steering ACURA CSX 2006 Service Manual Online

SymptomProbable cause
17-78EPS Components
Steering Gearbox Removal and Installation (cont’d)
34. Install the steering wheel (see page 17-8).
35. With the tires raised off the ground (vehicle on a
lift), check for the following symptoms by turning
the steering wheel fully to the right and left several
times.
Rubbing sound
coming from the
lower steering
column area. Steering column joint
is contacting the cover.
Grating sound from
the lower steering
column area, or a
rough feeling during
steering. Poor engagement of
the pinion shaft
serrations.
Noise from around
the steering wheel
during steering. Poor engagement of
the SRS cable reel with
the steering wheel, or a
damaged cable reel.
36. Install the air cleaner housing (see page 11- 345).
37. Install the under cowl panel and cowl cover (see page 20-163). 38. Do the battery terminal reconnection procedure
(see page 22-68), and do these tasks:
 Turn the ignition switch to ON (II) and check that the SRS indicator comes on for about 6 seconds
and then goes off.
 Make sure the horn and turn signal switches work properly.
 Make sure the steering wheel switches work properly.
39. After installation, do the following checks:  Check the steering wheel spoke angle. If steeringspoke angles to the right and left are not equal
(steering wheel and rack are not centered),
correct the engagement of the joint/pinion shaft
splines.
 Set the steering column to the center tilt position, and to the center telescopic position, then check
the wheel alignment and adjust (see page 18-5).
 Make sure the steering wheel spokes are centered.
 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.
 Do the memorizing for the torque sensor neutral position (see page 17-22).
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Exploded view
17-79
Rack End Removal and Installation
O-RING
TORQUE SENSOR
CONNECTOR
8x1.25mm
20 N·m
(2.0 kgf·m, 14 lbf·ft)
EPS MOTOR
6x1.0mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft)
LOCKNUT
RACK GUIDE
DISC WASHER
O-RING
SPRING
GEARBOX MOUNT CUSHION GEARBOX HOUSING
MOUNT CUSHION
TIE-ROD CLIPLOCKNUT
14 x 1.5 mm
44 N·m
(4.5 kgf·m, 33 lbf·ft)
BOOT
BOOT BAND
RACK END
93 N·m
(9.5 kgf·m, 69 lbf·ft)
LOCK WASHER
RUBBER STOP GROUND
TERMINAL
TORQUE SENSOR ASSEMBLY
RACK GUIDE
SCREW
HARNESS BRACKET
(cont’d)
Replace.
If the EPS motor is
faulty, replace it.
Replace.
Inspect for damage and deterioration.
Inspect for damage and deterioration.
Inspect for damage and deterioration.
Replace.
Inspect for faulty
movement and damage.
Replace.
Replace. If the torque sensor is damaged,
replace the steering gearbox
as an assembly.
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Removal
17-80EPS Components
Rack End Removal and Installation (cont’d)
B
A A
E
D A
B
C
NOTE: Do not allow dust, dirt, or other foreign materials
to enter the steering gearbox. 1. Remove the boot bands (A), and discard them. Remove the tie-rod clips (B), and pull the boots
away from the ends of the gearbox. 2. Unbend the lock washer (A).
3. Hold the surface sections (A) of the steering rack (B)
with one wrench, and unscrew both rack ends (C)
with another wrench. Be careful not to damage the
rack shaft surface with the wrench.
4. Remove the lock washer (D) and rubber stop (E).
Replace.
Replace.
Replace.
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Installation
17-81
A
B C
D
E
93 N·m
(9.5 kgf·m,
69 lbf·ft)
A
B A
B
(P/N 08798-9013)
1. Install a new rubber stop (A) and a new lock washer (B). Align the lock washer tabs (C) with the slots (D)
on the rack end (E) while holding the lock washer in
place. Repeat this step for the other side of the rack
shaft.
2. Hold the flat surface sections of the steering rack with one wrench, and tighten both rack ends with
another wrench. Be careful not to damage the rack
surface with the wrench.
3. Bend the lock washer (A) back against the flat spots (B) on the rack end ball joint housing. 4. Apply multipurpose grease to the circumference of
the rack end joint housing (A) and lock washer.
5. Apply a light coat of silicone grease (P/N 08798-9013) to the boot fitting grooves (B) on the
rack ends.
NOTE: Make sure not to get any silicone grease on
the terminal part of the connectors and switches,
especially if you have silicone grease on your
hands or gloves.
(cont’d)
Replace.
Replace.
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17-82EPS Components
Rack End Removal and Installation (cont’d)
A
B
C
D A
B
BA4mm
(0.16 in.)
