engine ACURA CSX 2006 Service Repair Manual

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Exploded View
16-11
Driveshaft Reassembly
SET RINGINBOARD JOINT ROLLERS
SPIDER DOUBLE LOOP BANDS
(Replacement parts only)
INBOARD BOOT
LOW PROFILE BANDS DOUBLE LOOP BAND
(Replacement part only)
DRIVESHAFT STOP RING
LOW PROFILE BAND
DYNAMIC DAMPER
K20Z2 engine model
(left driveshaft)
OUTBOARD BOOT OUTBOARD JOINT
EAR CLAMP BANDS
CIRCLIP
Right driveshaft
K20Z3 engine model
(cont’d)
Replace. Replace.
Use the grease included
in the inboard boot set.
Replace.
Use the grease included
in the inboard boot set.
Replace.
Replace.
Replace.
Replace.
Use the grease included
in the outboard boot set.
Replace.
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Grease quantity
Inboard joint:K20Z2 engine model: 112 132 g (4.0 4.7 oz)
K20Z3 engine model: 180 200 g (6.3 7.0 oz)
16-13
A A
B
C
A
6. Pack the inboard joint with the joint greaseincluded in the new inboard boot set.
7. Fit the inboard joint onto the driveshaft and note these items:
 Reinstall the inboard joint onto the driveshaft by aligning the marks (A) you made on the inboard
joint and the rollers.
 Hold the driveshaft so the inboard joint is pointing up to prevent it from falling off. 8. Fit the boot ends (A) onto the driveshaft (B) and the
inboard joint (C).
(cont’d)
Use the grease included
in the inboard boot set.
08/08/21 14:51:26 61SNR030_160_0013
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Left driveshaft
Right driveshaft
Model Left/Right Driveshaft Specified Length (A)
16-14Driveline/Axle
Driveshaft Reassembly (cont’d)
A
A A
B C
A B
9. Adjust the length (A) of the driveshaft to the figure
as shown, then adjust the boots to halfway
between full compression and full extension. Bleed
excess air from the boots by inserting a flat-tipped
screwdriver between the boot and the joint.
K20Z2
engine
model Left 505.5 510.0 mm
(19.88 20.08 in.)
Right 493.0 498.0 mm (19.41 19.61 in.)
K20Z3
engine
model Left 511.0 516.0 mm
(20.12 20.31 in.)
Right 486.8 491.8 mm (19.17 19.36 in.)
10. Install new boot bands.
 For the double loop type, go to step 11.
 For the low profile type, go to step 20. 11. Fit the boot ends onto the driveshaft and the
inboard joint, then install a new double loop band
(A) onto the boot (B).
NOTE: Pass the end of the new double loop band
through the clip (C) twice in the direction of the
forward rotation of the driveshaft.
12. Pull up the slack in the band by hand.
13. Mark a position (A) on the band 10 14 mm (0.4 0.6 in.) from the clip (B).
Replace.
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Total grease quantity
Outboard joint:K20Z2 engine model: 120 140 g (4.2 4.9 oz)
K20Z3 engine model: 110 130 g (3.8 4.5 oz)
16-18Driveline/Axle
Driveshaft Reassembly (cont’d)
10 cm
(4 in.)
A
B A A
B
C A
A
7. To completely seat the outboard joint, pick up the driveshaft and joint, and tap or hit the assembly
onto a hard surface from a height of about 10 cm
(4 in.).
NOTE: Do not use a hammer as excessive force
may damage the driveshaft. Be careful not to
damage the threaded section (A) of the outboard
joint.
8. Check the alignment of the paint mark (A) you made with the outboard joint end (B).
To avoid driveshaft and vehicle damage, the
shaft must be all the way into the outboard
joint to ensure the stop ring is properly
seated. 9. Pack the outboard joint (A) with the remaining
grease included in the new outboard boot set.
10. Fit the boot ends (A) onto the driveshaft (B) and outboard joint (C). Bleed any excess air from the
boot by inserting a flat-tipped screwdriver between
the boot and the joint.
Use the grease included
in the outboard boot set.
08/08/21 14:51:29 61SNR030_160_0018
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Left driveshaft
Right Driveshaft
Model Left/Right Driveshaft Specified Length (A)
16-19
A
A B
A 6.0 mm
(0.24 in.) MAX.
3.0 mm (0.12 in.) MAX.
11. Inspect the length (A) of the driveshaft to the figure as shown, then adjust the boots to halfway
between full compression and full extension.
K20Z2
engine
model Left 505.5 510.0 mm
(19.88 20.08 in.)
Right 493.0 498.0 mm (19.41 19.61 in.)
K20Z3
engine
model Left 511.0 516.0 mm
(20.12 20.31 in.)
Right 486.8 491.8 mm (19.17 19.36 in.) 12. Close the ear portion (A) of the band using
commercially available boot band pliers
(Kent-Moore J-35910 or equivalent) (B).
