Juke F15 (2012 year). Service Repair Manual — part 137

FUEL INJECTOR

EC-401

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

C

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EC

N

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4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK FUEL INJECTOR DRIVER POWER SUPPLY

1.

Reconnect ECM harness connector.

2.

Turn ignition switch ON.

3.

Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

NO

>> GO TO 4.

4.

CHECK FUEL INJECTOR DRIVER POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Disconnect fuel injector relay harness connector.

4.

Check the continuity between ECM harness connector and fuel injector relay harness connector.

5.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts

5.

CHECK FUEL INJECTOR RELAY POWER SUPPLY (CONTACT SIDE)

Check the voltage between fuel injector relay harness connector and ground.

+

−

Continuity

Fuel injector

ECM

Cylinder

Connector

Terminal

Connector

Terminal

1

F65

1

F25

3

Existed

2

F66

1

4

3

F67

1

4

F68

1

3

+

−

Voltage

ECM

Connector

Terminal

F26

49

Ground

Battery voltage

53

+

−

Continuity

ECM

Fuel injector relay

Connector

Terminal

Connector

Terminal

F26

49

E57

5

Existed

53

7

+

−

Voltage

Fuel injector relay

Connector

Terminal

E57

3

Ground

Battery voltage

6

EC-402

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

FUEL INJECTOR

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Perform the trouble diagnosis for power supply circuit.

6.

CHECK FUEL INJECTOR RELAY POWER SUPPLY (EXCITATION COIL SIDE)

1.

Reconnect all harness connectors disconnected.

2.

Turn ignition switch ON.

3.

Check the voltage between fuel injector relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 7.

7.

CHECK FUEL INJECTOR RELAY POWER SUPPLY CIRCUIT (EXCITATION COIL SIDE)

1.

Turn ignition switch OFF.

2.

Disconnect fuel injector relay harness connector.

3.

Disconnect IPDM E/R harness connector.

4.

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

5.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

8.

CHECK FUEL INJECTOR RELAY GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect fuel injector relay harness connector.

3.

Check the continuity between fuel injector relay harness connector and ground.

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace error-detected parts.

9.

CHECK FUEL INJECTOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between fuel injector harness connector and ECM harness connector.

+

−

Voltage

Fuel injector relay

Connector

Terminal

E57

1

Ground

Battery voltage

+

−

Continuity

IPDM E/R

Fuel injector relay

Connector

Terminal

Connector

Terminal

E14

35

E57

1

Existed

+

−

Continuity

Fuel injector relay

Connector

Terminal

E57

2

Ground

Existed

FUEL INJECTOR

EC-403

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

C

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EC

N

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4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace error-detected parts.

10.

CHECK FUEL INJECTOR RELAY

Check the fuel injector relay. Refer to

EC-403, "Component Inspection (Fuel Injector Relay)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

NO

>> Replace fuel injector relay. Refer to

PG-7, "Standardized Relay"

.

11.

CHECK FUEL INJECTOR

Check the fuel injector. Refer to

EC-403, "Component Inspection (Fuel Injector)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

NO

>> Replace malfunctioning fuel injector. Refer to

EM-47, "Exploded View"

.

Component Inspection (Fuel Injector)

INFOID:0000000006547238

1.

CHECK FUEL INJECTOR

1.

Turn ignition switch OFF.

2.

Disconnect fuel injector harness connector.

3.

Check resistance between fuel injector terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning fuel injector.

EM-47, "Exploded View"

Component Inspection (Fuel Injector Relay)

INFOID:0000000006635940

1.

CHECK FUEL INJECTOR RELAY

1.

Turn ignition switch OFF.

2.

Remove fuel injector relay. Refer to

PG-7, "Standardized Relay"

.

+

−

Continuity

Fuel injector

ECM

Cylinder

Connector

Terminal

Connector

Terminal

1

F65

2

F25

5

Existed

2

F66

2

6

3

F67

2

7

4

F68

2

8

Fuel injector

Resistance

+

−

Terminals

1

2

1.44 - 1.73

Ω

[at 10 - 60

°

C (50 - 140

°

F)]

EC-404

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

FUEL INJECTOR

3.

Check the continuity between fuel heater relay terminals as per
the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel injector relay. Refer to

PG-7, "Standardized Relay"

.

