Nissan Qashqai (2007-2010). Manual - part 470

P1089 FUEL PUMP

EC-1399

< COMPONENT DIAGNOSIS >

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4.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

Refer to 

EC-1264, "BASIC INSPECTION : Special Repair Requirement [TEST 4: High Pressure Supply Pump

(Volumetric Control Valve) Check]"

.

Is the inspection result normal?

OK

>> GO TO 5.

NG

>> Replace or replace. Then GO TO 9.

5.

CHECK RAIL HIGH PRESSURE REGULATION 

Refer to 

EC-1267, "BASIC INSPECTION : Special Repair Requirement (TEST 5: Rail High Pressure Regula-

tion Check)"

.

Is the inspection result normal?

OK

>> GO TO 6.

NG

>> Replace or replace. Then GO TO 9.

6.

CHECK MAJOR LEAK IN FUEL INJECTORS/FUEL INJECTORS OPEN

Refer to 

EC-1271, "BASIC INSPECTION : Special Repair Requirement (TEST 6: Major Leak in Fuel Injectors/

Fuel Injectors Open)"

.

Is the inspection result normal?

OK

>> GO TO 7.

NG

>> Replace or replace. Then GO TO 9.

7.

CHECK INCORRECT FUEL INJECTION QUANTITY

Refer to 

EC-1272, "BASIC INSPECTION : Special Repair Requirement (TEST 7: Incorrect Fuel Injection

Quantity)"

.

Is the inspection result normal?

OK

>> GO TO 8.

NG

>> Replace or replace. Then GO TO 9.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> INSPECTIO END.

NO

>> Repair or replace. Then GO TO 9.

9.

CLEAR PRESSURE REGULATION

Perform “PRESS_REG_ADAPTIVE” in WORK SUPPORT mode with CONSULT-III.

>> INSPECTION END.

EC-1400

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P2101 ELECTRIC THROTTLE CONTROL FUNCTION

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

Description

INFOID:0000000000955032

By default the valve is open when in the rest position and is actuated only when the engine is switched off; this
has a damping effect and helps to stop the engine.

DTC Logic

INFOID:0000000001115104

DTC DETECTION LOGIC

NOTE:
• Conditions for applying the diagnostic procedure to the stored DTCs:

The DTC is declared present after the engine is started or following a load test.

• Special note:

If DTC P2101 2.DEF is displayed, first perform trouble diagnosis for DTC P0120. Refer to 

EC-1345,

"DTC Logic"

.

Diagnosis Procedure

INFOID:0000000000955036

1.

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

 Check ground connection E17. Refer to Ground inspection in 

GI-41, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect electric throttle control actuator harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between electric throttle control actuator harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.
• IPDM E/R 
• Harness connector E7, F121
• Harness for open or short between IPDM E/R and electric throttle control actuator
• Harness for open or short between ECM and electric throttle control actuator

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

4.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT-I

DTC No.

Trouble diagnosis name

Possible cause

P2101

THROTTLECONTROL MOTOR CIRCUIT
• 1.DEF: No signal
• 2.DEF:   
• 3.DEF: Values out of range
• 4.DEF: Signal incoherence

• Harness or connectors

(Throttle control motor circuit is open or 
shorted.)

• Throttle control motor

Electric throttle control actua-

tor

Ground

Voltage

Connector

Terminal

F81

1

Ground

Battery voltage

P2101 ELECTRIC THROTTLE CONTROL FUNCTION

EC-1401

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1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

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

4.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

5.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT-II

1.

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

2.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

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

6.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT-III

1.

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

2.

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

Is the inspection result normal?

YES

>> GO TO 7.

NO

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

7.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace electric throttle control actuator.

NO

>> Repair or replace.

Component Inspection

INFOID:0000000000955037

1.

CHECK THROTTLE CONTROL MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect electric throttle control actuator harness connector.

3.

Check resistance between electric throttle control actuator terminals as follows.

Is the inspection result normal?

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F81

5

F68

72

Existed

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F81

2

F68

94

Existed

Electric throttle control actuator

ECM

Continuity

Connector

Terminal

Connector

Terminal

F81

4

F68

90

Existed

Terminals

Resistance

1 and 2

21 

±

 2.1

Ω

 [23

°

C (73

°

F)]

EC-1402

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P2101 ELECTRIC THROTTLE CONTROL FUNCTION

YES

>> INSPECTION END

NO

>> Replace electric throttle control actuator.