Daewoo Korando. Manual — part 203

SUSPENSION DIAGNOSIS 2A-11

SELF DIAGNOSIS TEST

DIAGNOSIS TEST

Special Tool Requirements : Scanner

1. Position the ignition switch to 'OFF'.

2. Connect Scanner harness connector to the engine

compartment diagnosis socket.

3. Turn the ignition switch to 'ON' position.

4. Select "Elctronic control vehicle diagnosis" from function

selection display and press "Enter".

5. Select "Korando ('98 model year)" from vehicle model

selection display and press 'Enter'.

6. Select "Elctronic suspension system (ECS)" from control

system selection display and press 'Enter'.

7. Select "Self-diagnosis" from diagnosis item selection display.

Notice

Check sensor value output display, if necessary.

8. Determine the fault code and check defective component.

Notice

Refer to self-diagnosis list.

1 Diagnosis Connector
2 Fuse Box

3 Solenoid Valve

2A-12 SUSPENSION DIAGNOSIS

Self - Diagnosis List

Fault

Code

Defects

Service Hint

01

Vertical Acceleration Sensor

02

Lateral Acceleration Sensor

03

Wheel Acceleration Sensor

04

05

Rear Step Motor

06

ECU

Front Step Motor

1. Check sensor supply voltage

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Condition - IGN ON

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Standard value - voltage between pin 11 and 8 of ECU :
4.5 - 5.0V

2. Check sensor output voltage.

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Condition - IGN ON

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Standard value - voltage between pin 20 and 11 of ECU
: 0.5 - 4.5V

3. Check the sensor.
4. Check circuit for open.
5. Check connection of other connectors.

1. Check sensor supply voltage.

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Condition - IGN ON

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Standard value - voltage between pin 11 and 8 of ECU :
4.5 - 5.0V

2. Check sensor output voltage.

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Condition - IGN ON

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Standard value - voltage between pin 10 and 11 of ECU
: 0.5 - 4.5V

3. Check the sensor.
4. Check circuit for open.
5. Check connection of other connectors.

1. Check step motor supply voltage.
2. Check circuit for open.
3. Check connection of other connectors.

1. Check step motor supply voltage.
2. Check circuit for open.
3. Check connection of other connectors.

1. Check connectors of ECU.
2. Replace the ECU.

1. Check sensor supply voltage.

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Condition - IGN ON

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Standard value - voltage between pin 11, 8 and pin
7,11 of ECU : 4.5 - 5.0V

2. Check sensor output voltage.
3. Check the sensor.
4. Check circuit for open.
5. Check connection of other connectors.

SECTION 2B

WHEEL ALIGNMENT

TABLE OF CONTENTS

SPECIFICATIONS

WHEEL ALIGNMENT SPECIFICATIONS

Application

Camber

Caster

Toe-in

King Pin Inclination

Description

0

° ±

30'

2

°

30'

±

30'

0 - 4 mm

12

°

30'

Specifications . . . . . . . . . . . . . . . . . . . . . . . . 2B-1

Wheel Alignment Specifications . . . . . . . . . . . 2B-1

Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 2B-2

Tire Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . 2B-2

Radial Tire Lead/Pull . . . . . . . . . . . . . . . . . . . 2B-3

Vibration Diagnosis . . . . . . . . . . . . . . . . . . . . . 2B-5

Maintenance and Repair . . . . . . . . . . . . . . . 2B-6

On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . . 2B-6

Wheel Alignment . . . . . . . . . . . . . . . . . . . . . . . 2B-6

General Description and System

Operation . . . . . . . . . . . . . . . . . . . . . . . . . 2B-9

Four Wheel Alignment . . . . . . . . . . . . . . . . . . 2B-9

Toe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2B-9

Caster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2B-9

Camber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2B-9

2B-2 WHEEL ALIGNMENT

DIAGNOSIS

TIRE DIAGNOSIS

Irregular and Premature Wear

Irregular and premature tire wear has many causes.
Some of them are incorrect inflation pressures, lack of
regular rotation, poor driving habits, or improper wheel
alignment.

Rotate the tires if :

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The front tire wear is different from the rear.

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The left and right front tire wear is unequal.

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The left and right rear tire wear is unequal, Check
wheel alignment if :

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The left and right front tire wear is unequal.

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The wear is uneven across the tread of either front
tire.

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The front tire treads are scuffed with “feather” edges
on the side of the tread ribs or blocks.

Tread Wear Indicators

The original equipment tires have built-in tread wear
indicators to show when the tires need replacement.
These indicators appear as bands when the tire tread
depth becomes shallow. Tire replacement is
recommended when the indicators appear in three or
more grooves at six locations.

Radial Tire Waddle

Waddle is side-to-side movement at the front or rear of
the vehicle. It is caused by the steel belt not being straight
within the tire, or by excessive lateral runout of the tire
or wheel.

The vehicle must be road tested to determine which end
of the vehicle has the faulty tire. The rear end of the
vehicle will shake from side to side or “waddle” if the
waddle tire is on the rear of the vehicle. From the driver’s
seat, it feels as though someone is pushing on the side
of the vehicle. If the faulty tire is on the front of the vehicle,
the waddle is more visual. The front sheet meld appears
to be moving back and forth, and the drivers seat feels
like the pivot point in the vehicle.

Waddle can be diagnosed using the method of
substituting known good tire and wheel assemblies on
the problem vehicle

1. Road test the vehicle to determine if the waddle is

coming from the front or the rear of the vehicle.

2. Install good tires and wheels from a similar vehicle in

place of those on the offending end of the problem
vehicle. If the source of the waddle is not obvious,
change the rear tires.