Alignment Handling Diagnosis. Front Wheel Alignment Adjustment

Suspension. Corolla. Zre142 Aze141

Alignment Handling Diagnosis. Corolla. Zre142 Aze141

INSPECT TIRES
MEASURE VEHICLE HEIGHT
INSPECT WHEEL ANGLE
INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION
ADJUST CAMBER
INSPECT TOE-IN
ADJUST TOE-IN
PLACE FRONT WHEELS FACING STRAIGHT AHEAD
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL (w/ VSC)
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL (w/ VSC)
PERFORM YAW RATE SENSOR ZERO POINT CALIBRATION (w/ VSC)
CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION (w/ VSC)

Front Wheel Alignment -- Adjustment

NOTICE:

For vehicles equipped with VSC, if the wheel alignment has been adjusted, and if suspension or underbody components have been removed/installed or replaced, be sure to perform the following initialization procedure in order for the system to function normally:

Disconnect the cable from the negative (-) battery terminal for more than 2 seconds.
Reconnect the cable to the negative (-) battery terminal.
Perform zero point calibration of the yaw rate and acceleration sensor and test mode inspection.

1. INSPECT TIRES

Check the tires for wear and proper inflation pressure.

Cold Tire Inflation Pressure
Tire Size
Front
kPa (kgf/cm², psi)
Rear
kPa (kgf/cm², psi)
P195/65R15 89S
210 (2.1, 30)
210 (2.1, 30)
P205/55R16 89H
P215/45R17 87W
205/55R16 91V
220 (2.2, 32)
220 (2.2, 32)

Cold Tire Inflation Pressure
Tire Size	Front kPa (kgf/cm², psi)	Rear kPa (kgf/cm², psi)
P195/65R15 89S	210 (2.1, 30)	210 (2.1, 30)
P205/55R16 89H P215/45R17 87W 205/55R16 91V	220 (2.2, 32)	220 (2.2, 32)

Using a dial indicator, check the runout of the tires.
Maximum tire runout:
1.4 mm (0.0551 in.)

2. MEASURE VEHICLE HEIGHT

Corolla. Zre142 Aze141.Alignment Handling Diagnosis.Front Wheel Alignment.Front Wheel Alignment Adjustment

NOTICE:

Before inspecting the wheel alignment, adjust the vehicle height to the specified value.
Be sure to perform measurement on a level surface.
If it is necessary to go under the vehicle for measurement, confirm that the parking brake is applied and the vehicle is secured with chocks.

Bounce the vehicle up and down at the corners several times to stabilize the suspension.

Measure the vehicle height.

Measuring points:: A:; No. 1 lower suspension arm bushing set bolt ground clearance; B:; Rear axle beam set bolt ground clearance; C:; Front wheel center ground clearance; D:; Rear wheel center ground clearance

Vehicle Height (Unloaded Vehicle):

-	Engine	Tire Size	Front C - A	Rear D - B
for TMC Made	2ZR-FE	-	92 mm (3.62 in.)	45 mm (1.77 in.)
except TMC Made	2ZR-FE	195/65R15	92 mm (3.62 in.) 80 mm (3.15 in.)*	45 mm (1.77 in.) 32 mm (1.26 in.)*
		205/55R16	92 mm (3.62 in.) 80 mm (3.15 in.)*	45 mm (1.77 in.) 32 mm (1.26 in.)*
		215/45R17	96 mm (3.78 in.)	51 mm (2.01 in.)
	2AZ-FE	-	96 mm (3.78 in.) 81 mm (3.19 in.)*	51 mm (2.01 in.) 36 mm (1.42 in.)*

* For vehicle height for Mexico

3. INSPECT WHEEL ANGLE

Put tread center marks on the rearmost points of the turning radius gauge.

Turn the steering wheel to the left and right full lock positions, and measure the turning angle.

