change wheel ACURA CSX 2006 Service Repair Manual




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Vehicle Lift
Safety Stands Floor Jack
1-11
Lift and Support Points
A
B CC
C
B
A
NOTE: If you are going to remove heavy com
ponents
such as suspension or the fuel tank from the rear of the
vehicle, first support the front of the vehicle with tall
safety stands. When substantial weight is removed
from the rear of the vehicle, the center of gravity can
change, causing the vehicle to tip forward on the lift.
1. Position the lift blocks (A) under the vehicle’s front support points (B) and rear support points (C).
2. Raise the lift a few inches, and rock the vehicle gently to be sure it is firmly supported.
3. Raise the lift to its full height, and inspect the vehicle support points for solid contact with the lift
blocks.
To support the vehicle on safety stands, use the same
support points as for a vehicle lift. Always use safety
stands when working on or under any vehicle that is
supported only by a jack. 1. When lifting the front of the vehicle, set the parking
brake. When lifting the rear of the vehicle, put the
shift lever in reverse for manual transmission, or in
P for automatic transmission.
2. Block the wheels that are not being lifted.
3. Position the floor jack under the front jacking bracket (A) or the rear jacking bracket (B). Center
the jacking bracket on the jack lift platform (C), and
jack up the vehicle high enough to fit the safety
stands under it.
4. Position the safety stands under the support points, and adjust them so the vehicle is level.
5. Lower the vehicle onto the stands.
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Driver cannot select reverse gear when
vehicle speed is 15 km/h (9 mph) or less
YES
NO
YES
NO
YES
NO YES
NO
13-76Reverse Lockout System
Symptom Troubleshooting (cont’d)
REVERSE LOCKOUT SOLENOID 2P CONNECTOR
RVS (GRN/BLK)
NOTE: When checking if the transmission will shift to reverse while the wheels are being driven forward,
raise the vehicle on a lift, make sure it is securely
supported, and allow the front wheels to rotate freely.
 Do not release the clutch pedal if you can select reverse gear while the wheels are driven forward.
 When the vehicle is on a lift, and you make the wheels rotate, turn off the VSA system by the VSA
OFF switch.
1. Turn the ignition switch to LOCK (0).
2. Try to shift the transmission into reverse.
Go to step 4.
Go to step 3.
3. Do the reverse lockout solenoid test (see page 13-77).
Check the change lever assembly (see page
13-105), if necessary inspect the internal
transmission.
Repair or replace the reverse lockout solenoid
(see page 13-77).
4. Start the engine, and try to shift the transmission into reverse.
Intermittent failure, the system is OK at this
time.
Go to step 5. 5. Turn the ignition switch to LOCK (0).
6. Jump the SCS line with the HDS.
7. Disconnect ECM connector A (44P).
8. Disconnect the r
everse lockout solenoid 2P
connector.
9. Check for continuity between the reverse lockout solenoid 2P connector terminal No. 1 and body
ground.
Repair short to body ground in the wire
between the reverse lockout solenoid and the
ECM.
Check for loose terminals or poor connections
at the ECM. If necessary, update the ECM if it does
not have the latest software (see page 11-227), or
substitute a known-good ECM (see page 11-7), then
recheck. If the symptom goes away with a known-
good ECM, replace the original ECM (see page
11-228).
Wire side of female terminals
Can y ou shi f t t he t r ansmi ssi on i nt o t he r ev er se?
I s t he r ev er se l ock out sol enoi d OK ?
Can y ou shi f t t he t r ansmi ssi on i nt o t he r ev er se? Is there continuity?
