Nissan Murano Z50 (2005 year). Manual

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

EC-403

Revision: 2005 August

2005 Murano

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

G/B

A/F sensor 1 heater
(Bank 1)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 5V

PBIB1584E

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

EC-405

Revision: 2005 August

2005 Murano

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

ABS00A62

CHECK GROUND CONNECTIONS

Turn ignition switch OFF.

Loosen and retighten two ground screws on the body.
Refer to

EC-166, "Ground Inspection"

OK or NG

>> GO TO 2.

>> Repair or replace ground connections.

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

A/F sensor 1 heater
(Bank 2)

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 5V

PBIB1584E

PBIB1835E

EC-406

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

Revision: 2005 August

2005 Murano

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT

Disconnect air fuel ratio (A/F) sensor 1 harness connector.

Turn ignition switch ON.

Check voltage between A/F sensor 1 terminal 3 and ground with
CONSULT-II or tester.

OK or NG

>> GO TO 8.

>> GO TO 3.

CHECK CONDENSER CIRCUIT-I

Turn ignition switch OFF.

Disconnect fuse block (J/B) harness connector M1.

Check resistance between fuse block (J/B) terminal 9A and ground.
Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 4.

>> GO TO 5.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors M82, F102

●

Fuse block (J/B) connector M1

●

15A fuse

●

Harness for open or short between A/F sensor 1 and fuse

>> Repair harness or connectors.

Voltage: Battery voltage

PBIB2293E

PBIB1683E

Resistance: Above 1M

Ω

at 25

C (77

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

EC-407

Revision: 2005 August

2005 Murano

CHECK CONDENSER CIRCUIT-II

Disconnect condenser harness connectors.

Check harness continuity between fuse block (J/B) terminal 9A and condenser terminal 1, condenser ter-
minal 2 and ground.
Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 6.

>> Repair open circuit or short to ground or short to power in harness or connectors.

CHECK CONDENSER

Refer to

EC-408, "CONDENSER"

OK or NG

>> GO TO 7.

>> Replace condenser.

CHECK INTERMITTENT INCIDENT

Refer to

EC-157, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check harness continuity between ECM terminal 2 (bank 1) or 24 (bank 2) and A/F sensor 1 terminal 4.
Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 9.

>> Repair open circuit or short to ground or short to power in harness or connectors.

CHECK A/F SENSOR 1 HEATER

Refer to

EC-408, "Component Inspection"

OK or NG

>> GO TO 10.

>> Replace A/F sensor 1.

10.

CHECK INTERMITTENT INCIDENT

Perform

EC-157, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

OK or NG

>> Go to 11.

>> Repair or replace.

Continuity should exist.

EC-408

DTC P1031, P1032, P1051, P1052 A/F SENSOR 1 HEATER

Revision: 2005 August

2005 Murano

11.

REPLACE AIR FUEL RATIO (A/F) SENSOR 1

Replace air fuel ratio (A/F) sensor 1.

CAUTION:

●

Discard any air fuel ratio (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 air fuel ratio (A/F) sensor, clean exhaust system threads using Heated Oxy-
gen Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.

>> INSPECTION END

Component Inspection

ABS00A63

AIR FUEL RATIO (A/F) SENSOR 1 HEATER

Check resistance between terminals 3 and 4.

Check continuity between terminals 3 and 1, 2, 5, 6, terminals 4 and
1, 2, 5, 6.

If NG, replace the A/F sensor 1.

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
J-43897-18 or J-43897-12 and approved anti-seize lubricant.

CONDENSER

Turn ignition switch OFF.

Disconnect condenser harness connector.

Check resistance between condenser terminals 1 and 2.

Removal and Installation

ABS00A64

AIR FUEL RATIO (A/F) SENSOR 1

Refer to

EM-25, "EXHAUST MANIFOLD AND THREE WAY CATALYST"

Resistance: 2.3 - 4.3

Ω

at 25

C (77

Continuity should not exist.

PBIB1684E

Resistance

Above 1 M

Ω

at 25

C (77

PBIB0794E

DTC P1065 ECM POWER SUPPLY

EC-409

Revision: 2005 August

2005 Murano

DTC P1065 ECM POWER SUPPLY

PFP:23710

Component Description

ABS004IS

Battery voltage is supplied to the ECM even when the ignition switch
is turned OFF for the ECM memory function of the DTC memory, the
air-fuel ratio feedback compensation value memory, the idle air vol-
ume learning value memory, etc.

On Board Diagnosis Logic

ABS004IT

DTC Confirmation Procedure

ABS004IU

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.

WITH CONSULT-II

Turn ignition switch ON and wait at least 1 second.

Select “DATA MONITOR” mode with CONSULT-II.

Start engine and let it idle for 1 second.

Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.

Repeat steps 3 and 4 for 4 times.

If 1st trip DTC is detected, go to

EC-411, "Diagnostic Procedure"

WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB1164E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1065
1065

ECM power supply cir-
cuit

ECM back-up RAM system does not function
properly.

●

Harness or connectors
[ECM power supply (back-up) circuit is
open or shorted.]

●

ECM

SEF058Y

DTC P1065 ECM POWER SUPPLY

EC-411

Revision: 2005 August

2005 Murano

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Diagnostic Procedure

ABS004IW

CHECK ECM POWER SUPPLY

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check voltage between ECM terminal 121 and ground with
CONSULT-II or tester.