Wheel Angle (Unloaded Vehicle):

-	Engine	Tire Size	Inside Wheel	Outside Wheel Reference
for TMC Made	2ZR-FE	195/65R15	38°13' +/- 2° (38.22° +/- 2°)	32°50' (32.83°)
for TMC Made	2ZR-FE	205/55R16	38°13' +/- 2° (38.22° +/- 2°)	32°50' (32.83°)
except TMC Made	2ZR-FE	195/65R15	38°13' +/- 2° (38.22° +/- 2°)	32°50' (32.83°)
		205/55R16	38°13' +/- 2° (38.22° +/- 2°) 38°31' +/- 2° (38.52° +/- 2°)*	32°50' (32.83°) 33°04' (33.07°)*
		215/45R17	36°59' +/- 2° (36.98° +/- 2°)	32°01' (32.02°)
	2AZ-FE	205/55R16*	37°19' +/- 2° (37.32° +/- 2°)*	32°18' (32.30°)*
	2AZ-FE	215/45R17	36°59' +/- 2° (36.98° +/- 2°)	32°01' (32.02°)

* For vehicle height for Mexico

If the angles are not as specified, check and adjust the right and left rack end lengths.

4. INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION

Install a camber-caster-kingpin gauge or place the front wheels on the center of a wheel alignment tester.

Inspect the camber, caster and steering axis inclination.

Camber (Unloaded Vehicle):

-	Engine	Tire Size	Camber Inclination	Right-Left Difference
for TMC Made	2ZR-FE	195/65R15	-0°35' +/- 45' (-0.58° +/- 0.75°)	45' (0.75°) or less
for TMC Made	2ZR-FE	205/55R16	-0°35' +/- 45' (-0.58° +/- 0.75°)
except TMC Made	2ZR-FE	195/65R15	- 0°34' +/- 45' (- 0.57° +/- 0.75°)
		205/55R16	- 0°35' +/- 45' (- 0.58° +/- 0.75°) - 0°26' +/- 45' (- 0.43° +/- 0.75°)*
		215/45R17	- 0°37' +/- 45' (- 0.62° +/- 0.75°)
	2AZ-FE	205/55R16*	- 0°27' +/- 45' (- 0.45° +/- 0.75°)*
	2AZ-FE	215/45R17	- 0°37' +/- 45' (- 0.62° +/- 0.75°)

* For vehicle height for Mexico

Caster (Unloaded Vehicle):

-	Engine	Tire Size	Caster Inclination	Right-Left Difference
for TMC Made	2ZR-FE	195/65R15	2°50' +/- 45' (2.83° +/- 0.75°)	45' (0.75°) or less
for TMC Made	2ZR-FE	205/55R16	2°51' +/- 45' (2.85° +/- 0.75°)
except TMC Made	2ZR-FE	195/65R15	2°50' +/- 45' (2.83° +/- 0.75°)
		205/55R16	2°50' +/- 45' (2.83° +/- 0.75°) 2°41' +/- 45' (2.68° +/- 0.75°)*
		215/45R17	2°55' +/- 45' (2.92° +/- 0.75°)
	2AZ-FE	205/55R16*	2°45' +/- 45' (2.75° +/- 0.75°)*
	2AZ-FE	215/45R17	2°55' +/- 45' (2.92° +/- 0.75°)

* For vehicle height for Mexico

Steering Axis Inclination (Unloaded Vehicle):

-	Engine	Tire Size	Steering Axis Inclination
for TMC Made	2ZR-FE	195/65R15	12°32' (12.53°)
		205/55R16
except TMC Made	2ZR-FE	195/65R15	12°32' (12.53°) 12°13' (12.22°)*
		205/55R16
		215/45R17	12°37' (12.62°)
	2AZ-FE	205/55R16*	12°16' (12.27°)*
		215/45R17	12°37' (12.62°)

* For vehicle height for Mexico

5. ADJUST CAMBER

NOTICE:

Inspect toe-in after the camber has been adjusted.

Remove the front wheel.

Remove the bolt and separate the front flexible hose from the front shock absorber.

Remove the clamp and separate the front speed sensor from the front shock absorber (except TMC Made).

