NO.31 SCR SYSTEM WARNING INDICATION TURNED ON OR FLASHES/MESSAGE RELATED TO SCR SYSTEM INDICATED IN DISPLAY [SKYACTIV-D 2.2]

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31

SCR SYSTEM WARNING INDICATION TURNED ON OR FLASHES/MESSAGE RELATED TO SCR SYSTEM INDICATED IN DISPLAY

DESCRIPTION

•  The following messages are indicated in the display.

―  “Low Adblue^® level No start in 2400 km”

―  “Refill Adblue^® Speed Will Be Limited in 700 km No start in 1400 km”

―  “Vehicle speed Restricted Refill Adblue^® No start in 700 km”

―  “Engine start disabled Adblue^® empty Refill now”

―  “Improper Adblue^® Speed Will Be Limited in 50.No start in 700 km”

―  “Excessive emissions use proper Adblue^®”

―  “Vehicle speed restricted Improper start in 650 km”

―  “Engine start disabled Improper Adblue^®”

―  “Dosing Malfunction Speed Will Be Limited to 50 km. No start in 700 km”

―  “Excessive emissions Contact your dealer”

―  “Vehicle speed restricted Dosing malfunction No start in 650 km”

―  “Engine start disabled Dosing malfunction”

―  “SCR malfunction Speed Will Be Limited to 50 km. No start in 700 km”

―  “Vehicle speed restricted SCR malfunction No start in 650 km”

―  “Engine start disabled SCR malfunction”

―  “Overfilled Adblue^® Drain excess AdBlue^® as soon as possible”

POSSIBLE CAUSE

•  Improper AdBlue^® level

•  PCM DTC is stored.

•  Dosing control unit DTC is stored.

•  SCR system malfunction

―  Urea injector malfunction

―  Urea PUMP malfunction

―  Urea hose malfunction (AdBlue^® leakage)

―  Urea tank malfunction (AdBlue^® leakage)

―  Urea level sensor malfunction

―  Urea temperature sensor malfunction

―  Urea quality sensor malfunction

―  Urea tank heater malfunction

―  Urea hose heater malfunction

•  Exhaust gas temperature sensor No.4 malfunction

•  Exhaust gas temperature sensor No.5 malfunction

•  NOx sensor No.1/No.2 malfunction

•  Improper AdBlue^® used

•  Inferior fuel used (sulfur content is high)

•  Instrument cluster malfunction

31	SCR SYSTEM WARNING INDICATION TURNED ON OR FLASHES/MESSAGE RELATED TO SCR SYSTEM INDICATED IN DISPLAY
DESCRIPTION	• The following messages are indicated in the display. ― “Low Adblue^® level No start in 2400 km” ― “Refill Adblue^® Speed Will Be Limited in 700 km No start in 1400 km” ― “Vehicle speed Restricted Refill Adblue^® No start in 700 km” ― “Engine start disabled Adblue^® empty Refill now” ― “Improper Adblue^® Speed Will Be Limited in 50.No start in 700 km” ― “Excessive emissions use proper Adblue^®” ― “Vehicle speed restricted Improper start in 650 km” ― “Engine start disabled Improper Adblue^®” ― “Dosing Malfunction Speed Will Be Limited to 50 km. No start in 700 km” ― “Excessive emissions Contact your dealer” ― “Vehicle speed restricted Dosing malfunction No start in 650 km” ― “Engine start disabled Dosing malfunction” ― “SCR malfunction Speed Will Be Limited to 50 km. No start in 700 km” ― “Vehicle speed restricted SCR malfunction No start in 650 km” ― “Engine start disabled SCR malfunction” ― “Overfilled Adblue^® Drain excess AdBlue^® as soon as possible”
POSSIBLE CAUSE	• Improper AdBlue^® level • PCM DTC is stored. • Dosing control unit DTC is stored. • SCR system malfunction ― Urea injector malfunction ― Urea PUMP malfunction ― Urea hose malfunction (AdBlue^® leakage) ― Urea tank malfunction (AdBlue^® leakage) ― Urea level sensor malfunction ― Urea temperature sensor malfunction ― Urea quality sensor malfunction ― Urea tank heater malfunction ― Urea hose heater malfunction • Exhaust gas temperature sensor No.4 malfunction • Exhaust gas temperature sensor No.5 malfunction • NOx sensor No.1/No.2 malfunction • Improper AdBlue^® used • Inferior fuel used (sulfur content is high) • Instrument cluster malfunction

Diagnostic Procedure

STEP

INSPECTION

RESULTS

ACTION

1

INSPECT FOR MALFUNCTION DUE TO LACK OF REMAINING AdBlue^®

•  Verify the AdBlue^® level.