6. Center the steering rack within its stroke.
7. Clean off any grease or contamination from the boot installation grooves (A) around the gearbox
housing. Install the boots (B) on the rack ends with
the tie-rod clips (C), and fit the boot end in the
installation grooves in the housing properly.
8. After installing the boots, wipe the grease off the
thread section (D) of the rack end. 9. Install the new boot bands by aligning the tabs (A)
with the holes (B) of the band.
10. Close the ear portion (A) of the band with commercially available pincers Oetiker 1098 or
equivalent (B).
11. Slide the rack shaft right and left to be certain that the boots are not deformed or twisted.
08/08/21 14:55:29 61SNR030_170_0083
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17-83
Rack Guide Removal/Installation
A
B C
D
E
F
NOTE: During removal/installation, do not allow dust,
dirt, or other foreign materials to enter the steering
gearbox. 1. Remove the steering gearbox (see page 17-65).
2. Loosen the locknut (A), then remove the rack guide screw (B), the spring (C), the disc washer (D), and
the rack guide (E).
3. Remove the O-ring (F) from the rack guide. Wipe the grease off the sliding surface of the rack guide. 4. Apply multipurpose grease to the new O-ring, then
install it to the rack guide.
5. Apply multipurpose grease to the sliding surface and the circumference of the rack guide, and install
it onto the gearbox housing. Wipe the grease off
the threaded section of the housing.
6. Apply multipurpose grease to both ends of the spring, and install it onto the gearbox housing.
7. Install the disc washer with its convex side facing the rack guide.
8. Remove the old sealant from the rack guide screw and apply new sealant (Three Bond 1215 or Loctite
5699) to the middle of the threads. Loosely install
the rack guide screw on the steering gearbox.
NOTE: If more than 5 minutes has passed after
applying the sealant, remove the old sealant and
residue, and apply new sealant.
9. Loosely install the locknut.
10. Adjust the rack guide screw (see page 17-15). After adjusting, check that the rack moves smoothly by
sliding the rack right and left.
Replace.
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17-84EPS Components
EPS Control Unit Removal/Installation
A
B
C D
F
E
6x1.0mm
9.8 N·m
(1.0 kgf·m,
7.2 lbf·ft)
1. Do the battery terminal disconnection procedure (see page 22-68).
2. Remove the passenger’s dashboard lower cover (see page 20-102).
3. Remove the passenger’s side kick panel (see page 20-66).
4. Disconnect EPS control unit connectors A (2P), connector B (2P), connector C (2P), and connector D
(28P).
5. Remove the nuts (E) from the EPS control unit (F).
6. Remove the EPS control unit. 7. Install the EPS control unit in the reverse order of
removal.
8. Do the battery terminal reconnection procedure (see page 22-68), and do these tasks:
 Make sure the horn and turn signal switches work properly.
 Make sure the steering wheel switches work properly.
 If the EPS control unit is replaced, the EPS control unit must memorize the torque sensor neutral
position (see page 17-22).
9. 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.
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Pre-Alignment Checks
Caster Inspection
Tire size (’06-08 models):Except Type S model:Front/Rear: P205/55R16 89H
Type S model: Front/Rear: P215/45R17 87V
Tire size (’09 model): Front/Rear: P215/45R17 87V
Tire Pressure (’06-08 models) (at cold): Except Type S model:Front/Rear: 220 kPa (2.2 kgf/cm , 32 psi)
Type S model: Front/Rear: 230 kPa (2.3 kgf/cm , 33 psi)
Tire Pressure (’09 model) (at cold): Front/Rear: 230 kPa (2.3 kgf/cm , 33 psi) Caster angle: 7 ° 00 ’ 1 °
2
2
2
18-5
Wheel Alignment
The suspension can be adjusted for front camber, front
toe, and rear toe. However, each of these adjustments
are related to each other. For example, when you adjust
camber, the toe will change. Therefore, you must adjust
the front wheel alignment whenever you adjust camber
or toe.
For proper inspection and adjustment of the wheel
alignment, do these checks: 1. Release the parking brake to avoid an incorrect measurement.
2. Make sure the suspension is not modified.
3. Make sure the fuel tank is full, and that the spare tire, the jack, and the tools are in place on the
vehicle.
4. Check the tire size and tire pressure.
5. Check the runout of the wheels and tires (see page 18-9). 6. Check the suspension ball joints (Hold a tire with
your hands, and move it up and down and right and
left to check for movement).
