Nissan X-Trail 32. Manual - part 808

P2100, P2103 THROTTLE CONTROL MOTOR RELAY

EC-361

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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P2100, P2103 THROTTLE CONTROL MOTOR RELAY

DTC Description

INFOID:0000000010775256

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Throttle control motor relay circuit is open.)
• Throttle control motor relay

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
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 more than 8 V at idle.
Witch DTC is detected?

P2100 >> GO TO 2.
P2103 >> GO TO 3.

2.

PERFORM DTC CONFIRMATION PROCEDURE-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

>> Proceed to 

EC-362, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

3.

PERFORM DTC CONFIRMATION PROCEDURE-DTC P2103

1.

Turn ignition switch ON and wait at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC-362, "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

P2100

ETC MOT PWR-B1
(Throttle actuator “A” control motor circuit/
open)

ECM detects a voltage of power source for throttle control motor is exces-
sively low.

P2103

ETC MOT PWR-B1
(Throttle actuator “A” control motor circuit 
high)

ECM detect the throttle control motor relay is stuck ON.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Others

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed 
opening (approx. 5 degrees) by the return spring.

EC-362

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P2100, P2103 THROTTLE CONTROL MOTOR RELAY

Diagnosis Procedure

INFOID:0000000010775257

1.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Check the voltage between ECM harness connectors.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT

1.

Disconnect ECM harness connector.

2.

Disconnect IPDM E/R harness connector.

3.

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

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace malfunctioning part.

3.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL

1.

Check the voltage between ECM harness connectors.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 4.

4.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Disconnect IPDM E/R harness connector.

4.

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

5.

Also check harness for short to ground and to power.

+

−

Voltage

(Approx.)

ECM

Connector

Terminal

Connector

Terminal

F8

65

E16

128

Battery voltage

+

−

Continuity

ECM

IPDM E/R

Connector

Terminal

Connector

Terminal

F8

65

F72

72

Existed

+

−

Condition

Voltage

(Approx.)

ECM

Connector

Terminal

Connector

Terminal

F8

80

E16

128

Ignition switch

OFF

0 V

ON

Battery voltage

+

−

Continuity

ECM

IPDM E/R

Connector

Terminal

Connector

Terminal

F8

80

F72

67

Existed

P2100, P2103 THROTTLE CONTROL MOTOR RELAY

EC-363

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

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EC

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Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace malfunctioning part.

EC-364

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

DTC Description

INFOID:0000000010775258

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Crankshaft position sensor (POS)
- Throttle control motor circuit is open or shorted.
- Throttle control motor relay circuit is open or shorted.
• Electric throttle control actuator

FAIL-SAFE

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P2101 is displayed with DTC P2100 or P2119, first perform the trouble diagnosis for DTC P2100 or
P2119.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-109, "DTC Index"

.

NO

>> GO TO 2.

2.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
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 more than 11 V at idle.

>> GO TO 3.

3.

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

>> Proceed to 

EC-364, "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:0000000010775259

1.

CHECK DTC PRIORITY

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P2101

ETC FNCTN/CIRC-B1
(Throttle actuator “A” control motor circuit 
range/performance)

Electric throttle control function does not operate properly.

Engine operating condition in fail-safe mode

Fail safe mode

Vehicle behavior

Others

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed 
opening (approx. 5 degrees) by the return spring.