Without multi-information display

―  Access the following PIDs using the M-MDS:
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  RE_TANK_LV

With multi-information display

―  Press the INFO switch to verify the AdBlue^® level in the multi information display.

•  Is the AdBlue^® level 65% or more?

Yes

Go to the next step.

No

Add AdBlue^®.

(See AdBlue® REPLACEMENT [SKYACTIV-D 2.2].)

Go to Step 10.

2

VERIFY PCM DTC

•  Retrieve PCM DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].)

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

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

No

Go to the next step.

3

VERIFY DOSING CONTORL UNIT DTC

•  Retrieve dosing control unit DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)

•  Are any DTCs present?

Yes

Go to the applicable DTC inspection.

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

No

Go to the next step.

4

INSPECT FOR AdBlue^® LEAKAGE FROM SCR SYSTEM

•  Visually inspect the following:

―  AdBlue^® leakage from the urea injector, SCR converter, hose, pipe, urea tank

―  Clamp installation condition for each hose and pipe

―  Securing condition of each part due to deterioration such as clamp rubber

•  Are all items normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning part according to the inspection results, then go to Step 10.

5

INSPECT SCR SYSTEM RELATED PARTS

•  Inspect the following parts:

―  Urea injector
(See UREA INJECTOR INSPECTION [SKYACTIV-D 2.2].)

―  Urea PUMP
(See UREA PUMP INSPECTION [SKYACTIV-D 2.2].)

―  Urea level sensor
(See UREA LEVEL SENSOR INSPECTION [SKYACTIV-D 2.2].)

―  Urea temperature sensor
(See UREA TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].)

―  AdBlue^® quality sensor
(See UREA QUALITY SENSOR INSPECTION [SKYACTIV-D 2.2].)

―  Urea tank heater
(See UREA TANK HEATER INSPECTION [SKYACTIV-D 2.2].)

―  Urea hose heater
(See UREA HOSE HEATER INSPECTION [SKYACTIV-D 2.2].)

•  Are all items normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning part according to the inspection results, then go to Step 10.

•  Urea injector:
(See UREA INJECTOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

•  Urea PUMP:
(See UREA PUMP REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

•  Urea level sensor:
(See UREA LEVEL SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

•  Urea temperature sensor:
(See UREA TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

•  AdBlue^® quality sensor:
(See UREA QUALITY SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

•  Urea tank heater, urea hose heater:
(See EMISSION SYSTEM LOCATION INDEX [SKYACTIV-D 2.2].)

6

INSPECT EXHAUST GAS TEMPERATURE SENSOR No.4/No.5

•  Inspect the exhaust gas temperature sensor No.4/No.5.
(See EXHAUST GAS TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].)

•  Is the exhaust gas temperature sensor No.4/No.5 normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning part according to the inspection results, then go to Step 10.

(See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

7

INSPECT NOx SENSOR NO.1/NO.2

•  Inspect the NOx sensor No.1/No.2.
(See NOx SENSOR INSPECTION [SKYACTIV-D 2.2].)

•  Is the NOx sensor No.1/No.2 normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning part according to the inspection results, then go to Step10.

(See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

8

INSPECT FOR MALFUNCTION DUE TO POOR AdBlue^®

•  Replace the AdBlue^®.
(See UREA PUMP INSPECTION [SKYACTIV-D 2.2].)

•  Does the symptom disappear?

Yes

Advise the customer as to the change in the AdBlue^® used, then go to Step 10.

No

Go to the next step.

9

INSPECT INSTRUMENT CLUSTER

•  Inspect the instrument cluster.
(See INSTRUMENT CLUSTER INSPECTION.)

•  Is the instrument cluster normal?

Yes

Replace the SCR converter, then go to the next step.

(See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

No

Repair or replace the malfunctioning part according to the inspection results, then go to the next step.

(See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

10

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

•  Has the malfunction symptom been eliminated?