7. Before doing alignment inspections, be sure to remove all extra weight from the vehicle, and no
one should be inside the vehicle (driver or
passengers).
8. Bounce the vehicle up and down several times to stabilize the suspension.
9. Check that the steering column is set at the center tilt and telescopic position.
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. Check the caster angle.
 If the measurement is within specifications,measure the camber angle.
 If the measurement is not within specifications, check for bent or damaged suspension
components.
(cont’d)
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¶¶
Front Toe Inspection/Adjustment
Front toe-in: 0 2 mm (0 0.08 in.)
18-7
B
A
14x1.5mm
90 N·m
(9.2 kgf·m,
67 lbf·ft)A
14x1.5mm
44 N·m (4.5 kgf·m, 33 lbf·ft)
BC
7. Measure the camber angle.
 If the measurement is within specification,measure the toe.
 If the measurement is not within specification, go to step 8.
8. Raise the front of the vehicle, and support it with safety stands in the proper locations (see page
1-11).
9. Remove the front wheels.
10. Replace the damper pinch bolts with the adjusting bolts (A), and adjust the camber angle.
NOTE: Install the washers (B) included adjusting bolt set between the front damper and self-locking nut.
 The camber angle can be adjusted up to 25 ’ (center of tolerance) by replacing one damper
pinch bolt with the adjusting bolt.
 The camber angle can be adjusted up to 50 ’ by replacing both damper pinch bolts with the
adjusting bolts.
11. Tighten the adjusting bolts to the specified torque value.
12. Clean the mating surfaces of the brake disc and the inside of the wheel, then install the front wheels.
13. Lower the vehicle to the ground, and bounce the front of the vehicle up and down several times to
stabilize the suspension.
14. Measure the camber angle. If the camber angle is not within specification, repeat steps 8 through 13
to readjust the camber angle. If the camber
measurement is correct, measure toe-in, and adjust
it if necessary. 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. Set the steering column to the middle tilt and center telescopic positions. Center the steering
wheel spokes, and install a steering wheel holder
tool.
2. Check the toe with the wheels pointed straight ahead.
 If adjustment is required, go to step 3.
 If no adjustment is required, go to rear toe inspection/adjustment.
3. Loosen the tie-rod locknuts (A) while holding the flat surface sections (B) of the tie-rod end with a
wrench, and turn both tie-rods (C) until the front toe
is within specifications.
4. After adjusting, tighten the tie-rod locknuts to the specified torque value. Reposition the rack-end
boot if it is twisted or displaced.
5. Go to rear toe inspection/adjustment.
(cont’d)
Replace.Replace.
Replace.
08/08/21 14:56:46 61SNR030_180_0007
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) Component Inspections:Component Procedure Also check for
Brake pedal sinks/fades when braking
Brake System Test
19-4 Conventional Brake Components
Brake System Inspection and Test
Inspect the brake system components listed. Repair or replace any parts that are leaking or damaged.










Master Cylinder Look for damage or signs of fluid leakage at:
Reservoir tank, subreservoir or master
cylinder body.
Lines, reservoir tank hose and grommets,
and their joints.
Between master cylinder and booster. Bulging seal at reservoir cap. This is a
sign of fluid contamination.
Brake Hoses Look for damage or signs of fluid leakage at: Line joints and banjo bolt connections.
Hoses and lines, also inspect for twisting or
damage. Bulging, twisted, or bent lines.
Caliper Look for damage or signs of fluid leakage at: Piston seal.
Banjo bolt connections.
Bleed screw. Seized or sticking caliper pins.
ABS or VSA
Modulator-control
Unit Look for damage or signs of fluid leakage at:
Line joints.
Modulator-control unit.
1. Set the parking brake, and start the engine, then turn off the A/C. Allow the engine to warm up to normal operating temperature (radiator fan comes on twice).
2. Attach a 50 mm (2 in.) piece of masking tape along the bottom of the steering wheel, and draw a horizontal reference mark across it.
3. With the transmission in neutral (M/T) or P or N (A/T), press and hold the brake pedal lightly (about the same pressure needed to keep an A/T-equipped vehicle from creeping), then release the parking brake.
4. While still holding the brake pedal, hook the end of the tape measure behind the brake pedal, then pull the tape up to the steering wheel. Note the measurement between the brake pedal and the reference mark on the steering
wheel.
5. Apply steady pressure to the brake pedal for 3 minutes.
6. Watch the tape measure.  If the measurement increases 10 mm (0.39 in.) or less, the master cylinder is OK.
 If the measurement increases more than 10 mm (0.39 in.), replace the master cylinder.
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