OK or NG

>> GO TO 3.

>> GO TO 2.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E110, M7

●

15A fuse

●

Harness for open or short between ECM and battery

>> Repair or replace harness or connectors.

CHECK INTERMITTENT INCIDENT

Refer to

EC-157, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

OK or NG

>> GO TO 4.

>> Repair or replace harness or connectors.

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

121

Power supply for ECM
(Back-up)

[Ignition switch: OFF]

BATTERY VOLTAGE
(11 - 14V)

Voltage: Battery voltage

MBIB0026E

EC-412

DTC P1065 ECM POWER SUPPLY

Revision: 2005 August

2005 Murano

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT-II

Turn ignition switch ON.

Select “SELF DIAG RESULTS” mode with CONSULT-II.

Touch “ERASE”.

Perform DTC Confirmation Procedure.
See

EC-409

Is the 1st trip DTC P1065 displayed again?

With GST

Turn ignition switch ON.

Select Service $04 with GST.

Perform DTC Confirmation Procedure.
See

EC-409

Is the 1st trip DTC P1065 displayed again?

Yes or No

Yes

>> GO TO 5.

>> INSPECTION END

REPLACE ECM

Replace ECM.

Perform initialization of NVIS(NATS) system and registration of all NVIS(NATS) ignition key IDs. Refer to

BL-236, "ECM Re-communicating Function"

Perform

EC-89, "VIN Registration"

Perform

EC-89, "Accelerator Pedal Released Position Learning"

Perform

EC-89, "Throttle Valve Closed Position Learning"

Perform

EC-90, "Idle Air Volume Learning"

>> INSPECTION END

DTC P1111, P1136 IVT CONTROL SOLENOID VALVE

EC-413

Revision: 2005 August

2005 Murano

DTC P1111, P1136 IVT CONTROL SOLENOID VALVE

PFP:23796

Component Description

ABS004IX

Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.

CONSULT-II Reference Value in Data Monitor Mode

ABS004IY

Specification data are reference values.

On Board Diagnosis Logic

ABS004IZ

DTC Confirmation Procedure

ABS004J0

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.

WITH CONSULT-II

Turn ignition switch ON.

Select “DATA MONITOR” mode with CONSULT-II.

Start engine and let it idle for 5 seconds.

If 1st trip DTC is detected, go to

EC-417, "Diagnostic Procedure"

WITH GST

Following the procedure “WITH CONSULT-II” above.

PBIB1842E

MONITOR ITEM

CONDITION

SPECIFICATION

INT/V SOL (B1)
INT/V SOL (B2)

●

Engine: After warming up

●

Shift lever: P or N

●

Air conditioner switch: OFF

●

No-load

Idle

0% - 2%

2,000 rpm

Approx. 0% - 50%

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1111
1111
(Bank 1)

Intake valve timing control
solenoid valve circuit

An improper voltage is sent to the ECM
through intake valve timing control solenoid
valve.

●

Harness or connectors
(Intake valve timing control solenoid valve
circuit is open or shorted.)

●

Intake valve timing control solenoid valve

P1136
1136
(Bank 2)

SEF058Y

DTC P1111, P1136 IVT CONTROL SOLENOID VALVE

EC-415

Revision: 2005 August

2005 Murano

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

Intake valve timing control
solenoid valve (bank 1)

[Engine is running]

●

Warm-up condition

●

Idle speed

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm.

7 - 12V

PBIB1790E

DTC P1111, P1136 IVT CONTROL SOLENOID VALVE

EC-417

Revision: 2005 August

2005 Murano

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

ABS004J2

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect intake valve timing control solenoid valve harness connector.

Turn ignition switch ON.

Check voltage between intake valve timing control solenoid
valve terminal 2 and ground with CONSULT-II or tester.

OK or NG

>> GO TO 3.

>> GO TO 2.

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

Intake valve timing control
solenoid valve (bank 2)

[Engine is running]

●

Warm-up condition

●

Idle speed

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm.

7 - 12V

PBIB1790E

Voltage: Battery voltage

PBIB1363E

PBIB0192E

EC-418

DTC P1111, P1136 IVT CONTROL SOLENOID VALVE

Revision: 2005 August

2005 Murano

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E110, M7

●

Harness connectors M82, F102

●

Harness connectors F29, F201 (bank 1)

●

IPDM E/R harness connector E7

●

Harness for open or short between intake valve timing control solenoid valve and IPDM E/R

●

Harness for open or short between intake valve timing control solenoid valve and ECM

>> Repair harness or connectors.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR

OPEN AND SHORT

Turn ignition switch OFF.

Disconnect ECM harness connector.

Check harness continuity between ECM terminal 11 (bank 1) or 10 (bank 2) and intake valve timing con-
trol solenoid valve terminal 1. Refer to Wiring Diagram.

Also check harness for short to ground and short to power.

OK or NG

>> GO TO 5.

>> GO TO 4.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors F29, F201 (bank 1)

●

Harness for open and short between ECM and intake valve timing control solenoid valve

>> Repair open circuit or short to ground or short to power in harness or connectors.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to

EC-419, "Component Inspection"

OK or NG

>> GO TO 6.

>> Replace intake valve timing control solenoid valve.

CHECK INTERMITTENT INCIDENT

Refer to

EC-157, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

>> INSPECTION END

Continuity should exist.

Nissan Murano Z50 (2005 year). Manual - part 103