Yes

Complete the symptom troubleshooting.(Explain repair contents to customer)

No

Repeat the inspection from Step 1.

STEP	INSPECTION	RESULTS	ACTION
1	INSPECT FOR MALFUNCTION DUE TO LACK OF REMAINING AdBlue^® • Verify the AdBlue^® level. Without multi-information display ― Access the following PIDs using the M-MDS: (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • RE_TANK_LV With multi-information display ― Press the INFO switch to verify the AdBlue^® level in the multi information display. • Is the AdBlue^® level 65% or more?	Yes	Go to the next step.
1		No	Add AdBlue^®. (See AdBlue® REPLACEMENT [SKYACTIV-D 2.2].) Go to Step 10.
2	VERIFY PCM DTC • Retrieve PCM DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-D 2.2)].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-D 2.2)].)
2		No	Go to the next step.
3	VERIFY DOSING CONTORL UNIT DTC • Retrieve dosing control unit DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)
3		No	Go to the next step.
4	INSPECT FOR AdBlue^® LEAKAGE FROM SCR SYSTEM • Visually inspect the following: ― AdBlue^® leakage from the urea injector, SCR converter, hose, pipe, urea tank ― Clamp installation condition for each hose and pipe ― Securing condition of each part due to deterioration such as clamp rubber • Are all items normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning part according to the inspection results, then go to Step 10.
5	INSPECT SCR SYSTEM RELATED PARTS • Inspect the following parts: ― Urea injector (See UREA INJECTOR INSPECTION [SKYACTIV-D 2.2].) ― Urea PUMP (See UREA PUMP INSPECTION [SKYACTIV-D 2.2].) ― Urea level sensor (See UREA LEVEL SENSOR INSPECTION [SKYACTIV-D 2.2].) ― Urea temperature sensor (See UREA TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].) ― AdBlue^® quality sensor (See UREA QUALITY SENSOR INSPECTION [SKYACTIV-D 2.2].) ― Urea tank heater (See UREA TANK HEATER INSPECTION [SKYACTIV-D 2.2].) ― Urea hose heater (See UREA HOSE HEATER INSPECTION [SKYACTIV-D 2.2].) • Are all items normal?	Yes	Go to the next step.
5		No	Repair or replace the malfunctioning part according to the inspection results, then go to Step 10. • Urea injector: (See UREA INJECTOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) • Urea PUMP: (See UREA PUMP REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) • Urea level sensor: (See UREA LEVEL SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) • Urea temperature sensor: (See UREA TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) • AdBlue^® quality sensor: (See UREA QUALITY SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) • Urea tank heater, urea hose heater: (See EMISSION SYSTEM LOCATION INDEX [SKYACTIV-D 2.2].)
6	INSPECT EXHAUST GAS TEMPERATURE SENSOR No.4/No.5 • Inspect the exhaust gas temperature sensor No.4/No.5. (See EXHAUST GAS TEMPERATURE SENSOR INSPECTION [SKYACTIV-D 2.2].) • Is the exhaust gas temperature sensor No.4/No.5 normal?	Yes	Go to the next step.
6		No	Repair or replace the malfunctioning part according to the inspection results, then go to Step 10. (See EXHAUST GAS TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
7	INSPECT NOx SENSOR NO.1/NO.2 • Inspect the NOx sensor No.1/No.2. (See NOx SENSOR INSPECTION [SKYACTIV-D 2.2].) • Is the NOx sensor No.1/No.2 normal?	Yes	Go to the next step.
7		No	Repair or replace the malfunctioning part according to the inspection results, then go to Step10. (See NOx SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
8	INSPECT FOR MALFUNCTION DUE TO POOR AdBlue^® • Replace the AdBlue^®. (See UREA PUMP INSPECTION [SKYACTIV-D 2.2].) • Does the symptom disappear?	Yes	Advise the customer as to the change in the AdBlue^® used, then go to Step 10.
8		No	Go to the next step.
9	INSPECT INSTRUMENT CLUSTER • Inspect the instrument cluster. (See INSTRUMENT CLUSTER INSPECTION.) • Is the instrument cluster normal?	Yes	Replace the SCR converter, then go to the next step. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
9		No	Repair or replace the malfunctioning part according to the inspection results, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
10	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting.(Explain repair contents to customer)
10		No	Repeat the inspection from Step 1.