SsangYong Rexton. Manual - part 522

ABS AND TCS  4E-53

SSANGYONG  Y200

System OK

-

-

Step

Examine the wheel speed sensor.

Are there any signs of physical damage?
1. Turn the ignition to LOCK.

2. Disconnect the right rear wheel speed sensor

connector.

3. Use a digital voltmeter (DVM) to measure the

resistance between the sensor terminals.

Is the resistance within the specified value at
approximately 25 °C (77 °F)?

Replace the wheel speed sensor.
Is the repair complete?

1. Switch the DVM to the AC mV.

2. Measure the voltage output between the wheel

speed sensor terminals while rotating the wheel
about 1 revolution per second.

Is the output within the specified value?

Replace the speed sensor or the toothed wheel, as
required.
Is the repair complete?

1. Disconnect the harness from the EBCM.

2. Connect a DVM between ground and one terminal

of the wheel speed connector.

3. Turn the ignition to ON.

4. Repeat the above test for the other terminal of the

wheel speed connector.

Is the voltage for either of these terminals within the
specified value?
Repair the short to voltage in the affected circuit.

Is the repair complete?
1. Turn the ignition to LOCK.

2. Measure the resistance to ground from terminal 1

at the harness EBCM connector.

3. Measure the resistance to ground from terminal 2

at the harness EBCM connector.

Is the resistance at either circuit less than the
specified value?

Repair the short to ground in the affected circuit.
Is the repair complete?

1. Measure the resistance between terminal 1 at the

harness EBCM connector and the harness wheel
speed sensor connector.

2. Measure the resistance between terminal 2 at the

harness EBCM connector and the harness wheel
speed sensor connector.

Is the resistance on either circuit within the specified
value?

Repair the open or high resistance in the affected
circuit, as required.
Is the repair complete?

Replace the ABS unit.

Is the repair complete?

DTC 050 - Right Rear Wheel Speed Sensor Fault

1

Action

Yes

No

Value

2

3

Go to Step 3

Go to Step 2

-

4

Go to Step 7

Go to Step 8

> 1 V

5

Go to Step 9

Go to Step 10

∞

6

7

8

Go to Step 6

Go to Step 5

≈

 70 mV

9

System OK

-

-

10

11

System OK

-

-

12

Go to Step 11

Go to Step 12

> 5 

Ω

System OK

-

-

System OK

-

-

System OK

-

-

Go to Step 4

Go to Step 3

1280 - 1920 

Ω

SSANGYONG  Y200

4E-54  ABS AND TCS

DIAGNOSTIC TROUBLE CODE (DTC) - RIGHT REAR WHEEL SPEED

SENSOR CONTINUITY FAULT

YAD4E200

Circuit Description

The toothed wheel generates a voltage pulse as it
moves past the sensor. Each tooth-gap-tooth series
on the wheel generates the pulses. The electronic brake
control module (EBCM) uses the frequency of these
pulses to determine the wheel speed. The voltage
generated depends on the air gap between the sensor
and the toothed wheel, and on the wheel speed.

Diagnosis

This procedure checks for a malfunctioning wheel
speed sensor, a short to ground or to voltage in the
wiring, or a contact problem in a connector.

Cause

•

T he  w heel s p e e d  s e n so r  i s  d e fe c tive  or
disconnected.

•

There is a problem in the wiring.

•

There is a problem with a connector.

Action Taken When the DTC Sets

ABS action is disabled, and the ABS warning lamp is
ON.

Test Description

The number(s) below refer to step(s) on the diagnostic
table.

1. This step begins an examination for a defective

wheel speed sensor.

6. This step tests the wiring for a short to voltage.

8. This step tests the wiring for a short to ground.

10. This step tests for an open or high resistance in

the wiring.

Diagnostic Aids

Be sure that the speed sensor wiring is properly routed
and retained. This will help to prevent false signals
due to the pickup of electrical noise.

