NO.2 ANY OF THE FOLLOWING LIGHTS STAY ON: (ABS WARNING LIGHT, TCS/DSC INDICATOR LIGHT AND/OR DSC OFF INDICATOR LIGHT) [DYNAMIC STABILITY CONTROL (DSC)]

2	Any of the following lights stay on: (ABS warning light, TCS/DSC indicator light and/or DSC OFF indicator light)
POSSIBLE CAUSE	• No connection at DSC HU/CM connector (When DSC HU/CM connector comes off, ABS warning light, brake system warning light, TCS/DSC indicator light, and DSC OFF indicator light illuminate.) • DSC HU/CM detected malfunction. (Input and output device malfunction) • DSC HU/CM detects low voltage in power supply. • DSC HU/CM ground malfunction (When DSC HU/CM ground is not securely connected, ABS warning light, brake system warning light, TCS/DSC indicator light, and DSC OFF indicator light illuminate but diagnostic trouble code does not display.) • DSC HU/CM does not operate. • PCM detected malfunction. • Error signal input from PCM • Communication error between DSC HU/CM and instrument cluster • Communication error between DSC HU/CM and PCM • Communication error between DSC HU/CM and EPS CM • After replacing SAS control module low-G sensor and yaw rate sensor initialization have not been performed. • After replacing DSC HU/CM brake fluid pressure sensor initialization has not been performed. • Non-completion of module configuration (When module configuration does not carried out, after replacing DSC HU/CM, ABS warning light will stay on.) • DSC HU/CM internal malfunction

Any of the following lights stay on: (ABS warning light, TCS/DSC indicator light and/or DSC OFF indicator light)

POSSIBLE CAUSE

• No connection at DSC HU/CM connector (When DSC HU/CM connector comes off, ABS warning light, brake system warning light, TCS/DSC indicator light, and DSC OFF indicator light illuminate.)

• DSC HU/CM detected malfunction. (Input and output device malfunction)

• DSC HU/CM detects low voltage in power supply.

• DSC HU/CM ground malfunction (When DSC HU/CM ground is not securely connected, ABS warning light, brake system warning light, TCS/DSC indicator light, and DSC OFF indicator light illuminate but diagnostic trouble code does not display.)

• DSC HU/CM does not operate.

• PCM detected malfunction.

• Error signal input from PCM

• Communication error between DSC HU/CM and instrument cluster

• Communication error between DSC HU/CM and PCM

• Communication error between DSC HU/CM and EPS CM

• After replacing SAS control module low-G sensor and yaw rate sensor initialization have not been performed.

• After replacing DSC HU/CM brake fluid pressure sensor initialization has not been performed.

• Non-completion of module configuration (When module configuration does not carried out, after replacing DSC HU/CM, ABS warning light will stay on.)

• DSC HU/CM internal malfunction

STEP	INSPECTION	ACTION
1	CONFIRM DSC HU/CM DTC • Retrieve the DSC HU/CM DTC using the M-MDS (IDS). (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
No	If communication error message is displayed on the M-MDS (IDS) screen: • Go to the next step. If communication error message is not displayed: • Go to Step 6.
2	INSPECT CONNECTION OF DSC HU/CM CONNECTOR • Inspect for connection of the DSC HU/CM connector. • Is the DSC HU/CM connector connected securely?	Yes	Go to the next step.
No	Connect the DSC HU/CM connector securely, then go to Step 6.
3	INSPECT DSC HU/CM POWER SUPPLY FUSE • Inspect the DSC HU/CM ignition power supply fuse. • Is the fuse normal?	Yes	Go to the next step.
No	Inspect the blown fuse’s circuit for short to ground. Repair or replace the wiring harness for a possible short to ground as necessary. Install appropriate amperage fuse.
^*4	VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN DSC HU/CM POWER SUPPLY AND DSC HU/CM FOR CONTINUITY) OR ELSEWHERE • Switch the ignition to ON. • Measure the voltage at the DSC HU/CM terminal Q (wiring harness-side). • Is the voltage approx. 12 V?	Yes	Go to the next step.
No	Refer to the wiring diagram and verify whether or not there is a common connector between DSC HU/CM terminal Q (wiring harness-side) and ignition switch. If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit.
^*5	VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN DSC HU/CM AND GND FOR CONTINUITY) OR ELSEWHERE • Switch the ignition to off. • Disconnect the DSC HU/CM connector. • Inspect for continuity between DSC HU/CM terminal AL (wiring harness-side) and body ground. • Is there continuity?	Yes	Replace the DSC HU/CM. (open circuit in the DSC HU/CM) (See DSC HU/CM REMOVAL/INSTALLATION.)
No	Repair or replace the wiring harness for a possible open circuit and poor contact in ground point.
6	CONFIRM PCM DTCs • Retrieve the PCM DTCs using the M-MDS (IDS). (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (SeeON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See DTC TABLE [SKYACTIV-D 2.2].)
No	Go to the next step.
7	VERIFY IF MALFUNCTION CAUSED BY INITIALIZATION PROCEDURE FOR MODULE NOT PERFORMED • Verify if malfunction caused by initialization procedure for brake fluid pressure sensor not performed. • Has the initial setting for the brake fluid pressure sensor been performed after replacing the DSC HU/CM?	Yes	Go to the next step.
No	Perform the brake fluid pressure sensor initial setting. (See DSC RELATED PARTS SENSOR INITIALIZATION PROCEDURE.)
8	VERIFY IF MALFUNCTION CAUSED BY INITIALIZATION PROCEDURE FOR LOW-G SENSOR NOT PERFORMED • Verify if malfunction caused by initialization procedure for low-G sensor not performed. • Has the initial setting for the low-G sensor been performed after replacing the DSC HU/CM and the SAS control module?	Yes	Go to the next step.
No	Perform the low-G sensor initial setting. (See DSC RELATED PARTS SENSOR INITIALIZATION PROCEDURE.)
9	VERIFY IF MALFUNCTION CAUSED BY INITIALIZATION PROCEDURE FOR YAW RATE SENSOR NOT PERFORMED • Verify if malfunction caused by initialization procedure for yaw rate sensor not performed. • Has the initial setting for the yaw rate sensor been performed after replacing the DSC HU/CM and the SAS control module?	Yes	Go to the next step.
No	Perform the yaw rate sensor initial setting. (See DSC RELATED PARTS SENSOR INITIALIZATION PROCEDURE.)
10	VERIFY WHETHER MALFUNCTION IS IN INSTRUMENT CLUSTER OR DSC HU/CM • Connect the M-MDS (IDS) to the DLC-2. • Turn off and on all warning light and indicator lights using the instrument cluster PID WL+IL of active command modes. (See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].) • Do the ABS warning light, brake system warning light, TCS/DSC indicator light and DSC OFF indicator light turn on and off according to the active command modes?	Yes	Replace the DSC HU/CM. (Internal malfunction) (See DSC HU/CM REMOVAL/INSTALLATION.)
No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

