SsangYong Rexton. Manual - part 528

ABS AND TCS 4E-77

SSANGYONG Y200

Step

1. Use a scan tool to clear all DTCs.

2. Road test the vehicle.
Does DTC 110 set again?

1. Check all system wiring harness connectors and

terminals, especially the electronic brake control
module (EBCM), for any problem that could cause
an intermittent condition.

2 Repair any intermittent problem found.
Is the repair complete?

Check fuse SB2.
Is fuse SB2 blown?

1. Check for a short circuit and repair it, if necessary.

2. Replace fuse SB2.
Is the repair complete?

1. Disconnect the motor relay.
2. Check the resistance between the motor relay

connector terminal 17 and terminal 18 of EBCM.

Is the resistance equal to the specified value?

Repair the open circuit between the motor relay
connector terminal 17 and fuse SB2 of EBCM.
Is the repair complete?

1. Turn the ignition to ON.
2. Check the voltage between the motor relay

connector terminal 15 and ground of EBCM.

Is the voltage equal to the specified value?

1. Repair the open circuit between the motor relay

connector terminal 87 and terminal 14 of hydraulic
modulator.

2. Road test the vehicle

Does DTC 110 clear?

1. Replace the hydraulic modulator/EBCM.
2. Road test the vehicle

Does DTC 110 clear?

DTC 110 - Pump Motor or Pump Motor Relay Fault

Action

Yes

Value

Go to Step 3

Go to Step 2

System OK

Go to Step 4

Go to Step 5

Go to Step 7

Go to Step 6

11 - 14 V

Go to Step 9

Go to Step 8

11 - 14 V

System OK

Go to Step 9

SSANGYONG Y200

4E-78 ABS AND TCS

DIAGNOSTIC TROUBLE CODE (DTC) 161 - STOPLAMP SWITCH FAULT

YAD4E260

Circuit Description

When the brake pedal is pressed, the contacts on the
brake light switch close to illuminate the brake lights.
Battery voltage is also applied to terminal 14 of the
electronic brake control module (EBCM), which signals
the ABS controller that the brakes are applied and ABS
may be needed. Without this, signals from a wheel
speed sensor that may indicate the need for ABS
intervention are questionable. When the brake pedal
is not pressed, the EBCM terminal 14 is grounded
through the stoplamps.

Diagnosis

This procedure will check whether there is no output or
constant output from the stoplamp switch and will
determine the cause as a faulty switch or a problem in
the circuitry.

Cause

•

The ground connection or the positive connection
at the EBCM has failed.

•

There is an open, short to ground, of short to positive
in the vehicle wiring.

•

The stoplamp switch has failed.

Action Taken When the DTC Sets

The system records a DTC 161. ABS operation is not
disabled.

Test description

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

12. This step begins the process of troubleshooting

stoplamps that are always on.

Diagnostic Aids

Inspect the wiring and the connectors carefully and
thoroughly. Failure to do so could result in misdiagno-
sis, causing part replacement with the reappearance
of the malfunction.

ABS AND TCS 4E-79

SSANGYONG Y200

Step

Observe the stoplamps when the brakes are applied.

Do the stoplamps turn on?
Check fuse SB8.

Is fuse SB8 blown?

1. Check for a short circuit and repair it, if necessary.
2. Replace fuse SB8.

Is the repair complete?
Check the voltage at fuse SB8.

Is the voltage equal to the specified value?

Repair the power supply circuit for fuse SB8.
Is the repair complete?

Check the voltage at fuse F16.
Is fuse F16 blown?

1. Check for a short circuit between terminal SB8 and

fuse F16 in the I/P fuse block and repair it, if
necessary.

2. Replace fuse F16.
Is the repair complete?

Check the voltage at terminal 1 of the stoplamps
switch.
Is the voltage equal to the specified value?

Repair the open circuit between fuse F16 and terminal
1 of the stoplamp switch.

Is the repair complete?
With the brakes applied, check the voltage at terminal
2 or 4 of the stoplamp switch.

Is the voltage equal to the specified value?

Replace the stoplamp switch.
Is the repair complete?

1. Disconnect the electronic brake control module

(EBCM) connector.

2. Visually inspect the EBCM and its connector for

damaged pins or terminals.

Are there any damaged pins or terminals?

Repair the damaged pins or terminals.
Is the repair complete?

1. With the EBCM connector disconnected, applied

the brake.

2. Check the voltage at terminal 14 of the EBCM.

Is the voltage equal to the specified value?

Repair the open circuit between 1 of the stoplamp
switch and terminal 14 of the EBCM connector.
Is the repair complete?

With the EBCM disconnected, use an ohmmeter to
measure the resistance between ground and terminal
16 of the EBCM connector.
Is the resistance equal to the specified value?

DTC 161 - Stoplamp Switch Fault

Action

Yes

Value

Go to Step 12

Go to Step 2

System OK

Go to Step 6

Go to Step 5

11 - 14 V

Go to Step 7

Go to Step 8

Go to Step 3

Go to Step 4

Go to Step 10

Go to Step 9

11 - 14 V

System OK

Go to Step 12

Go to Step 11

11 - 14 V

System OK

Go to Step 13

Go to Step 14

System OK

Go to Step 16

Go to Step 15

11 - 14 V

System OK

Go to Step 18

Go to Step 17

≈

Ω

SSANGYONG Y200

4E-80 ABS AND TCS

Step

Repair the open circuit between ground and terminal
14 of the EBCM.

Is the repair complete?
Replace the ABS unit.

Is the repair complete?

DTC 161 - Stoplamp Switch Fault (Cont’d)

Action

Yes

Value

System OK

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