Remove the 2 nuts on the lower side of the front shock absorber.
NOTICE:
Keep the bolts inserted.

Clean the installation surfaces of the front shock absorber and the steering knuckle.

Temporarily install the 2 nuts (Step A).

Fully push or pull the front axle hub in the direction of the required adjustment (Step B).

Tighten the nuts.
Torque:
240 N*m{2448 kgf*cm, 176 ft.*lbf}
NOTICE:
Keep the bolts from rotating when tightening the nuts.

Install the front speed sensor with the clamp to the front shock absorber (except TMC Made).

Install the front flexible hose to the front shock absorber with the bolt.
Torque:
29 N*m{296 kgf*cm, 21 ft.*lbf}

Install the front wheel.
Torque:
103 N*m{1050 kgf*cm, 76 ft.*lbf}

Check the camber.
If the measured value is not within the specification, calculate the required adjustment amount using the formula below.
Camber adjustment amount = center value of the specified range - measured value
Check the combination of installed bolts. Select appropriate bolts from the table below to adjust the camber to the specified values.
HINT:
Try to adjust the camber to the center of the specified values.
Move the Axle toward (+) in Step (B)
Move the Axle toward (-) in Step (B)
Refer to table (1) (Move the axle toward the positive side)
Refer to table (2) (Move the axle toward the negative side)
The body and suspension may be damaged if the camber is not correctly adjusted according to the table above.
NOTICE:
Replace the nut with a new one when replacing the bolt.

Repeat the steps mentioned above. In step (A), replace 1 or 2 selected bolts.
HINT:
Replace 1 bolt at a time when replacing the 2 bolts.

6. INSPECT TOE-IN

Bounce the vehicle up and down at the corners several times to stabilize the suspension.

Release the parking brake and move the shift lever to N.

Push the vehicle straight ahead approximately 5 m (16.4 ft.). (*1)

Put tread center marks on the rearmost points of the front wheels and measure the distance between the marks (dimension B).

Slowly push the vehicle straight ahead to rotate the front wheels 180° using the front tire valve as a reference point.
HINT:
Do not allow the wheels to rotate more than 180°. If the wheels rotate more than 180°, perform the procedure from (*1) again.

Measure the distance between the tread center marks on the front side of the wheels (dimension A).
Toe-in:
Specified Condition
C + D: 0°00' +/- 0°12' (0° +/- 0.2°)
B - A: 0 +/- 2.0 mm (0 +/- 0.0787 in.)
HINT:
1. Measure "B - A" only when "C + D" cannot be measured.
2. If the toe-in is not within the specified range, adjust it at the rack ends.

7. ADJUST TOE-IN

Make sure that the lengths of the right and left rack ends are almost the same.
Difference between right and left rack ends:
1.5 mm (0.0591 in.) or less

Remove the boot clips.

Loosen the tie rod end lock nuts.

Turn the right and left rack ends by an equal amount to adjust the toe-in to the center value.
1. Extend the shorter rack end if the measured toe-in deviates toward the outer side.
2. Shorten the longer rack end if the measured toe-in deviates toward the inner side.

Tighten the tie rod end lock nuts.
Torque:
74 N*m{755 kgf*cm, 55 ft.*lbf}

Place the boots on the seats and install the clips.
HINT:
Make sure that the boots are not twisted.

8. PLACE FRONT WHEELS FACING STRAIGHT AHEAD

9. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL (w/ VSC)

NOTICE:

Disconnect the cable from the negative (-) battery terminal for more than 2 seconds.

10. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL (w/ VSC)

11. PERFORM YAW RATE SENSOR ZERO POINT CALIBRATION (w/ VSC)

Link.

12. CHECK STEERING ANGLE SENSOR ZERO POINT CALIBRATION (w/ VSC)

COROLLA_ZRE142 RM000000ZRR0D0X_03_0002.html.

Move the Axle toward (+) in Step (B)	Move the Axle toward (-) in Step (B)
Refer to table (1) (Move the axle toward the positive side)	Refer to table (2) (Move the axle toward the negative side)