+

−

Conditions

Continuity

Fuel injector relay

Terminal

3

5

12 V direct current supply between ter-
minals 1 and 2

Existed

No current supply

Not existed

6

7

12 V direct current supply between ter-
minals 1 and 2

Existed

No current supply

Not existed

PBIB0077E

LOW PRESSURE FUEL PUMP

EC-405

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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LOW PRESSURE FUEL PUMP

M/T MODELS

M/T MODELS : Component Function Check

INFOID:0000000006598997

1.

CHECK FUEL PUMP FUNCTION

1.

Turn ignition switch ON.

2.

Pinch fuel feed hose with two fingers.
NOTE:
Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

EC-405, "M/T MODELS : Diagnosis Procedure"

.

M/T MODELS : Diagnosis Procedure

INFOID:0000000006642407

1.

CHECK FPCM POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect FPCM harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between FPCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK FPCM POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector.

3.

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

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK FPCM GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between FPCM harness connector and ground.

+

−

Voltage

FPCM

Connector

Terminal

B61

10

Ground

Battery voltage

+

−

Continuity

FPCM

IPDM E/R

Connector

Terminal

Connector

Terminal

B61

10

E15

54

Existed

+

−

Continuity

FPCM

Connector

Terminal

B61

5

Ground

Existed

EC-406

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

LOW PRESSURE FUEL PUMP

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK FPCM INPUT AND OUTPUT CIRCUITS

1.

Disconnect ECM harness connector.

2.

Check the continuity between FPCM harness connector and ECM harness connector.

3.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK FUEL PUMP CONTROL CIRCUIT

1.

Disconnect fuel level sensor unit (fuel pump) harness connector.

2.

Check the continuity between FPCM harness connector and fuel level sensor unit (fuel pump) harness
connector.

3.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK LOW PRESSURE FUEL PUMP

Check the low pressure fuel pump. Refer to

EC-406, "M/T MODELS : Component Inspection (Low Pressure

Fuel Pump)"

.

Is the inspection result normal?

YES

>> Check intermittent incident .Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace fuel level sensor unit. Refer to

FL-6, "2WD : Exploded View"

(2WD) or

FL-10, "4WD :

Exploded View"

(4WD).

7.

CHECK FPCM

Check the FPCM. Refer to

EC-407, "M/T MODELS : Component Inspection (FPCM)"

.

Is the inspection result normal?

YES

>> Check intermittent incident .Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace FPCM. Refer to

EC-448, "Removal and Installation"

.

M/T MODELS : Component Inspection (Low Pressure Fuel Pump)

INFOID:0000000006598999

1.

CHECK FUEL PRESSURE REGULATOR

1.

Turn ignition switch OFF.

2.

Check low fuel pressure. Refer to

EC-140, "Work Procedure"

.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

FPCM

ECM

Continuity

Connector

Terminal

Connector

Terminal

B61

8

F26

91

Existed

9

96

FPCM

Fuel level sensor unit (fuel pump)

Continuity

Connector

Terminal

Connector

Terminal

B61

6

B40

2

Existed

7

4

LOW PRESSURE FUEL PUMP

EC-407

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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EC

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2.

CHECK LOW PRESSURE FUEL PUMP

1.

Turn ignition switch OFF.

2.

Disconnect fuel level sensor unit.

3.

Check resistance between fuel level sensor unit terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel level sensor unit. Refer to

FL-6, "2WD : Exploded View"

(2WD) or

FL-10, "4WD :

Exploded View"

(4WD).

M/T MODELS : Component Inspection (FPCM)

INFOID:0000000006635037

1.

CHECK FUEL PUMP CONTROL MODULE (FPCM)

Check the voltage between FPCM terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace FPCM. Refer to

EC-448, "Removal and Installation"

.

EXCEPT FOR M/T MODELS

EXCEPT FOR M/T MODELS : Component Function Check

INFOID:0000000006642504

1.

CHECK FUEL PUMP FUNCTION

1.

Turn ignition switch ON.

2.

Pinch fuel feed hose with two fingers.
NOTE:
Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

EC-405, "M/T MODELS : Diagnosis Procedure"

.

