Nissan X-Trail 32. Manual - part 1002

P1546 EXHAUST GAS TEMPERATURE

EC-1137

< DTC/CIRCUIT DIAGNOSIS >

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P1546 EXHAUST GAS TEMPERATURE

DTC Description

INFOID:0000000010935837

DTC DETECTION LOGIC

POSSIBLE CAUSE

Diesel particulate filter

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P1546 is displayed with following DTC, first perform the trouble diagnosis for following DTC.
• DTC P0001, P0002, P0101, P0190, P0200, P0201, P0202, P0203, P0204, P0627, P1453, P1544 and

P2002

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-908, "DTC Index"

.

NO

>> GO TO 2.

2.

PERFORM DIAGNOSIS PROCEDURE

NOTE:
DTC P1546 can not duplicate.

>> Proceed to 

EC-1137, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010935838

1.

CHECK OTHER DTC

If DTC P1546 is displayed with other DTC, perform trouble diagnosis for other DTC.

>> INSPECTION END.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P1546

TEMP. UPSTREAM OF PF
(Temperature upstream of particle filter)
• 1.DEF: EXCESSIVE TEMPERATURE

Diesel particulate filter temperature is more than 1,200 

°

C (2,192 

°

F).

EC-1138

< DTC/CIRCUIT DIAGNOSIS >

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P1589 NEUTRAL SWITCH

P1589 NEUTRAL SWITCH

DTC Description

INFOID:0000000010935839

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Neutral position switch circuit is shorted.)
• Neutral position switch

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

PERFORM COMPONENT FUNCTION CHECK

NOTE:
Use Component Function Check the overall function of the neutral position switch circuit. During this check,
the DTC might not be confirmed.

With CONSULT

1.

Turn ignition switch ON.

2.

Select “MANUAL GEARBOX LEVER IN NEUTRAL” in “DATA MONITOR” mode of “ECM” using CON-
SULT.

3.

Check the “MANUAL GEARBOX LEVER IN NEUTRAL” indication as per the following conditions.

Without CONSULT

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connectors as per the following conditions.

Is the inspection result normal?

YES-1 >> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

YES-2 >> Confirmation after repair: INSPECTION END
NO

>> Proceed to 

EC-1138, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010935842

1.

CHECK FUSE

Check that the following fuse is not fusing.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P1589

GEAR BOX NEUTRAL CONTACTOR
(Gear box neutral contactor)
• 1.DEF: IMPLAUSIBLE SIGNAL

Neutral position switch signal remains ON for a long driving distance.

Selector lever position

Indication

Neutral position

DETECTED

Except above position

NOT DETECTED

+

−

Condition

Voltage

(Approx.)

ECM

Connector

Terminal

F117

80

Ground

Shift lever

Neutral

Battery voltage

Except above

0 V

Fuse No.

Capacity

#97

10 A

P1589 NEUTRAL SWITCH

EC-1139

< DTC/CIRCUIT DIAGNOSIS >

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Is the fuse fusing?

YES

>> Replace the fuse after repairing the applicable circuit.

NO

>> GO TO 2.

2.

CHECK NEUTRAL POSITION SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect neutral position switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between neutral position switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK NEUTRAL POSITION SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector.

3.

Check the continuity between neutral position switch harness connector and IPDM E/R harness connec-
tor.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

4.

CHECK NEUTRAL POSITION INPUT SIGNAL CIRCUIT-1

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between neutral position switch harness connector and ECM harness connector.

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK NEUTRAL POSITION INPUT SIGNAL CIRCUIT-2

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between neutral position switch harness connector and IPDM E/R harness connec-
tor.

+

−

Voltage

(Approx.)

Neutral position switch

Connector

Terminal

F48

2

Ground

Battery voltage

+

−

Continuity

Neutral position switch

IPDM E/R

Connector

Terminal

Connector

Terminal

F48

2

F72

71

Existed

+

−

Continuity

Neutral position switch

ECM

Connector

Terminal

Connector

Terminal

F48

1

F117

80

Existed

EC-1140

< DTC/CIRCUIT DIAGNOSIS >

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P1589 NEUTRAL SWITCH

3.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-44, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace neutral position switch.

NO

>> Repair or replace error-detected parts.

+

−

Continuity

Neutral position switch

IPDM E/R

Connector

Terminal

Connector

Terminal

F48

2

F74

94

Existed