Nissan Qashqai J11. Manual - part 544

EC9-332

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P160C ECM

2.

Go to 

EC9-144, "Work Procedure"

.

>> INSPECTION END

5.

CHECK OTHER DTC-2

1.

Start engine and let it idle for at least 1 minutes.

2.

Check DTC.

Is the DTC U0415, P0101, P0135, P0190, P0201, P0202, P0203, P0204, P0217, P0226, P0471, P0544,
P1544, P1620, P1650, P2002, P2080, P2243, P2244, P2263, P2626 or P2A06 displayed?

YES

>> Perform the trouble diagnosis for DTC U0415, P0101, P0135, P0190, P0201, P0202, P0203,

P0204, P0217, P0226, P0471, P0544, P1544, P1620, P1650, P2002, P2080, P2243, P2244,
P2263, P2626 or P2A06, and GO TO 3. Refer to 

EC9-108, "DTC Index"

.

NO

>> GO TO 6.

6.

CHECK RESULT OF PROCEDURE 2

Check result of procedure 2.
Is result of procedure 2 “YES”?

YES

>> GO TO 7.

NO

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

7.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Select “DATA MONITOR” mode with CONSULT.

2.

Drive the vehicle for at least 15 minutes at 0 - 50 km/h (0 - 31 MPH).

CAUTION:

Always drive vehicle at a safe speed.

3.

Check DTC.

Is DTC detected?

YES

>> Perform the trouble diagnosis for DTC U0415, P0101, P0135, P0190, P0201, P0202, P0203,

P0204, P0217, P0226, P0471, P0544, P1544, P1620, P1650, P2002, P2080, P2243, P2244,
P2263, P2626 or P2A06, and GO TO 3. Refer to 

EC9-108, "DTC Index"

.

NO

>> INSPECTION END

P160D ECM

EC9-333

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

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EC9

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P160D ECM

DTC Logic

INFOID:0000000010309333

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC9-333, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010309334

1.

INSPECTION START

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Turn ignition switch OFF and wait for 1 minute.

4.

Turn ignition switch ON and wait at least 1 second.

5.

Perform the self-diagnosis.

Is the DTC P160D displayed again?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

REPLACE ECM

1.

Replace ECM.

2.

Perform 

EC9-144, "Work Procedure"

.

>> INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P160D

COMPUTER
(Computer)
• 1.DEF: VALUES OUT-

SIDE TOLERANCES

ECM internal power supply malfunction.

ECM

EC9-334

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P1620 ECM

P1620 ECM

DTC Logic

INFOID:0000000010309335

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DIAGNOSIS PROCEDURE

NOTE:
DTC P1620 can not duplicate.

>> Proceed to 

EC9-334, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010309336

1.

CHECK ECM HARNESS CONNECTOR CONNECTIONS

1.

Turn ignition switch OFF.

2.

Check ECM harness connector connection.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK AIR FUEL RATIO (A/F) SENSOR HARNESS CONNECTOR CONNECTIONS

Check A/F sensor harness connector connection.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK A/F SENSOR CIRCUIT FOR OPEN AND SHORT

Check A/F sensor circuit for open and short.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK INTERMITTENT INCIDENT

Perform 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> GO TO 5.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1620

PROPOR RICH SEN FNC
(Proportional richness sensor func-
tion)
• 1.DEF: VALUES OUTSIDE TOL-

ERANCES

ECM function is malfunctioning.

ECM

+

-

Continuity

ECM

A/F sensor

Connector

Terminal

Connector

Terminal

F82

89

F75

3

Existed

F83

115

6

116

2

119

1

P1620 ECM

EC9-335

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

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EC9

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NO

>> Repair or replace error-detected parts.

5.

REPLACE A/F SENSOR

Replace A/F sensor.

CAUTION:

• Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a

hard surface such as a concrete floor; use a new one.

• Before installing new A/F sensor, clean exhaust system threads using Heated Oxygen Sensor

Thread Cleaner tool and approved anti-seize lubricant.

>> INSPECTION END