08/08/21 14:46:40 61SNR030_130_0078
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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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DTCDetection Item Note
17-24EPS Components
DTC Troubleshooting Index (cont’d)
36-02 EPS Control Unit Internal Circuit (INH Output Circuit) (Initial Diagnosis) (see page 17-39)
37-01 EPS Control Unit Internal Circuit (Step-up Circuit) (Initial Diagnosis) (see page 17-39)
51-01 Low/High Voltage for the Torque Sensor (VT1 and VT2) (Regular
Diagnosis) (see page 17-46)
51-02 Torque Sensor (VT3 Differential-amplification Function) (Regular Diagnosis) (see page 17-50)
51-03 Torque Sensor (VT1, VT2 Rapid-change) (Regular Diagnosis) (see page 17-50)
51-06 Torque Sensor (VT1, VT2 Average) (Regular Diagnosis) (see page 17-50)
51-07 Torque Sensor (VT1, VT2 Initial Check) (Initial Diagnosis) (see page 17-50)
61-04 Open/Short in the EPS Motor Harness (Steering Diagnosis) (see page 17-53)
71-01 EPS Motor Angle Sensor (SIN/COS Signals) (Steering Diagnosis) (see page 17-55)
71-02 EPS Motor Angle Sensor (Neutral Position Learning of SIN/COS) (Initial Diagnosis) (see page 17-55)
71-03 EPS Motor Angle Sensor (SIN/COS Signals) (Steering Diagnosis) (see page 17-55)
71-04 EPS Motor Angle Sensor (Check Signals) (Regular Diagnosis) (see page 17-58)
71-05 EPS Motor Angle Sensor (SIN/COS Signals Charging Amount) (Steering Diagnosis) (see page 17-55)
71-06 EPS Motor Angle Sensor (Neutral Position of SIN/COS) (Initial Diagnosis) (see page 17-55)
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.
08/08/21 14:53:59 61SNR030_170_0025
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ÎSteering Gearbox
Torque Sensor
17-29
Worm wheel gear
Worm gear
EPS motor
Torque sensor
Steered to right Center Steered to left Steered to left
Steered to right
0 VT1
VT3
VT2
Input voltage (V)
Core
Coil
The EPS motor engages with a pinion and one worm wheel gear, which is transmitted to a direct pinion, to move a
rack.
When the steering wheel is turned, twist occurs in the torsion bar between the steering side of the input shaft and the
output shaft on the road reaction force side. Inductance is changed by the movement of the core. The amount this
voltage changes (varies with the amount of movement, and direction of the core) is amplified with the interface
circuitry of the sensor coil, and output to the EPS control unit as a steer signal.
08/08/21 14:54:01 61SNR030_170_0030
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DTC 21-01:
DTC 21-02:
YES
NO YES
NO
YES
NO
17-35
Excessive Change of the Vehicle
Speed Signal (Regular Diagnosis)
Comparison between the Vehicle
Speed and the Engine Speed Signal (Regular
Diagnosis)
NOTE:
 If the MIL is on, troubleshoot the fuel and emissions systems first.
 Even though the system is operating normally, the EPS indicator will come on caused by the detecting
condition of DTC 21-01 or DTC 21-02 when you raise
the engine speed with the vehicle stopped.
 Clear the DTC related to the ABS/VSA.
1. Turn the ignition switch to LOCK (0).
2. Raise the vehicle, and support it with safety stands in the proper locations (see page 1-11), and allow
all wheels to rotate freely.
3. Connect the HDS to the data link connector (DLC).
4. Turn off VSA by using the VSA OFF switch.
5. Start the engine, run the vehicle in the 4th (M/T), or D position (A/T).
6. Check the VEHICLE SPEED in the EPS DATA LIST with the HDS.
The system is OK at this time.
Go to step 7. 7. Check for DTCs in the fuel and emissions system
(M/T) or A/T system (A/T) with the HDS.
Troubleshoot the indicated DTC(s).
Go to step 8.
8. Start the engine, and check the tachometer.
Go to step 9.
Troubleshoot the gauge control module (tach)
(see page 22-241).
9. Turn the ignition switch to LOCK (0).
10. Short the SCS line with the HDS.
11. Disconnect ECM/PCM connector A (44P) and EPS control unit connector D (28P).
(cont’d)
Is t he v ehi cl e speed i nd i cat ed ? Is DT C P07 20, P07 21, P07 22 or P07 23
indicated?
I s t he t achomet er w or k i ng cor r ect l y ?
