Nissan Teana J32. Manual - part 439

 

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Nissan Teana J32. Manual - part 439

 

 

EC-294

< COMPONENT DIAGNOSIS >

[VQ25DE, VQ35DE]

P2100, P2103 THROTTLE CONTROL MOTOR RELAY

P2100, P2103 THROTTLE CONTROL MOTOR RELAY

Description

INFOID:0000000003856780

Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle
control motor relay is controlled ON/OFF by the ECM. When the ignition switch is turned ON, the ECM sends
an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition
switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not
provided to the ECM.

DTC Logic

INFOID:0000000003856781

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V.

Witch DTC is detected?

P2100 >> GO TO 2.
P2103 >> GO TO 3.

2.

PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P2100

1.

Turn ignition switch ON and wait at least 2 seconds.

2.

Start engine and let it idle for 5 seconds.

3.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-294, "Diagnosis Procedure"

.

NO

>> INSPECTION END

3.

PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P2103

1.

Turn ignition switch ON and wait at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-294, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003856782

1.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Disconnect IPDM E/R harness connector.

4.

Check the continuity between IPDM E/R harness connector and ECM harness connector.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2100

Throttle control motor 
relay circuit open

ECM detects that the voltage of power source 
for throttle control motor is excessively low.

• Harness or connectors

(Throttle control motor relay circuit is 
open)

• Throttle control motor relay

P2103

Throttle control motor 
relay circuit short

ECM detects that the throttle control motor relay 
is stuck ON.

• Harness or connectors

(Throttle control motor relay circuit is 
shorted)

• Throttle control motor relay

P2100, P2103 THROTTLE CONTROL MOTOR RELAY

EC-295

< COMPONENT DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

5.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

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

2.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II

1.

Check the continuity between IPDM E/R harness connector and ECM harness connector.

2.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

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

3.

CHECK FUSE

1.

Disconnect 15A fuse (No. 51) from IPDM E/R.

2.

Check if 15A fuse is blown.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace 15A fuse.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-35, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair or replace harness or connectors.

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F12

70

F7

15

Existed

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F12

54

F7

2

Existed

EC-296

< COMPONENT DIAGNOSIS >

[VQ25DE, VQ35DE]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

Description

INFOID:0000000003856783

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor. The throttle position
sensor provides feedback to the ECM, when opens/closes the throttle valve in response to driving conditions
via the throttle control motor.

DTC Logic

INFOID:0000000003856784

DTC DETECTION LOGIC

NOTE:
If DTC P2101 is displayed with DTC P2100, first perform the trouble diagnosis for DTC P2100. Refer to

EC-294, "DTC Logic"

.

If DTC P2101 is displayed with DTC 2119, first perform the trouble diagnosis for DTC P2119. Refer to

EC-302, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V when
engine is running.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 2 seconds.

2.

Start engine and let it idle for 5 seconds.

3.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-296, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003856785

1.

CHECK GROUND CONNECTION

1.

Turn ignition switch OFF.

2.

Check ground connection E38. Refer to Ground Inspection in 

GI-37, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I

1.

Check the voltage between ECM harness connector and ground.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P2101

Electric throttle control 
performance

Electric throttle control function does not oper-
ate properly.

• Harness or connectors

(Throttle control motor circuit is open or 
shorted)

• Electric throttle control actuator

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

EC-297

< COMPONENT DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 3.

3.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Disconnect IPDM E/R harness connector.

4.

Check the continuity between IPDM E/R harness connector and ECM harness connector.

5.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

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

4.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II

1.

Check the continuity between IPDM E/R harness connector and ECM harness connector.

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK FUSE

1.

Disconnect 15A fuse (No. 51) from IPDM E/R.

2.

Check if 15A fuse is blown.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace 15A fuse.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-35, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

>> Repair or replace harness or connectors.

7.

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT

1.

Turn ignition switch OFF.

2.

Disconnect electric throttle control actuator harness connector.

3.

Disconnect ECM harness connector.

4.

Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.

ECM

Ground

Condition

Voltage

Connector

Terminal

F7

2

Ground

Ignition switch OFF

Approx. 0 V

Ignition switch ON

Battery voltage

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F12

70

F7

15

Existed

IPDM E/R

ECM

Continuity

Connector

Terminal

Connector

Terminal

F12

54

F7

2

Existed

 

 

 

 

 

 

 

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