EXCEPT FOR M/T MODELS : Diagnosis Procedure

INFOID:0000000006642591

1.

CHECK FUEL PUMP RELAY POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between ECM harness connector terminals.

Fuel level sensor unit

Condition

Resistance

+

−

Terminals

2

4

Temperature: 25

°

C (77

°

F)

0.2 - 5.0

Ω

FPCM

Condition

Voltage

(Approx.)

Connector

+

−

Terminal

B61

7

6

For 1 second after turning ignition
switch ON

10 V

More than 1 second after turning
ignition switch ON

0 V

Idle speed

10 V

EC-408

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

LOW PRESSURE FUEL PUMP

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FUEL PUMP RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

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.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK LOW FUEL PUMP POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Reconnect ECM harness connector.

3.

Disconnect fuel level sensor unit harness connector.

4.

Turn ignition switch ON.

5.

Check the voltage between fuel level sensor unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK LOW FUEL PUMP POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector.

3.

Check the continuity between fuel level sensor unit harness connector and IPDM E/R harness connector.

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

ECM

Voltage

Connector

+

-

Terminal

E18

117

127

Battery voltage

+

−

Continuity

ECM

IPDM E/R

Connector

Terminal

Connector

Terminal

E18

117

E13

31

Existed

+

-

Voltage

Fuel level sensor unit

Connector

Terminal

B46

4

Ground

Battery voltage should for exist 1
second after ignition switch is turn
ON.

+

−

Continuity

Fuel level sensor unit

Connector

Terminal

Connector

Terminal

B46

4

E15

54

Existed

LOW PRESSURE FUEL PUMP

EC-409

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

C

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EC

N

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NO

>> Repair or replace error-detected parts.

5.

CHECK LOW FUEL PUMP GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between fuel level sensor unit harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK LOW FUEL PUMP

Check the low fuel pump. Refer to

EC-409, "EXCEPT FOR M/T MODELS : Component Inspection (Low Pres-

sure Fuel Pump)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace fuel level sensor unit. Refer to

FL-6, "2WD : Exploded View"

(2WD) or

FL-10, "4WD :

Exploded View"

(4WD).

EXCEPT FOR M/T MODELS : Component Inspection (Low Pressure Fuel Pump)

INFOID:0000000006642506

1.

CHECK FUEL PRESSURE REGULATOR

1.

Turn ignition switch OFF.

2.

Check low fuel pressure. Refer to

EC-140, "Work Procedure"

.

Is inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK LOW PRESSURE FUEL PUMP

1.

Turn ignition switch OFF.

2.

Disconnect fuel level sensor unit.

3.

Check resistance between fuel level sensor unit terminals as follows.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel level sensor unit. Refer to

FL-6, "2WD : Exploded View"

(2WD) or

FL-10, "4WD :

Exploded View"

(4WD).

+

-

Continuity

Fuel level sensor unit

Connector

Terminal

B46

2

Ground

Existed

Fuel level sensor unit

Condition

Resistance

+

−

Terminals

2

4

Temperature: 25

°

C (77

°

F)

0.2 - 5.0

Ω

EC-410

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

HIGH PRESSURE FUEL PUMP

HIGH PRESSURE FUEL PUMP

Component Function Check

INFOID:0000000006598991

1.

CHECK HIGH PRESSURE FUEL PUMP FUNCTION

With CONSULT-III

1.

Start engine.

2.

Check “FUEL PRES SEN V” in “DATA MONITOR” mode of “ENGINE” using CONSULT-III.

Without CONSULT-III

1.

Start engine.

2.

Check the voltage between ECM harness connector terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

EC-410, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006598992

1.

CHECK HIGH PRESSURE FUEL PUMP POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector and ground.

Is inspection result normal?

Monitor Item

Condition

Values/Status

FUEL PRES SEN V

Engine speed: Idle

980 – 1,200 mV

Engine speed: Revving engine
from idle to 4,000 rpm quickly

1,100 – 2,900 mV

ECM

Condition

Voltage

Connector

+

−

Terminal

F26

55

50

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending on rpm
at idle

BATTERY VOLTAGE

(11 - 14 V)

[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm

BATTERY VOLTAGE

(11 - 14 V)

JPBIA4722ZZ

JPBIA4723ZZ

+

−

Voltage

ECM

Connector

Terminal

F26

54

Ground

Battery voltage

HIGH PRESSURE FUEL PUMP

EC-411

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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N

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YES

>> GO TO 8.