08/08/21 14:54:03 61SNR030_170_0036
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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)
08/08/21 14:56:45 61SNR030_180_0005
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System Structure
Control unit
Indicators
18-58TPMS
System Description (cont’d)
Vehicle
Indicators (LED)
Gauge Control Module (Tach)
Communication
via F-CAN
Control Unit
(with radio
frequency antenna)
Tire Pressure Sensor
(sensor-transmitter
with acceleration sensor) Wheel
(TPMS type)
Tire Pressure Sensor
(sensor-transmitter
with acceleration sensor)
Tire Pressure Sensor
(sensor-transmitter
with acceleration sensor)
Tire Pressure Sensor
(sensor-transmitter
with acceleration sensor)
Wheel
(TPMS type)
Wheel
(TPMS type) Wheel
(TPMS type)
Once the vehicle speed exceeds 45 km/h (28 mph), the TPMS control unit monitors all four tire pressure sensors and
the system function. If it detects low pressure in a tire, it alerts the driver by turning on the low tire pressure indicator.
If it detects a problem in the system, it turns on the TPMS indicator.
Mounted inside of the dash, the TPMS control unit receives wireless pressure sensor ID signals
every time the vehicle
speeds exceeds 45 km/h (28 mph). It also receives wireless signals from the transmitters for tire pressure and the
sensor condition, and it continuously monitors and controls the system. The TPMS control unit cannot directly
determine the position (location) of a tire pressure sensor(s) on the vehicle since it is a wireless system. TPMS sensor
locations will change during scheduled vehicle maintenance (tire rotation).
NOTE: To determine the actual location of each TPMS wheel sensor on the vehicle, do the tire pressure sensor
location procedure (see page 18-53). Once the tire pressure sensor locations are identified, write the sensor ID on the
side wall of the tire with a tire crayon to eliminate confusion.
Two indicators are in the gauge control module (tach): The low tire pressure indicator comes on when any tire
pressure is low, and the TPMS indicator that comes on only if there’s a problem with the system.
The low tire pressure indicator alerts the driver that a tire(s) pressure is low, but does not specify the tire(s) location.
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Removal
18-76 TPMS
Tire Pressure Sensor Replacement
A
C
B 90 °
OUTSIDE A
B
C
AB
C
1. Raise the vehicle, and support it with safety stands in the proper locations (see page 1-11).
2. Remove the wheel with the faulty sensor.
3. Remove the tire valve stem cap and the valve stem core, to deflate the tire.
4. Remove any balance weights, and then break the bead loose from the wheel with a commercially
available tire changer (A).
Note these items to avoid damaging the tire
pressure sensor: Do the outside of the wheel first.
 Position the wheel as shown so the valve stem (B) is 90 degrees from the bead
breaker (C) as shown.
 Do not position the bead breaker of the tire changer too close to the rim. 5. Position the wheel so the tire machine (A) and tire
iron (B) are next to the valve stem (C), and will
move away from it when the machine starts. Then
remove the tire from the wheel.
6. Remove the valve stem nut (A) and the washer (B), then remove the tire pressure sensor with the valve
stem (C) from the wheel.
NOTE: Check the nut and the washer, If they have
deterioration or damage, replace then with new
ones during reassembly.
08/08/21 14:59:02 61SNR030_180_0076
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DTC 27-23: DTC 27-24:
YES
NO YES
NO
19-13519-135
Steering Angle Sensor Counter
Malfunction Steering Angle Sensor Exchange
Malfunction
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to
ON (II) again.
4. Turn the steering wheel from lock to lock.
5. Check for DTCs with the HDS.
Replace the steering angle sensor (see page
19-168).
Intermittent failure, the system is OK at this
time. 1. Turn the ignition switch to ON (II), and set the front
wheels to the straight ahead position.
2. Turn the steering wheel one turn to the left. Check the STEERING ANGLE in the VSA DATA LIST with
the HDS.
Intermittent failure, the system is OK at this
time.
Replace the steering angle sensor (see page
19-168).
Is DTC 27-23 indicated? Is t her e about 288 d egr ees t o 432 d egr ees
posi t i v e?
08/08/21 15:05:55 61SNR030_190_0135
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