Nissan Qashqai J11. Manual - part 2240

DMS

DIAGNOSIS AND REPAIR WORK FLOW

DMS-13

< BASIC INSPECTION >

[ECO MODE (CVT)]

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1.

GET INFORMATION FOR SYMPTOM

Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred) using the 

TM-278, "Diagnostic Work Sheet"

 [TCM (RE0F10D)], 

TM-498,

"Diagnostic Work Sheet"

 [TCM (RE0F10G)] or 

ECM-123, "Diagnostic Work Sheet"

 [ECM (MR20DD)].

>> GO TO 2.

2.

CHECK DTC IN TCM AND ECM

1.

Check DTC in TCM and ECM (MR20DD engine).

2.

If a DTC is detected, perform the following steps, and after this, erase DTC.

-

Print (or write down) the detected DTC and freeze frame data.

-

Check DTC logic.

-

Study the relationship between the cause detected by DTC and the symptom described by the customer.

3.

Check related Service Bulletins.

Are any symptoms described and any DTCs detected?

Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.

3.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom. Refer to 

TM-263, "Fail-safe"

 [TCM

(RE0F10D)], 

TM-478, "Fail-safe"

 [TCM (RE0F10G)] or 

ECM-87, "Fail-safe"

 [ECM (MR20DD)].

Diagnosis Work Sheet is useful to verify the incident.
Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 5.

4.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.
Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 6.

5.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC CONFIRMATION PROCEDURE for the displayed DTC, and then check that DTC is detected
again.
If two or more DTCs are detected, refer to 

TM-266, "DTC Inspection Priority Chart"

 [TCM (RE0F10D)], 

TM-

484, "DTC Inspection Priority Chart"

 [TCM (RE0F10G)] or 

ECM-91, "DTC Inspection Priority Chart"

 [ECM

(MR20DD)], and determine trouble diagnosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service

Manual. This simplified check procedure is an effective alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.

Is DTC detected?

YES

>> GO TO 7.

NO

>> Check ECO mode system. Refer to 

DMS-15, "Component Function Check"

.

6.

DETECT MALFUNCTIONING PART BY SYMPTOM DIAGNOSIS

Detect malfunctioning system according to Symptom Diagnosis based on the confirmed symptom in step 4,
and determine the trouble diagnosis order based on possible causes and symptoms.

Is the symptom described?

YES

>> GO TO 7.

DMS-14

< BASIC INSPECTION >

[ECO MODE (CVT)]

DIAGNOSIS AND REPAIR WORK FLOW

NO

>> Monitor input data from related sensors or check voltage of related TCM and ECM terminals using

CONSULT. Refer to 

TM-256, "Reference Value"

 [TCM (RE0F10D)], 

TM-471, "Reference Value"

[TCM (RE0F10G)] or 

ECM-73, "Reference Value"

 [ECM (MR20DD)].

7.

DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE

Inspect according to Diagnosis Procedure of the system.
Is a malfunctioning part detected?

YES

>> GO TO 8.

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

8.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1.

Repair or replace the malfunctioning part.

2.

Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.

3.

Check DTC. If DTC is displayed, erase it.

>> GO TO 9.

9.

FINAL CHECK

When DTC was detected in step 3, perform DTC CONFIRMATION PROCEDURE or Component Function
Check again, and then check that the malfunction have been completely repaired.
When symptom was described from the customer, refer to confirmed symptom in step 4 or 5, and check that
the symptom is not detected.
Is DTC detected and does symptom remain?

YES-1 >> DTC is detected: GO TO 7.
YES-2 >> Symptom remains: GO TO 4.
NO

>> Before returning the vehicle to the customer, always erase DTC.

DMS

ECO MODE SWITCH

DMS-15

< DTC/CIRCUIT DIAGNOSIS >

[ECO MODE (CVT)]

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DTC/CIRCUIT DIAGNOSIS

ECO MODE SWITCH

Component Function Check

INFOID:0000000010433948

1.

 CHECK ECO MODE INDICATOR LAMP FUNCTION

1.

Turn ignition switch ON.

2.

Check ECO mode indicator lamp turns ON/OFF on combination meter when turn ECO mode switch ON/
OFF.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Proceed to 

DMS-15, "Diagnosis Procedure"

.

2.

 CHECK ECO MODE SWITCH ILLUMINATION FUNCTION

1.

Turn ON the tail lamp.

2.

Check ECO mode switch illumination lights up.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

DMS-15, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010433949

1.

CHECK ECO MODE SWITCH ILLUMINATION FUNCTION

1.

Turn ignition switch ON.

2.

Turn ON the tail lamp.

3.

Check that the ECO mode switch illumination lights up.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 2.

2.

CHECK ECO MODE SWITCH ILLUMINATION POWER SUPPLY-1

1.

Turn OFF the tail lamp.

2.

Turn ignition switch OFF.

3.

Disconnect ECO mode switch harness connector.

4.

Turn ignition switch ON.

5.

Turn ON the tail lamp.

6.

Check the voltage between ECO mode switch harness connector terminals.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

. If OK, replace ECO mode

switch. Refer to 

DMS-19, "Removal and Installation"

.

NO

>> GO TO 3.

3.

CHECK ECO MODE SWITCH ILLUMINATION POWER SUPPLY-2

Check the voltage between ECO mode switch harness connector and ground.

ECO mode switch

Voltage

Connector

+

-

Terminal

M109

3

4

Battery voltage

DMS-16

< DTC/CIRCUIT DIAGNOSIS >

[ECO MODE (CVT)]

ECO MODE SWITCH

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK ECO MODE SWITCH ILLUMINATION POWER SUPPLY CIRCUIT

1.

Turn OFF the tail lamp.

2.

Turn ignition switch OFF.

3.

Disconnect combination meter harness connector.

4.

Check the continuity between combination meter harness connector and ECO mode switch harness con-
nector.

5.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace error-detected parts.

5.

CHECK GROUND CIRCUIT

1.

Turn OFF the tail lamp.

2.

Turn ignition switch OFF.

3.

Check continuity between ECO mode switch harness connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Repair harness or connector.

6.

CHECK ECO MODE SWITCH CIRCUIT

1.

Turn OFF the tail lamp.

2.

Turn ignition switch OFF.

3.

Disconnect ECO mode switch harness connector.

4.

Turn ignition switch ON.

5.

Check voltage between ECO mode switch harness connector.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> GO TO 7.

+

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Voltage

ECO mode switch

Connector

Terminal

M109

3

Ground

Battery voltage

+

−

Continuity

Combination meter

ECO mode switch

Connector

Terminal

Connector

Terminal

M52

43

M109

3

Existed

+

−

Continuity

ECO mode switch

Connector

Terminal

M109

4

Ground

Existed

ECO mode switch

Voltage

(Approx.)

Connector

+

-

Terminal

M109

2

1

10 V