13. Check the clearance between the closed ear portion of the band. If the clearance is not within the
standard, close the ear portion of the band tighter.
14. Repeat steps 12 and 13 for the band on the other end of the boot.
08/08/21 14:51:30 61SNR030_160_0019
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Grease quantity
K20Z2 engine model: 0.5 1.0 g (0.02 0.04 oz)
K20Z3 engine model: 2.0 3.0 g (0.08 0.12 oz)
16-20Driveline/Axle
Driveshaft Installation
(P/N 08734-0001) A
A B A
B
A
(P/N 08798-9002)
NOTE: Before starting installation, make sure the
mating surfaces of the joint and the splined section are
clean.
1. Apply about 5 g (0.18 oz) moly 60 paste (P/N 08734-0001) to the contact area (A) of the
outboard joint and the front wheel bearing.
NOTE: The paste helps to prevent noise and
vibration.
2. Install a new set ring (A) onto the set ring groove (B) of the driveshaft (left driveshaft). 3. Install a new set ring (A) onto the set ring groove
(B) of the intermediate shaft.
4. Apply super high temp urea grease (P/N 08798-9002) to the whole splined surface (A) of
the right driveshaft. After applying grease, remove
the grease from the splined grooves at intervals of
2 3 splines and from the set ring groove (B) so
that air can bleed from the intermediate shaft.
Replace.
08/08/21 14:51:31 61SNR030_160_0020
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16-22Driveline/Axle
Driveshaft Installation (cont’d)
B
A
K20Z2 engine model:
22x1.5mm
181 N·m
(18.5 kgf·m, 134 lbf·ft)
K20Z3 engine model:
24x1.5mm
245 N·m
(25.0 kgf·m, 180 lbf·ft)
9. Apply small amount of engine oil to the seating surface of new spindle nut (A).
10. Install the spindle nut, then tighten it. After tightening, use a drift to stake the spindle nut
shoulder (B) against the driveshaft.
11. Clean the mating surfaces of the brake disc and the wheel, then install the front wheels.
12. Turn the front wheel by hand, and make sure there is no interference between the driveshaft and
surrounding parts. 13. Refill the transmission with the recommended
transmission fluid:
 5-speed manual transmission (see page 13-5)
 6-speed manual transmission (see page 13-82)
 Automatic transmission (see page 14-232)
14. Lower the vehicle on the lift.
15. Check the wheel alignment, and adjust it if necessary (see page 18-5).
16. Test-drive the vehicle.
Replace.
Replace.
08/08/21 14:51:45 61SNR030_160_0022
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Rotational play: 0 10 mm (0 0.39 in.)
17-417-4 Steering
Steering Wheel Rotational Play
Check
Power Assist Check
1. Turn the front wheels to the straight ahead position.
2. Measure how far you can turn the steering wheel
left and right without moving the front wheels.
 If the play is within the limit, the steering gearbox and steering linkage are OK.
 If the play exceeds the limit, adjust the rack guide (see page 17-15). If the play is still excessive after
rack guide adjustment, inspect the steering
linkage and steering gearbox (see page 17-5). NOTE: This test should be done with original equipment
tires and wheels at the correct tire pressure.
1. Start the engine, and let it idle.
2. Attach a commercially available spring scale to the steering wheel. With the engine idling and the
vehicle on a clean, dry floor, pull the scale as
shown, and read it as soon as the tires begin to turn.
3. Ifthescalereadsnomorethan34N(3.5kgf,7.7lbf), the power assist is OK. If it reads more, check these
items:
 Steering linkage (see page 17-5)
 Rack guide adjustment (see page 17-15)
 EPS system (see page 17-19)
08/08/21 14:53:13 61SNR030_170_0005
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EPS IndicatorDiagnostic Trouble Code (DTC)
Self-diagnosis
17-19
General Troubleshooting Information
Under normal conditions, the EPS indicator comes on
when the ignition switch is turned to ON (II), then goes
off after the engine is started. This indicates that the
LED and its circuit are operating correctly.
If there is a failure in the system after the engine is
started, the EPS indicator will stay on, and the power
assist is turned off or restricted.
When the EPS indicator comes on, the control unit
memorizes the DTC. In this case, the control unit will
not activate the EPS system after the engine starts
again, but it keeps the EPS indicator on.
When DTC 51-01, 51-02 or 51-06 is stored in the control
unit, the EPS indicator will stay on until the DTC is
erased. When a problem is detected and the EPS
indicator comes on, there are cases when the indicator
stays on until the ignition switch is turned to LOCK (0),
and cases when the indicator goes off automatically
when the system returns to normal. Even though the
system is operating normally, the EPS indicator will
come on under the following conditions:  The vehicle speed decreases abruptly from 20 km/h (12 mph) or more (by applying brake), and it is less
than 1 km/h (1 mph) and engine speed is 2,000 rpm or
above for 5 seconds (continuously) after the abrupt
deceleration.
