachometer
connector (B), or connect the Honda PGM Tester (C)
or an OBD ll scan tool to the data link connector(DLC) (D) located under the driver's side of the
dashboard.
11-138
4.
3.
5.
6.
Start the engine. Hold the engine at 3,000 rpm with
no load (in neutral) until the radiator fan comes on,
then let it idle.
Check the idle speed with no-load conditions;
headlights, blower fan, radiator fan, and air
conditioner off.
ldle speed should be: 750 t 50 rpm
Let the engine idle for 1 minute with the heater fan
switch on Hl and air conditioner on, then check the
idle speed.
ldle speed should be: 750 t 50 rpm
NOTE: lf the idle speed is not wilhin specification,
go to the Symptom Troubleshooting Index,
Reconnect the EVAP canister purge valve 2P
connector.

Front and Rear Suspension
WheelAlignment
The suspension can be adjusted for front camber, front
toe, and rear toe. However, each of these adjustments
are interrelated to each other. For example, when you
adjust the toe, the camber changes. Therefore, you
must adjust the front wheel alignment whenever you
adjust the camber or toe.
Pre-Alignment Checks
For proper inspection and adjustment of the wheel
alignment, do these checks:
1. Release the parking brake to avoid an incorrect
measurement.
Make sure the suspension is not modified.
Check the tire size and tire pressure
Tire size:
Front/rear: 195/60R15
Tire pressure:
Front: 230 kPa {2.3 kgf/cm',33 psil
Rear: 210 kPa |'2.1 kgf/cm', 30 psi)
Check the runout of the wheels and tires.
Check the suspension ball joints. (Hold a wheel
with your hands, and move it up and down and
right and left to check for wobbling),
2.
3.
Bounce the vehicle up and down several times to
stabilize the suspension.
18-4
Front Caster lnspection
Use commerciallv available comDuterized four wheel
alignment equipment to measure wheel alignment
(caster, camber, toe, and turning angle). Follow the
eouioment manufacturer's instructions.
Check the caster angle. lf the caster angle is not within
the specification, check for bent or damaged
susoensron comoonents.
Front caster angle: 1'40't 1"
\

Front Toe Inspection/Adjustment
Use commercially-available computerized four wheel
alignment equipment to measure wheel alignment(caster, camber, toe, and turning angle). Follow the
equipment manufacturer's instructions,
1. Center the steering wheel spokes.
2. Checkthetoe. lf it is not with in the specif ication, go
to step 3.
Front toe-in: 0 t 3 mm {0 t 0.12 in.)
3. Loosen the locknut (A) while holding the tie-rod end(B ).
A14x 1.5 mm,14 N.m(a.5 kgt m,33 lbt.ftl
5.
Turn the tie-rod (C) untilthe toe is correct.
After adjusting, tighten the locknut while holding
the tie-rod end. Make sure the toe setting does not
change.
1,;
Rear Toe Inspection/Adiustment
Use commercially-available computerized four wheel
alignment equipment to measure wheel alignment(caster, camber, toe, and turning angle). Follow the
equipment manufacturer's instructions.
1, Release the parking brake.
2. Checkthe toe. lf it is not within the specification. go
to step 3.
Rear toe-in {inspection):
1 1 3 mm (0.04 a 0.12 in.)
3. Loosen the self-locking nut (A)while holding the
adjusting bolt (B).
Do not loosen lhe special bolts (C) on the
lower arm to adjust the alignment.
4. Replace the self-locking nut with a new one, and
lightly tighten.
NOTE: Always use a new self-locking nut whenever
it has been loosened.
Turn the adjusting bolt until the toe is correct.
Rear toe.in (adiustment):
2 ' , mm {0.08 "' ,. in.}
Tighten the self-locking nut to the specified torque
while holding the adjusting bolt.
(cont'd )
18-7

1.Raise the rear of the vehicle, and support it with
safety stands in the proper location (see page 'l-8).
Remove the wheel cap. wheel nuts, and rear wheel.
108 N.m (11.0 kgf.m,80 lbf ftl
Remove the hub cap (A), raise the stake (B), and
remove the spindle nut (C).
O
\A
22 x 1,5 mm181 N.m(18.5 kgf.m, 134lbf.ftl
5.
7.
Release the parking brake lever.
Remove the brake hose mounting bolt (A).
B10 x 1.25 mm55NmC {5.6 kgf m.41 lbf.ft}
(2.2 kgt m, 16lbt.ftl
Remove the caliper bracket mounting bolts (B), and
hang the caliper (C) to one side. To prevent damage
to the caliper or brake hose, use a short piece of
wire to hang the caliper from the undercarriage.
Remove the brake disc retaining screws (A).
Screw two 8 x 1.25 mm bolts (B) into the disc {C) to
oush it awav from the hub. Turn each bolt two turns
at a time to prevent cocking the disc excessively.
Remove the brake disc.
(cont'd)
ap
t
\
IA6x1.0mm9.8 N.m(1.0 kgf.m, ?.2lbf.ftl
18-27