STEP

INSPECTION

ACTION

CONFIRM DSC HU/CM DTC

• Retrieve the DSC HU/CM DTC using the M-MDS (IDS).

(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

If communication error message is displayed on the M-MDS (IDS) screen:

• Go to the next step.

If communication error message is not displayed:

• Go to Step 6.

INSPECT CONNECTION OF DSC HU/CM CONNECTOR

• Inspect for connection of the DSC HU/CM connector.

• Is the DSC HU/CM connector connected securely?

Yes

Go to the next step.

Connect the DSC HU/CM connector securely, then go to Step 6.

INSPECT DSC HU/CM POWER SUPPLY FUSE

• Inspect the DSC HU/CM ignition power supply fuse.

• Is the fuse normal?

Yes

Go to the next step.

Inspect the blown fuse’s circuit for short to ground.

Repair or replace the wiring harness for a possible short to ground as necessary.

Install appropriate amperage fuse.

^*4

VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN DSC HU/CM POWER SUPPLY AND DSC HU/CM FOR CONTINUITY) OR ELSEWHERE

• Switch the ignition to ON.

• Measure the voltage at the DSC HU/CM terminal Q (wiring harness-side).

• Is the voltage approx. 12 V?

Yes

Go to the next step.

Refer to the wiring diagram and verify whether or not there is a common connector between DSC HU/CM terminal Q (wiring harness-side) and ignition switch.

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has an open circuit.

^*5

VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN DSC HU/CM AND GND FOR CONTINUITY) OR ELSEWHERE

• Switch the ignition to off.

• Disconnect the DSC HU/CM connector.

• Inspect for continuity between DSC HU/CM terminal AL (wiring harness-side) and body ground.

• Is there continuity?

Yes

Replace the DSC HU/CM. (open circuit in the DSC HU/CM)

(See DSC HU/CM REMOVAL/INSTALLATION.)

Repair or replace the wiring harness for a possible open circuit and poor contact in ground point.

CONFIRM PCM DTCs

• Retrieve the PCM DTCs using the M-MDS (IDS).

(See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)

(SeeON-BOARD DIAGNOSTIC TEST [SKYACTIV-D 2.2].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)

(See DTC TABLE [SKYACTIV-D 2.2].)

Go to the next step.

VERIFY IF MALFUNCTION CAUSED BY INITIALIZATION PROCEDURE FOR MODULE NOT PERFORMED

• Verify if malfunction caused by initialization procedure for brake fluid pressure sensor not performed.

• Has the initial setting for the brake fluid pressure sensor been performed after replacing the DSC HU/CM?

Yes

Go to the next step.

Perform the brake fluid pressure sensor initial setting.

VERIFY IF MALFUNCTION CAUSED BY INITIALIZATION PROCEDURE FOR LOW-G SENSOR NOT PERFORMED

• Verify if malfunction caused by initialization procedure for low-G sensor not performed.

• Has the initial setting for the low-G sensor been performed after replacing the DSC HU/CM and the SAS control module?

Yes

Go to the next step.

Perform the low-G sensor initial setting.

VERIFY IF MALFUNCTION CAUSED BY INITIALIZATION PROCEDURE FOR YAW RATE SENSOR NOT PERFORMED

• Verify if malfunction caused by initialization procedure for yaw rate sensor not performed.

• Has the initial setting for the yaw rate sensor been performed after replacing the DSC HU/CM and the SAS control module?

Yes

Go to the next step.

Perform the yaw rate sensor initial setting.

VERIFY WHETHER MALFUNCTION IS IN INSTRUMENT CLUSTER OR DSC HU/CM

• Connect the M-MDS (IDS) to the DLC-2.

• Turn off and on all warning light and indicator lights using the instrument cluster PID WL+IL of active command modes.

(See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].)

• Do the ABS warning light, brake system warning light, TCS/DSC indicator light and DSC OFF indicator light turn on and off according to the active command modes?

Yes

Replace the DSC HU/CM. (Internal malfunction)

(See DSC HU/CM REMOVAL/INSTALLATION.)

Replace the instrument cluster.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, check to make sure connectors, terminals and wiring harness are connected correctly and undamaged.