NO

>> GO TO 2.

2.

CHECK HIGH PRESSURE FUEL PUMP POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Disconnect fuel injector relay harness connector.

4.

Check the continuity between ECM harness connector and high pressure fuel pump relay harness con-
nector.

5.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts

3.

CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY (CONTACT SIDE)

Check the voltage between high pressure fuel pump relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Perform the trouble diagnosis for power supply circuit.

4.

CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY (EXCITATION COIL SIDE)

1.

Reconnect all harness connectors disconnected.

2.

Turn ignition switch ON.

3.

Check the voltage between high pressure fuel pump relay harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5

5.

CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY CIRCUIT (EXCITATION COIL SIDE)

1.

Turn ignition switch OFF.

2.

Disconnect high pressure fuel pump relay harness connector.

3.

Disconnect IPDM E/R harness connector.

4.

check the continuity between ipdm e/r harness connector and high pressure fuel pump harness connec-
tor.

+

−

Continuity

ECM

High pressure fuel pump re-

lay

Connector

Terminal

Connector

Terminal

F26

54

E58

3

Existed

+

−

Voltage

High pressure fuel pump relay

Connector

Terminal

E58

5

Ground

Battery voltage

+

−

Voltage

High pressure fuel pump relay

Connector

Terminal

E58

2

Ground

Battery voltage

EC-412

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

HIGH PRESSURE FUEL PUMP

5.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

6.

CHECK HIGH PRESSURE FUEL PUMP RELAY GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect high pressure fuel pump relay harness connector.

3.

Check the continuity between high pressure fuel pump relay harness connector and ground.

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK HIGH PRESSURE FUEL PUMP RELAY

Check the high pressure fuel pump relay. Refer to

EC-413, "Component Inspection (High Pressure Fuel Pump

Relay)"

.

Is inspection result normal?

YES

>> GO TO 8.

NO

>> Replace high pressure fuel pump relay. Refer to

PG-7, "Standardized Relay"

.

8.

CHECK HIGH PRESSURE FUEL PUMP CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector and high pressure fuel pump harness connector.

3.

Check the continuity between ECM harness connector and high pressure fuel pump harness connector.

4.

Also check harness for short to ground and to power.

Is inspection result normal?

YES

>> GO TO 9.

NO

>> Repair or replace error-detected parts.

9.

CHECK HIGH PRESSURE FUEL PUMP

Check the high pressure fuel pump. Refer to

EC-413, "Component Inspection"

.

Is inspection result normal?

YES

>> GO TO 10.

NO

>> Replace high pressure fuel pump. Refer to

EM-43, "Exploded View"

.

+

−

Continuity

IPDM E/R

High pressure fuel pump re-

lay

Connector

Terminal

Connector

Terminal

E14

35

E58

2

Existed

+

−

Continuity

High pressure fuel pump relay

Connector

Terminal

E58

1

Ground

Existed

+

−

Continuity

ECM

High pressure fuel pump

Connector

Terminal

Connector

Terminal

F26

55

F53

1

Existed

56

2

HIGH PRESSURE FUEL PUMP

EC-413

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

C

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N

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10.

CHECK HIGH PRESSURE FUEL PUMP INSTALLATION CONDITION

1.

Turn ignition switch OFF.

2.

Check that the high pressure fuel pump is installed with no backlash and looseness.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace error-detected parts.

11.

CHECK CAMSHAFT

1.

Remove camshaft. Refer to

EM-78, "Exploded View"

.

2.

Check camshaft. Refer to

EM-82, "Inspection"

.

Is inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace camshaft. Refer to

EM-78, "Exploded View"

.

Component Inspection

INFOID:0000000006598993

1.

CHECK HIGH PRESSURE FUEL PUMP SOLENOID

1.

Turn ignition switch OFF.

2.

Disconnect high pressure fuel pump harness connector.

3.

Check the resistance between high pressure fuel pump connector terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace high pressure fuel pump. Refer to

EM-43, "Exploded View"

.

