Nissan Qashqai (2007-2010). Manual — part 449

POWER SUPPLY AND GROUND CIRCUIT

EC-1315

< COMPONENT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 11.

NO

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

11.

CHECK 20A FUSE

1.

Disconnect 20A fuse (No. 52) from IPDM E/R.

2.

Check 20A fuse.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> Replace 20A fuse.

12.

CHECK GROUND CONNECTION-II

1.

Turn ignition switch OFF.

2.

Check ground connection E9. Refer to Ground Inspection in

GI-41, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 13.

NO

>> Repair or replace ground connection.

13.

CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-II

1.

Disconnect ECM harness connector.

2.

Check the continuity between ECM harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 14.

NO

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

14.

CHECK INTERMITTENT INCIDENT

Refer to

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace IPDM E/R.

NO

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

ECM

Ground

Continuity

Connector

Terminal

E60

123

Ground

Existed

124

125

128

EC-1316

< COMPONENT DIAGNOSIS >

[K9K]

P0001 FUEL PUMP

P0001 FUEL PUMP

DTC Logic

INFOID:0000000001115046

DTC DETECTION LOGIC

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

The DTC becomes present after the engine is started.

• If the DTC is present:
- Malfunction indicator (Red) lights up.

Diagnosis Procedure

INFOID:0000000001034174

1.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE) POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect high pressure supply pump (volumetric control valve) harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between high pressure supply pump (volumetric control valve) harness connector and
ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connector E7, F121
• Harness for open or short between ECM and high pressure supply pump (volumetric control valve)
• Harness for open or short between IPDM E/R and high pressure supply pump (volumetric control valve)

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

3.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE) OUTPUT SIGNAL CIR-

CUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between high pressure supply pump (volumetric control valve) harness connector
and ECM harness connector.

4.

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

DTC No.

Trouble diagnosis name

Possible cause

P0001

HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
CIRCUIT
• CO: Open circuit
• CO.0: Short circuit to ground
• CC.1: Short circuit to +12V
• 1.DEF: Parameter at maximum level

• Harness or connectors

[High pressure supply pump (volumetric
control valve) circuit is open or shorted.]

• High pressure supply pump (volumetric

control valve)

• Fuel line

High pressure supply pump

(volumetric control valve)

Ground

Voltage

Connector

Terminal

F106

1

Ground

Battery voltage

High pressure supply pump

(volumetric control valve)

ECM

Continuity

Connector

Terminal

Connector

Terminal

F106

2

F68

50

Existed

P0001 FUEL PUMP

EC-1317

< COMPONENT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 4.

NO

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

4.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

Refer to

EC-1321, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace high pressure supply pump.

5.

CHECK FUEL LINE

Check fuel line cleanliness.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Fuel line cleanliness.

6.

CHECK INTERMITTENT INCIDENT

Refer to

GI-39, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000001034175

1.

CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

1.

Turn ignition switch OFF.

2.

Disconnect high pressure supply pump (volumetric control valve) harness connector.

3.

Check resistance between high pressure supply pump (volumetric control valve) terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace high pressure supply pump.

Terminals

Resistance

1 and 2

1.5 - 15

Ω

EC-1318

< COMPONENT DIAGNOSIS >

[K9K]

P0002 FUEL PUMP

P0002 FUEL PUMP

DTC Logic

INFOID:0000000001115051

DTC DETECTION LOGIC

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

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

Diagnosis Procedure

INFOID:0000000001034260

1.

CHECK LOW PRESSURE FUEL SUPPLY SYSTEM

Refer to

EC-1262, "BASIC INSPECTION : Special Repair Requirement (TEST 1: Low Pressure Fuel Supply

System Check)"

.

Is the inspection result normal?

OK

>> GO TO 2.

NG

>> Replace or replace. Then GO TO 9.

2.

CHECK INTERNAL FUEL TRANSFER PUMP

Refer to

EC-1263, "BASIC INSPECTION : Special Repair Requirement (TEST 2: Internal Fuel Transfer Pump

Check)"

.

Is the inspection result normal?

OK

>> GO TO 3.

NG

>> Replace or replace. Then GO TO 9.

3.

CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)

Refer to

EC-1263, "BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply Pump

(Pressure Control Valve) Check]"

.

Is the inspection result normal?

OK

>> GO TO 4.

NG

>> Replace or replace. Then GO TO 9.

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

DTC No.

Trouble diagnosis name

Possible cause

P0002

HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
ADAPTIVE
• 1.DEF: Parameter at maximum stop
• 2.DEF: Parameter at maximum level

• Harness or connectors

[High pressure supply pump (volumetric
control valve) circuit is open or shorted.]
(Fuel rail pressure sensor circuit is open or
shorted.)

• High pressure supply pump (volumetric

control valve)

• Fuel rail pressure sensor