SsangYong Rexton. Manual - part 514

ABS AND TCS  4E-15

SSANGYONG  Y200

Pressure Decrease

1 Master Cylinder
2 Hydraulic Modulator
3 Damper
4 Pump
5 Pump Motor
6 Accumulator
7 Inlet Valve for each wheel

YAD4E120

8 Outlet Valve for each wheel
9  Wheel

10 Prime Valve
11 Pilot Valve
12 Check Valve
13 ISD (Integrated Suction Damper)

SSANGYONG  Y200

4E-16  ABS AND TCS

2

5

4

3

1

COMPONENT LOCATOR

ABS, ABS/TCS 5.3

1 ABS/TCS Hydraulic Unit and Control Unit
2 Rear Wheel Speed Sensor
3 ABS Warning Indicator

YAD4E130

4 Diagnosis connector
5 Front Wheel Speed Sensor

SSANGYONG  Y200

4E-18  ABS AND TCS

DIAGNOSTIC INFORMATION AND PROCEDURES

DIAGNOSTIC CIRCUIT CHECK

YAD4E140

The Diagnostic Circuit Check is an organized approach
to identifying a problem created by an antilock brake
system (ABS) malfunction. If must be the starting point
for any ABS complaint diagnosis because it directs
the service technician to the next logical step in
diagnosing the complaint.

Diagnostic Process

Perform the following steps in order when servicing
the ABS/TCS system. Failure to do so may result in
the loss of important diagnostic data and may lead to
difficulties and time-consuming diagnosis procedures.

1. Perform the tests of the table below.

2. Perform a road test if directed by the table.

•

Test drive the vehicle while using the snapshot
feature of the scan tool.

•

Perform normal acceleration, stopping, and
turning maneuvers.

•

If this does not reproduce the malfunction,
perform an ABS stop or TCS maneuver on a low
friction surface such as gravel.

3. Clear the diagnostic trouble codes (DTCs) after

all system malfunctions have been corrected.

ABS AND TCS  4E-19

SSANGYONG  Y200

1. Install the scan tool.

2. Turn ignition switch to ON.
3. Select the Data List mode.

Is the scan tool receiving data from the electronic
brake control module (EBCM)?

Check the display.
Are there any current DTCs displayed?

1. Turn the ignition to LOCK for 10 seconds.
2. Turn the ignition to On and observe the ABS

indicator.

Does the indicator light for 2 seconds and then go off?

Check the ABS indicator.
Did the ABS indicator turn on and stay on?

Check whether the vehicle is equipped with traction
control.

Is the vehicle equipped with traction control?
1. Turn the ignition to LOCK for 10 seconds.

2. Turn the ignition to ON and observe the TCS

indicator.

Does the indicator light for 2 seconds and then go off?

1. Turn the ignition to LOCK.

2. Disconnect the EBCM harness connector.
3. Turn the ignition to ON.

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

voltage from ground to terminal 15 of the EBCM
harness connector.

Is the voltage equal to the specified valve?
1. Turn the ignition to LOCK.

2. Use a DVM to measure the resistance from the

EBCM harness connector, terminals 16 and 19 to
ground.

Is the resistance equal to the specified value?

Repair the open in the circuit that failed.

Is the repair complete?
Use a DVM to measure the resistance between
terminal 11 of the EBCM harness connector and
terminal 8 of the data link connector (DLC).

Is the resistance below the specified valve?
Replace the ABS unit.

Is the repair complete?

Repair the open or high resistance in circuit between
terminal 11 of the EBCM harness connector and
terminal 8 of the DLC.
Is the repair complete?

Perform the road test described above.
Are any DTC set?

Diagnostic Circuit Check

Step

1

Action

Yes

No

Value

2

Go to Step 2

Go to Step 7

-

Refer to the

applicable

DTC table

Go to Step 3

-

3

Go to Step 5

Go to Step 4

-

4

Go to “ABS

Indicator Lamp

Illuminated

Constantly”

Go to “ABS

Indicator Lamp

Inoperative”

-

5

Go to Step 6

Go to Step 13

-

6

Go to Step 13

Go to “TCS

Indicator Lamp

Inoperative”

-

7

Go to Step 8

Go to “Power

Supply to

Control

Module, No

DTCs Stored”

11 - 14 V

8

Go to Step 10

Go to Step 9

≈

 0 

Ω

9

System OK

-

-

10

Go to Step 11

Go to Step 12

2 

Ω

11

System OK

-

-

12

Go to Step 1

-

-

13

Go to the DTC

table

System OK

-