Component Inspection (High Pressure Fuel Pump Relay)

INFOID:0000000006635941

1.

CHECK HIGH PRESSURE FUEL PUMP RELAY

1.

Turn ignition switch OFF.

2.

Remove high pressure fuel pump relay. Refer to

PG-7, "Standardized Relay"

.

3.

Check the continuity between high pressure fuel pump relay ter-
minals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace high pressure fuel pump relay. Refer to

PG-7, "Standardized Relay"

.

High pressure fuel pump

Condition

Resistance

+

−

Terminal

1

2

Temperature

20 – 30

°

C (68 – 86

°

F)

9 – 11

Ω

+

−

Conditions

Continuity

High pressure fuel

pump relay

Terminal

3

5

12 V direct current supply between ter-
minals 1 and 2

Existed

No current supply

Not existed

SEF090M

EC-414

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

IGNITION SIGNAL

IGNITION SIGNAL

Component Function Check

INFOID:0000000006547244

1.

INSPECTION START

Turn ignition switch OFF, and restart engine.
Does the engine start?

YES

>> GO TO 2.

NO

>> Proceed to

EC-414, "Diagnosis Procedure"

.

2.

IGNITION SIGNAL FUNCTION

With CONSULT-III

1.

Perform “POWER BALANCE” in “ACTIVE TEST” mode of “ENGINE” using CONSULT-III.

2.

Check that each circuit produces a momentary engine speed drop.

Without CONSULT-III

1.

Let engine idle.

2.

Check the voltage signal between ECM harness connector and ground with an oscilloscope.

NOTE:
The pulse cycle changes depending on rpm at idle.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

EC-414, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006547245

1.

CHECK CONDENSER POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect condenser harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between condenser harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK CONDENSER POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector.

3.

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

ECM

Voltage signal

+

−

Connector

Terminal

Connector

Terminal

F26

82

E18

127

86

90

94

JPBIA4733ZZ

+

−

Voltage

Condenser

Connector

Terminal

F13

1

Ground

Battery voltage

IGNITION SIGNAL

EC-415

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK CONDENSER GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between Condenser harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK CONDENSER

Check the condenser. refer to

EC-417, "Component Inspection (Condenser)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace condenser.

5.

CHECK IGNITION COIL POWER SUPPLY

1.

Reconnect all harness connectors disconnected.

2.

Disconnect ignition coil harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between ignition coil harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Perform the trouble diagnosis for power supply circuit.

6.

CHECK IGNITION COIL GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between ignition coil harness connector and ground.

+

−

Continuity

IPDM E/R

Condenser

Connector

Terminal

Connector

Terminal

E15

61

F13

1

Existed

+

−

Continuity

Condenser

Connector

Terminal

F13

2

Ground

Existed

+

−

Voltage

Ignition coil

Cylinder

Connector

Terminal

1

F33

3

Ground

Battery voltage

2

F34

3

3

F35

3

4

F36

3

EC-416

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

IGNITION SIGNAL

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT

1.

Disconnect ECM harness connector.

2.

Check the continuity between ECM harness connector and ignition coil harness connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.

8.

CHECK IGNITION COIL WITH POWER TRANSISTOR

Check the ignition coil with power transistor. Refer to

EC-416, "Component Inspection (Ignition Coil with

Power Transistor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to

EM-53, "Exploded View"

.

Component Inspection (Ignition Coil with Power Transistor)

INFOID:0000000006547246

1.

CHECK IGNITION COIL WITH POWER TRANSISTOR-I

1.

Turn ignition switch OFF.

2.

Disconnect ignition coil harness connector.

3.

Check resistance between ignition coil terminals as per the following.

Is the inspection result normal?

YES

>> GO TO 2.

+

−

Continuity

Ignition coil

Cylinder

Connector

Terminal

1

F33

2

Ground

Existed

2

F34

2

3

F35

2

4

F36

2

+

−

Continuity

Ignition coil

ECM

Cylinder

Connector

Terminal

Connector

Terminal

1

F33

1

F26

82

Existed

2

F34

1

86

3

F35

1

90

4

F36

1

94

Ignition coil with power transistor

Resistance [

Ω

at 25

°

C (77

°

F)]

+

−

Terminal

1

2

Except 0 or

∞

3

Except 0

2

3