steering HONDA CIVIC 2002 7.G Service Manual

EPS Components
DTC Troubleshooting (cont'd)
DTC 69: EPS Control Unit Internal Circuit
1. Clear the DTC.
2. Start the engine.
3. Turn the steering wheel from lock-to-lock several
times, and wait 10 seconds or more,
Does the EPS indicator come on?
YES Go to step 4.
NO-Check for loose wires or poor connections. lf
the connections are good, the system is OK at this
time.l
4. Stop the engine, and verify the DTC.
ls DTC 69 indicated?
YES-Check for loose or poor connections at the
EPS control unit. lf the connections are good,
substitute a known-good EPS control unit. lf the
symptom/indication goes away, replace the
original EPS control unit and recheck.l
NO- Perform the appropriate troubleshooting for
the code indicated.l
17-46

EPS Components
(Motor RemovaUlnstallation (cont'dl
lnsiallation
7. Clean the mating surface of the motor (A) and
gearbox.
Apply a thin coat of silicone grease (P/N 08733-
8070E)to the new O-ring (B), and carefully fit it on
the motor.
Apply grease {Nippon Grease WR-S or equivalent
steering gear grease) into the motor shaft (C).
qE
8 x '1.25 mm20 N.m12.0 kgt.m,7 .2lbl ftl
L==-c].E@
9.
17-50
r0.Install the motor on the gearbox by engaging the
motor shaft and worm shaft (D). Note the motor
installation position {direction of motor wires).
Before tightening the bolts, turn the motor two or
three times right and left about 45 degrees. lvlake
sure the motor is evenly seated on the steering
gearbox and that the O-ring is not pinched betlveen
the mating surfaces.
Installthe removed Darts in the reverse order of
removal. and note these items:
lvlake sure the motor 2P connector is properly
connected.
lvlake sure the motor and EPS wires are not
caught or pinched by any parts.
Reconnect the negative cable to the battery.
Do the engine control module (ECM) idle learn
procedure (see page 11-139).
Enter the anti-theft code for the radio station
Dresets. Reset the clock,
Do the oower window control unit reset
procedure (see page 22-1241.
After installation, start the engine, and let it idle.
Turn the steering wheel from lock-to-lock several
times. Check that the EPS indicator does not come
on.
11.
12.
13.

Steering Gearbox Removal
Special Tool Required
Ball ioint remover,2S mm 0TlvlAC-S100200
1. Raise the front of vehicle, and make sure it is
securely supponed.
2. Remove the front wheels.
Remove the driver's airbag (seepage23-113).
Remove the steering wheel (see page 17-6).
Remove the motor on the steering gearbox (see
page l T-49).
Remove the driver's dashboard lower cover (see
page 20-59) and under cover {see page20-60).
Remove the steering joint bolts (A), and disconnect
the steering joint by moving the steering joint (B)
toward the column.
4.
5.
6.
7.
'il
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l- '/
,a.: --L -
8. Remove the cotter pin (A)from the tie-rod balljoint
nut {B), and loosen the nut.
r0 mm HEX NUT07MAC-S100200
Separate the tie-rod balljoint and damper steering
arm using the special tool (see page 18-10). Repeat
on the other side of the vehicle.
Grasp the right side tie-rod, and pull the rack all the
way to the passenger's side,
Remove the heat shield (A) mounting bolts from
the body stiffener, and let the heat shield lay
against the exhaust.
11.
9.
10.
(cont'd)
17-51

EPS Components
Steering Gearbox Removal (cont'd)
Disconnect the EPS wire harness 6P connector (A),
and remove the EPS wire harness (B) and mountino
bracket (C).
12.
Remove the ground cable terminal (A) from the
steering gearbox housing.
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.,/ a
b-H\
ry T,-.lt'^ \
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13.
_-1..1.-'
-a--zii F--_1
17-52
14. Remove the engine wire harness clamps {A)fromthe three mounting brackets.
Remove the heater hose {B) from the bracket.
Open the heater valve cable clamp (A), and
disconnect the heater valve cable (B). Remove theheater valve (C) from the bulkhead, and move jt
aside.
t5.
16.
I

