Lexus ES300 (1997 year). Manual — part 570

RS01X–02

RS–40

–

SUPPLEMENTAL RESTRAINT SYSTEM

WIRE HARNESS AND CONNECTOR

1384

1997 LEXUS ES300 (RM511U)

REPLACEMENT

In the following cases,replace the wire harness or connector.

If any part of the SRS wire harness or any connector has been found to be faulty in troubleshoot-
ing.

If any part of the SRS wire harness or any connector has been found to be faulty during the
checking items. (See page

RS–39

)

CAUTION:
If the wire harness used in the SRS is damaged, replace the whole wire harness assembly.

SA0DT–03

–

SUSPENSION AND AXLE

TROUBLESHOOTING

SA–1

1049

1997 LEXUS ES300 (RM511U)

TROUBLESHOOTING

PROBLEM SYMPTOMS TABLE

Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.

Symptom

Suspect Area

See page

Wander/pulls

1. Tire (Worn or improperly inflated)

2. Wheel alignment (Incorrect)

3. Steering linkage (Loosen or worn)

4. Hub bearings (Worn)

5. Steering gear (Out of adjustment or broken)

6. Suspension parts (Worn)

SA–2

SA–4

SA–7

–

SA–8

SA–45

–

–

Bottoming

1. Vehicle (Overloaded)

2. Spring (Weak)

3. Shock absorber (Worn out)

–

SA–24

SA–50

SA–28

SA–54

Sways/pitches

1. Tire (Worn or improperly inflated)

2. Stabilizer bar (Bent or broken)

3. Shock absorber (Worn out)

SA–2

SA–41

SA–64

SA–28

SA–54

Front wheel shimmy

1. Tire (Worn or improperly inflated)

2. Wheels (Out of balance)

3. Shock absorber (Worn out)

4. Wheel alignment (Incorrect)

5. Ball joints (Worn)

6. Hub bearings (Worn)

7. Steering linkage (Loosen or worn)

8. Steering gear (Out of adjustment or broken)

SA–2

SA–2

SA–28

SA–4

SA–39

SA–8

–

–

Abnormal tire wear

1. Tire (Worn or improperly inflated)

2. Wheels (Out of balance)

3. Suspension parts (Worn)

4. Shock absorber (Worn out)

SA–2

SA–2

–

SA–28

SA–54

SA0DU–01

R03031

R15157

Front

R07928

SA–2

–

SUSPENSION AND AXLE

TIRE AND WHEEL

1050

1997 LEXUS ES300 (RM511U)

TIRE AND WHEEL

INSPECTION

1.

INSPECT TIRE

(a)

Check the tires for wear and for the proper inflation pres-
sure.
Cold inflation pressure:

Tire size

Front, Rear

kPa (kgf/cm

2

or bar, psi)

P205/65R15 92H

*

1

180 (1.8, 26)

*

2

220 (2.2, 32)

*

1

: For all loads including full rated loads

*

2

: For reduced loads (1 to 4 passengers)

(b)

Check the tire runout.
Tire runout: 1.0 mm (0.039 in.) or less

2.

ROTATING TIRES

HINT:
See the illustration for where to rotate each tire.

3.

INSPECT WHEEL BALANCE

(a)

Check and adjust the Off–the–car balance.

(b)

If necessary, check and adjust the On–the–car balance.
Unbalance after adjustment: 8.0 g (0.018 lb) or less

W03084

–

SUSPENSION AND AXLE

TIRE AND WHEEL

SA–3

1051

1997 LEXUS ES300 (RM511U)

4.

CHECK WHEEL BEARING LOOSENESS

(a)

Check the backlash in the bearing shaft direction.
Maximum: 0.05 mm (0.0020 in.)

(b)

Check the axle hub deviation.
Maximum: 0.05 mm (0.0020 in.)

5.

CHECK FRONT SUSPENSION FOR LOOSENESS

6.

CHECK STEERING LINKAGE FOR LOOSENESS

7.

CHECK BALL JOINT FOR LOOSENESS

8.

CHECK SHOCK ABSORBER WORKS PROPERLY

Check for oil leaks

Check mounting bushings for wear

Bounce front and rear of the vehicle