Infiniti M45 (Y34). Manual - part 436

 

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Infiniti M45 (Y34). Manual - part 436

 

 

DTC P1111, P1136 IVT CONTROL SOLENOID VALVE

EC-433

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2. 

DETECT MALFUNCTIONING PART

Check the following.

Harness connectors M135, F105

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

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

3. 

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR 

OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between the following;
ECM terminal 152 (bank 1) and intake valve timing control solenoid valve terminal 1 or 
ECM terminal 155 (bank 2) and intake valve timing control solenoid valve terminal 1.
Refer to Wiring Diagram.

4.

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

OK or NG

OK

>> GO TO 4.

NG

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

4. 

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to 

EC-433, "Component Inspection"

 .

OK or NG

OK

>> GO TO 5.

NG

>> Replace intake valve timing control solenoid valve.

5. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-132, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

Component Inspection

ABS002N2

INTAKE VALVE TIMING CONTROL SOLENOID VALVE

1.

Disconnect intake valve timing control solenoid valve harness connector.

2.

Check resistance between intake valve timing control solenoid
valve terminals as follows.

Removal and Installation

ABS002N3

INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to 

EM-38, "TIMING CHAIN"

 .

Continuity should exist.

Terminals

Resistance

1 and 2

7.0 - 7.7

 [at 20

°

C (68

°

F)]

1 or 2 and ground

∞Ω

(Continuity should not exist)

PBIB0193E

EC-434

DTC P1119 RADIATOR COOLANT TEMPERATURE SENSOR

DTC P1119 RADIATOR COOLANT TEMPERATURE SENSOR

PFP:22630

Component Description

ABS002N4

The radiator coolant temperature sensor is installed on the radiator
lower tank and used to detect the radiator coolant temperature. The
sensor modifies a voltage signal from the ECM and returns the mod-
ified signal to the ECM as the radiator coolant temperature input.
The sensor uses a thermistor which is sensitive to the change in
temperature. The electrical resistance of thermistor decreases as
temperature increase. The ECM uses this signal to control the cool-
ing fan speed control solenoid valve.

<Reference data>

*: This data is reference values and is measured between ECM terminal 122 (Radia-
tor coolant temperature sensor) and ground.

CAUTION:

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

On Board Diagnosis Logic

ABS002N5

This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis.

FAIL-SAFE MODE

When the malfunction is detected, the ECM enters fail-safe mode.

SEF594K

Radiator coolant temperature

°

C (

°

F)

Voltage*

V

Resistance

k

10 (14)

4.4

9.017 - 9.723

20 (68)

3.5

2.437 - 2.595

90 (194)

0.9

0.2416 - 0.2575

110 (230)

0.64

0.1451 - 0.1522

150 (302)

0.32

0.05927 - 0.06267

SEF012P

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1119
1119

Radiator coolant temperature 
sensor circuit

An excessively high or low voltage from the 
radiator coolant temperature sensor is sent to 
ECM.

Harness or connectors
(The radiator coolant temperature 
sensor circuit is open or shorted.)

Radiator coolant temperature sensor

Detected items

Engine operating condition in fail-safe mode

Radiator coolant temperature sensor circuit

ECM controls on assumption that the radiator coolant temperature is 97 

°

C (207 

°

F).

DTC P1119 RADIATOR COOLANT TEMPERATURE SENSOR

EC-435

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DTC Confirmation Procedure

ABS002N7

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

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Wait at least 5 seconds.

4.

If DTC is detected, go to 

EC-437, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure WITH CONSULT-II above.

SEF058Y

EC-436

DTC P1119 RADIATOR COOLANT TEMPERATURE SENSOR

Wiring Diagram

ABS002N8

TBWA0305E

 

 

 

 

 

 

 

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