 While turning the steering wheel with the vehicle speed of 1 km/h (1 mph) or less for 20 seconds, and
the engine speed is 2,000 rpm or above for at least
10 seconds.
 When the engine speed is 500 rpm or less, and the vehicle is traveling at a speed of 10 km/h (6 mph) or
more for about 3 seconds.
To determine the actual cause of the problem, question
the client about the conditions during which the
problem occurred, taking the above conditions into
consideration.  If the CPU cannot be activated, or it fails, the EPS
indicator comes on, but the DTC is not memorized.
 The memory can hold any number of DTCs. However, when the same DTC is detected more than once, the
most recent DTC is written over the prior DTC,
therefore only one occurrence is memorized.
 The lowest DTC is indicated first. The DTCs are indicated in ascending order, not in the order that
they occurred.
 The DTCs are memorized in the EEPROM (non- volatile memory) therefore the memorized DTCs
cannot be erased by disconnecting the battery. Do the
specified procedures to clear the DTCs.
Self-diagnosis can be classified into three categories:  Initial diagnosis: Done right after the engine starts and until the EPS indicator goes off.
 Regular diagnosis: Done right after the initial diagnosis until the ignition switch is turned to LOCK
(0).
 Steering diagnosis: Done during regular diagnosis while turning the steering wheel.
The EPS control unit dose these functions when a
problem is detected by self-diagnosis: 1. Turns on the EPS indicator.
2. Memorizes the DTC.
3. Stops power assist and manual steering operation resumes.
NOTE: For DTCs 11-01, 11-02, 12-01, 21-01, 21-02,
22-01, and 35-04 the EPS indicator will go off
automatically, and the system returns to normal.
(cont’d)
08/08/21 14:53:21 61SNR030_170_0020
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DTC Detection Item Note
17-23
DTC Troubleshooting Index
11-01 Low/High IG1-terminal Voltage (Initial Diagnosis)
(see page 17-33)
11-02 Low/High IG1-terminal Voltage (Regular Diagnosis) (see page 17-33)
12-01 Low/High VBU Voltage (Regular Diagnosis) (see page 17-34)
21-01 Excessive Change of the Vehicle Speed Signal (Regular Diagnosis) (see page 17-35)
21-02 Comparison between the Vehicle Speed and the Engine Speed Signal (Regular Diagnosis) (see page 17-35)
22-01 Engine Speed Signal (Initial Diagnosis) (see page 17-37)
31-01 No Writing the Torque Sensor Neutral Position (Initial Diagnosis) (see page 17-22)
32-01 EPS Control Unit Internal Circuit (Current Sensor) (Initial Diagnosis) (see page 17-39)
32-02 EPS Control Unit Internal Circuit (Current Sensor) (Regular Diagnosis) (see page 17-39)
32-07 EPS Control Unit Internal Circuit (Current Sensor) (Steering Diagnosis) (see page 17-39)
32-08 Current Sensor (Regular Diagnosis) (see page 17-40)
32-09 Current Sensor (Initial Diagnosis) (see page 17-40)
33-01 Lower FET Stuck ON (Initial Diagnosis) (see page 17-41)
33-02 Upper FET Stuck ON (Initial Diagnosis) (see page 17-43)
33-06 Lower FET Stuck ON (Regular Diagnosis) (see page 17-41)
33-07 Upper FET Stuck ON (Regular Diagnosis) (see page 17-43)
34-01 Power Relay Stuck ON (Ignition Switch is in LOCK (0)) (see page 17-44)
34-02 Fail-safe Relay Stuck ON (Initial Diagnosis) (see page 17-45)
35-01 EPS Control Unit Internal Circuit (CPU) (Initial Diagnosis/Regular Diagnosis) (see page 17-39)
35-02 EPS Control Unit Internal Circuit (EEPROM) (Initial Diagnosis) (see page 17-39)
35-03 EPS Control Unit Internal Circuit (EPS CPU) (Initial Diagnosis) (see page 17-46)
35-04 EPS Control Unit Internal Circuit (CPU Communication) (Regular Diagnosis) (see page 17-39)
35-05 EPS Control Unit Internal Circuit (EPS Motor/EPS CPU) (Initial Diagnosis) (see page 17-46)
35-06 EPS Control Unit Internal Circuit (ITN Communication) (Regular Diagnosis) (see page 17-39)
35-07 EPS Control Unit Internal Circuit (INHL/INHR Ports) (Initial Diagnosis/ Regular Diagnosis) (see page 17-39)
NOTE:  Initial diagnosis: Done right after the engine starts and until the EPS indicator goes off.
 Regular diagnosis: Done right after the initial diagnosis until the ignition switch is turned to LOCK (0).
 Steering diagnosis: Done during regular diagnosis while turning steering wheel.
(cont’d)
08/08/21 14:53:59 61SNR030_170_0024
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