Rear Suspension
Hub Bearing Unit Replacement
(cont'd)
9. Remove the hub bearing unit (A) from the spindle.
Install the hub bearing unit in the reverse order of
removal, and note these items:
. Tighten all mounting hardware to the specified
torque values,. Before installing the brake disc, clean the mating
surface ot the hub and the inside of the brake
disc.. Use a new spindle nut on reassembly.. After tightening, use a drift to stake the spindle
nut shoulder against the spindle.. Use a new hub cap on reassembly.. Before installing the wheel, clean the mating
surface of the brake disc and the inside of the
wneel.
10.
,=,,,
18-28
Raise the rear of the vehicle, and suppon it with
safety stands in the proper location (see page 1-8).
Remove the rear wheels.
Remove the brake disc and hub bearing unit (see
step 1 on page 18-27).
Remove the flange bolts (A) and splash guard (B)
from the knuckle.
11.0 kgf.m, 7.2 lbf ft)
4. Remove the wheel sensor(A), braKe nose
mounting bracket (B), and parking cable mounting
bracket (C) from the knuckle. Do not disconnect the
wheel sensor connector.
8 x 1.25 mm22 N.m{2.2 kgf m, 16 lbf ftl
Knuckle Replacement
1.
6x1.0mm9.8 N,m{I.0 kgt.m,7.2 lbf ft)
tt

Brakes
Conventional Brake Components
Special Tools ... ..... ... l9-2
Component Location Index ......................................... 19-3
Brake System Inspection and
Tests ............... .......... 19-4
Brake Pedal and Brake Pedal Position Switch
Adjustment .............. 19-6
Parking Brake Check and
Adjustment .............. 19-7
Brake System Bleeding ...................... 19-8
Brake System Indicator Circuit
Diagram ................... 19-9
Parking Brake Switch Test ................. 19-10
Brake Fluid Level Switch Test ...................................... 19-10
Front Brake Pads lnsoection and
Replacement ........... 19-11
Front Brake Disc Inspection ............... 19-13
Front Brake Calioer Overhaul ...................................... 19-14
Master Cylinder Replacement ........... 19-15
Master Cylinder Inspection ................ 19-16
Brake Booster
Pushrod Clearance Adjustment ................................ 19-16
Brake BoosterTest ................... .......... 19-18
Brake Booster Reolacement .............. 19-19
Rear Brake Pads Inspection and
Reolacement ........... 19-20
Rear Brake Disc Inspection ................ 19-22
Rear Brake Caliper Overhaul ....................................... 19-23
Brake Hoses and Lines Insoection .... 19-24
Brake Hose Reolacement ................... 19-25
Parking Brake Cable Replacement .............................. 19-26
ABS (Anti-lock Brake System)
Gomponents ... 19-29

Component Location Index
FRONT BRAKESFront Brake Pads, Inspection andReplacement, page 19-1 1Front Brake DiscInspection, page 19'13Front Brake CaliperOverhaul, page 19-14
INDICATORBrake System Indicator CircuitDiagram, page 19-9Parking Brake SwitchTest, page 19 10Brake Fluid Level SwitchTest, page 19-10
BRAKE CABLE
BRAKE BOOSTERBrake BoosterTest, page 19-18Brake EoosterReplacement, page 19 19
Parking Brake CableReplacement, page 19 26
REAR DISC BRAKERear Brake Pads Inspection andReplacement, page l9-20Rear Brake DiscInspection, page 19'22Rear Brake Caliper Overhaul,page 19'23
PARKING BRAKE LEVERParkino BrakeCheck and Adjustment, page 19-7
BRAKE PEDALBrake Pedal and Erake Pedal Position SwitchAdjustment, page l9-6
BRAKE HOSES and LINESBrake Hoses and LinesInspection, page 19 24Brake HosesReplacement, page 19 25
MASTER CYLINDERMaster CylinderFl6^1.^6m6nr ^2^o 1O-18Master Cylinder Inspection, page 19-16Brake Booster Pushrod ClearanceAdjustment, page'19-16Brake System Bleeding, page 19-8
19-3