Nissan X-Trail 32. Manual - part 796

P0604 ECM

EC-313

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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EC

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P0604 ECM

DTC Description

INFOID:0000000010775205

DTC DETECTION LOGIC

POSSIBLE CAUSE

ECM

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON (engine stopped) and wait least 20 minutes.

CAUTION:

Never start engine during this procedure.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-313, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010775206

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC confirmation procedure. Refer to 

EC-313, "DTC Description"

.

Is the 1st trip DTC P0604 displayed again?

YES

>> Replace ECM. Refer to 

EC-430, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0604

ECM
[Internal control module random access 
memory (RAM) error]

Malfunction in the internal RAM of ECM.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Others

(Computing part of ECM does not operate normally.)
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed 
opening (approx. 5 degrees) by the return spring.

EC-314

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P0605 ECM

P0605 ECM

DTC Description

INFOID:0000000010775207

DTC DETECTION LOGIC

POSSIBLE CAUSE

ECM

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more with ignition
switch ON.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON (engine stopped) and wait least 20 minutes.

CAUTION:

Never start engine during this procedure.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-314, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010775208

1.

INSPECTION START

1.

Erase self-diagnostic results. Refer to 

EC-81, "CONSULT Function"

.

2.

Perform “DTC Confirmation Procedure”. Refer to 

EC-314, "DTC Description"

.

Does 1st trip DTC P0605 duplicated?

YES

>> Replace ECM. Refer to 

EC-430, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0605

ECM
[Internal control module read only memory 
(ROM) error]

Malfunction in the internal ROM of ECM.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Others

(Computing part of ECM does not operate normally.)
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed 
opening (approx. 5 degrees) by the return spring.

P0606 ECM

EC-315

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P0606 ECM

DTC Description

INFOID:0000000010775209

DTC DETECTION LOGIC

POSSIBLE CAUSE

ECM

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-1

1.

Turn ignition switch ON (engine stopped) and wait at least 10 seconds.

CAUTION:

Never start engine during this procedure.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-316, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE-2

1.

Start engine.

2.

Rev up the engine quickly to approximately 3,000 rpm under unloaded condition and completely release
the accelerator pedal.

3.

Let the engine idle and wait at least 10 seconds.

4.

Turn ignition switch OFF and wait at least 10 seconds.

5.

Turn ignition switch ON.

6.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-316, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0606

CONTROL MODULE
(Control module processor)

Malfunction in ECM processor.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Others

(Computing part of ECM does not operate normally.)
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed 
opening (approx. 5 degrees) by the return spring.

EC-316

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P0606 ECM

Diagnosis Procedure

INFOID:0000000010775210

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC confirmation procedure for 3 times. Refer to 

EC-315, "DTC Description"

.

Is the 1st trip DTC P0606 displayed again?

YES

>> Replace ECM. Refer to 

EC-430, "Removal and Installation"

.

NO

>> INSPECTION END