17. Remove the bodv stiffener (A).
Remove lhe steering stiffener A from the left side
of the steering gearbox.
18.
19. Remove the steering stiffener B from the right side
of the steering gearbox.
i t1-:: .,
20. Lower the steering gearbox, and rotate it so the
pinion shaft points upward.
21. Remove the pinion shaft grommet (A) from the top
of the torque sensor.
(cont'd)
17-53

EPS Components
Steering Gearbox Removal {cont'd)
22. Move the steering gearbox and tie-rod ends as anassembly to the wheelwell opening on thepassenger's side.
23. Carefully raise the driver's side (pinion side) ofthesteering gearbox (A) and tie-rod (B) until clears themaster cylinder and under-hood fuse relay box,
then remove the steering gearbox. Be careful not to
damage the hoses, lines and wtre narnesses.
17-51

I x '1.25 mm20 N.m (2.0 kgf.m,7.2lbt ftl
O.RINGReplace.
PINION SHAFT GROMMET
-'t ''
v
\>--. i-*\{i#r^i
. s(./t' J
SLTDER GUIDE
-l
\
{^il stot *,tttc
\J" Renrace
LocK scREw '162 N.m lto.s rgf m,119lbf ft)
BOOTBAND Beqtace.
- Replace.
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II
ASHER
rtE54
TIE.ROD END
CONNECTOR
Steering Gearbox Overhaul
Exploded View
RACK GUIDE
6^:,;
BOOT BAND '"''/
Beplace.
. -@ -sPRrNG. DISC WASHEB @'---g
L)-RACKGUIDE SCREW
6v---\' \.oc**u.
SRACKET
LOCK WReplace.
-RODN m {5.5 kgf.m,40lbf ft)
kgf.m,
(cont'd)
17-55
33 tbt.ft)44 N m {4.5

EPS Components
Steering Gearbox Overhaul (cont'dl
Special Tools Required. Locknut wrench 07ZAA-S5A0100. Pincers, Oetiker 1098 or equivalent, commercially
available.
NOTE:. Refer to the Exploded View as needed during thisprocedure.
. Do not allow dust, dirt, or other foreign materials toenter into the steering gearbox.
Eemoval
1, Remove the steering gearbox (see page 17-b1).
Disassembly
2. Unbend the lock washer (A).
. - -,'i.
Hold the bracket (A) with one wrencn, anq unscrewboth tie-rod ends (B) with another wrench. Removethe lock washers.
17-56
4. Remove the stop plate (A). the 12 mm flange bolts(B), the O-rings (C), and the bracket (D) from thesleering gearbox.
Loosen the locknut (A), then remove the rack guide
screw (B), sprlng (C), disc washer (D), and rackguide (E) from the steering gearbox.
i::..:4,. , -- -. - :.--. '

6. Remove the two boot bands (A) from boot (B).
Compress the boot by hand, and apply vinyl tape
(C) so the boot ends stay collapsed and pulled back
Attach the yoke (A) of a universal puller to the
steering gearbox mounts with bolts. Securely
clamp the yoke in a vise as shown. Do not clamp
the steering gearbox housing in the vise.
1.
10.
8. Installthe special tool (A) on the lock screw (B)
securely. then loosen and remove the lock screw
from the steering gearbox housing.
07zAA-S5A0r00
Remove the special tool.
Pull on the rack housing (A) to remove it from the
steering gearbox housing, Remove the boot {B) and
slider guide (C) from the cylinder.
(cont'd)
17-57

EPS Components
Steering Gearbox Overhaul (cont'd)
'll. Check the slider guide for damage and cracks.Using vernier calipers to measure the thickness ofthe slider guide. lf the thickness is less than servicelimit, replace the slider guide,
f Z,-----:-r-.--------.t.t'E-r
I (fr--', -.----
/i Il il ( t t , ,)))
|i@r
25.3 mm{0.925 in.}
Remove and discard the stop ring {A)on the
cylinder by expanding it with snap ring pliers.
Remove and discard the lock screw {B}.
13. Install the new lock screw on the rack housing.
14. Installthe new stop ring in the groove (C)on thecylinder by expanding it with a snap ring pliers. Becareful not to scratch or damage the housing
surface with the stop ring edges.
25.3 mm{0.925 in.l
12
17-58
15. Apply multipurpose grease to the indicated part
{shaded part) of the outer surface of the rackhousing. Do not apply to the dents and grooves.
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