Nissan Frontier D22. Manual - part 594

DTC P0340 CMP SENSOR

EC-1479

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Crank engine for at least 2 seconds.

4.

If 1st trip DTC is detected, go to 

EC-1482, "Diagnostic Proce-

dure"

 .

 With GST

Follow the procedure “With CONSULT-II”.

PROCEDURE FOR MALFUNCTION B AND C

 With CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and run it for at least 2 seconds at idle speed.

4.

If 1st trip DTC is detected, go to 

EC-1482, "Diagnostic Proce-

dure"

 .

 With GST

Follow the procedure “With CONSULT-II”.

SEF058Y

SEF058Y

EC-1480

[VG33ER]

DTC P0340 CMP SENSOR

Wiring Diagram

UBS00DX8

BBWA0482E

DTC P0340 CMP SENSOR

EC-1481

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

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 the 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)

4

OR/B

ECM relay
(Self shutoff)

[Engine is running]
[Ignition switch: OFF]

●

For a few seconds after turning ignition switch 
OFF

0 - 1.5V

[Ignition switch: OFF]

●

A few seconds passed after turning ignition 
switch OFF

BATTERY VOLTAGE
(11 - 14V)

44

PU

Camshaft position 
sensor (Reference 
signal)

[Engine is running]

●

Idle speed

NOTE:
The pulse cycle changes depending on rpm at 
idle

0.3 - 0.5V

[Engine is running]

●

Engine speed is 2,000 rpm

0.3 - 0.5V

49

LG

Camshaft position 
sensor (Position sig-
nal)

[Engine is running]

●

Warm-up condition

●

Idle speed

NOTE:
The pulse cycle changes depending on rpm at 
idle

Approximately 2.5V

[Engine is running]

●

Engine speed is 2,000 rpm

Approximately 2.5V

67

B/P

Power supply for 
ECM

 [Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

72

B/P

[Ignition switch: ON]

BATTERY VOLTAGE
(11 - 14V)

117

B/P

Current return

[Engine is running]

●

Idle speed

BATTERY VOLTAGE
(11 - 14V)

SEF997U

SEF998U

SEF999U

SEF001V

EC-1482

[VG33ER]

DTC P0340 CMP SENSOR

Diagnostic Procedure

UBS00DX9

1. 

RETIGHTEN GROUND SCREWS

1.

Turn ignition switch OFF.

2.

Loosen and retighten engine ground screws.

>> GO TO 2.

2. 

CHECK CMP SENSOR POWER SUPPLY CIRCUIT

1.

Disconnect camshaft position (CMP) sensor harness connector.

2.

Turn ignition switch ON.

3.

Check voltage between CMP sensor terminal 5 and ground with
CONSULT-II or tester.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness for open or short between camshaft position sensor and ECM relay

●

Harness for open or short between camshaft position sensor and ECM

>> Repair harness or connectors.

BBIA0418E

AEC647A

Voltage: Battery voltage

SEF708U