It is very important to perform a thorough inspection
of the wiring and the connectors. Failure to inspect the
wiring and the connectors carefully and completely may
result in misdiagnosis, causing part replacement with
the reappearance of the malfunction.

ABS AND TCS  4E-55

SSANGYONG  Y200

Step

Examine the wheel speed sensor.

Are there any signs of physical damage?
1. Turn the ignition to LOCK.

2. Disconnect the right rear wheel speed sensor

connector.

3. Use a digital voltmeter (DVM) to measure the

resistance between the sensor terminals.

Is the resistance within the specified value at
approximately 25 °C (77 °C)?

Replace the wheel speed sensor.
Is the repair complete?

1. Disconnect the harness from the EBCM.

2. Connect a DVM between ground and one terminal

of the wheel speed connector.

3. Turn the ignition to ON.

4. Repeat the above test for the other terminal of the

wheel speed connector.

Is the voltage for either of these terminals within the
specified value?

Repair the short to voltage in the affected circuit.

Is the repair complete?
1. Turn the ignition go LOCK.

2. Measure the resistance to ground from terminal 1

at the harness EBCM connector.

3. Measure the resistance to ground from terminal 2

at the harness EBCM connector.

Is the resistance at either circuit less than the
specified value?

1. Measure the resistance between terminal 1 at the

harness EBCM connector and the harness wheel
speed sensor connector.

2. Measure the resistance between terminal 2 at the

harness EBCM connector and the harness wheel
speed sensor connector.

Is the resistance on either circuit within the specified
value?

Repair the open or high resistance in the affected
circuit as required.
Is the repair complete?

Replace the ABS unit.
Is the repair complete?

Right Rear Wheel Speed Sensor Continuity Fault

1

Action

Yes

No

Value

2

3

Go to Step 3

Go to Step 2

-

4

System OK

Go to Step 7

∞

5

Go to Step 8

Go to Step 9

> 5 

Ω

6

7

8

Go to Step 5

Go to Step 6

> 1 V

9

System OK

-

-

System OK

-

-

System OK

-

-

System OK

-

-

Go to Step 4

Go to Step 3

1280 - 1920 

Ω

SSANGYONG  Y200

4E-56  ABS AND TCS

DIAGNOSTIC TROUBLE COED (DTC) 245 - WHEEL SPEED SENSOR

FREQUENCY ERROR

YAD4E210

Circuit Description

The toothed wheel generates a voltage pulse as it
moves past the wheel speed sensor. Each tooth-gap-
tooth series on the wheel generates the pulses. The
electronic brake control module (EBCM) uses the
frequency of these pulses to determine wheel speed.
The voltage generated depends on the air gap between
the wheel speed sensor and the toothed wheel, and
on the wheel speed.

Diagnosis

This DTC will set when the EBCM cannot identify which
wheel speed sensor is causing the malfunction. It is
necessary to check all wheel speed sensors and
associated wiring to determine the cause of the DTC.

Cause

•

Incorrect number of teeth on the toothed wheel.

•

Damaged or broken teeth on the toothed wheel.

•

Open or short in speed wheel speed sensor wiring.

Action Taken When the DTC Sets

Antilock brake system (ABS) action is disabled and
the ABS warning lamp is ON.

Test Description

The number(s) below refer to Step(s) on the diagnostic
table.

1. This step begins the examination of the front wheel

speed sensor sensors.

3. This step checks for a problem with one of the

front toothed rings.

5. This step checks the front wheel speed sensors.

7. This step checks for shorts in a front wheel speed

sensor harness.

9. This step checks for opens in a front wheel speed

sensor harness.

11. This step begins a check of the rear wheel speed

sensors.

13. This step checks for a problem with one of the

rear toothed rings.

15. This step checks the rear wheel speed sensors.

17. This step checks for shorts in a rear wheel speed

sensor harness.

19. This step checks for opens in a rear wheel speed

sensor harness.