Nissan Qashqai J11. Manual - part 446

ECK-344

< DTC/CIRCUIT DIAGNOSIS >

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P1643 THERMOPLUNGER CONTROL UNIT

Component Inspection (Thermoplunger)

INFOID:0000000010514977

1.

CHECK THERMOPLUNGER

1.

Turn ignition switch OFF.

2.

Disconnect thermoplunger harness connector.

3.

Check the resistance between thermoplunger terminal and ground.

is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace thermoplunger.

+

-

Resistance

Thermoplunger

Terminal

1

Ground

608 

±

 61 m

Ω

P1650 STARTER MOTOR RELAY 2

ECK-345

< DTC/CIRCUIT DIAGNOSIS >

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P1650 STARTER MOTOR RELAY 2

DTC Logic

INFOID:0000000010289998

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If the other DTC Confirmation Procedure is performed right before this procedure, the ignition switch must be
turned OFF and wait for 1 minute or more to start this procedure.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-1

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON and wait at least 30 seconds

3.

Turn ignition switch OFF, wait at least 10 seconds and then turn ON.

4.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

ECK-345, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE-2

With CONSULT

1.

Start the engine and warm it up to normal operating temperature.

2.

Press start/stop OFF switch and check that the switch indicator is ON.

3.

Select “AUTO STOP START” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.

4.

Touch “START” and operate stop/start system. (engine stop.)

5.

Touch “CANCEL” and restart the engine.

Without CONSULT

Activate stop/start system. Refer to 

ECK-39, "STOP/START SYSTEM : System Description"

.

CAUTION:

Always drive vehicle at a safe speed.

Is stop/start system activated normal?

YES

>> INSPECTION END

NO

>> Proceed to 

ECK-345, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010289999

1.

CHECK ENGINE RESTART RELAY POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Remove engine restart relay.

3.

Check the voltage between engine restart relay harness connector and ground.

DTC

CONSULT screen terms

(Trouble diagnosis con-

tent)

DTC detecting condition

Possible cause

P1650

CNT UNIT -> HEAT 
ELEM CONN
( Control unit -> heat ele-
ment connection)

A

Engine restart relay is stuck ON.

• Starter control relay
• Engine restart relay

B

Engine restart relay is stuck OFF.

• Harness and connectors

(Between engine restart relay and starter motor 
harness is shorted to ground.)
(Between battery and engine restart relay har-
ness is open or shorted to ground.)

• IPDM  E/R
• Engine restart relay

ECK-346

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P1650 STARTER MOTOR RELAY 2

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK ENGINE RESTART RELAY POWER SUPPLY CIRCUIT

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between engine restart relay harness connector and IPDM E/R harness connector.

3.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Check IPDM E/R.

NO

>> Repair or replace error-detected parts.

3.

CHECK ENGINE RESTART RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect starter relay.

3.

Check the continuity between engine restart relay harness connector and starter relay harness connector.

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Perform the trouble diagnosis for starter relay routing circuit.

4.

CHECK ENGINE RESTART RELAY CONTROL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between engine restart relay harness connector and ECM harness connector.

4.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK ENGINE RESTART RELAY OUTPUT SIGNAL CIRCUIT

1.

Check the continuity between engine restart relay harness connector and IPDM E/R harness connector.

+

–

Voltage

Engine restart relay

Connector

terminal

F163

2

Ground

Battery voltage

+

–

Continuity

Engine restart relay

IPDM E/R

Connector

terminal

Connector

terminal

F163

2

E39

44

Existed

+

–

Continuity

Starter relay

Engine restart relay

Connector

terminal

Connector

terminal

F162

3

F163

5

Existed

+

–

Continuity

Engine restart relay

ECM

Connector

terminal

Connector

terminal

F163

1

F80

48

Existed

P1650 STARTER MOTOR RELAY 2

ECK-347

< DTC/CIRCUIT DIAGNOSIS >

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2.

Disconnect starter motor terminal.

3.

Check the continuity between engine restart relay and starter motor.

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK ENGINE RESTART RELAY

Check engine restart relay. Refer to 

ECK-347, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace engine restart relay.

Component Inspection

INFOID:0000000010290000

1.

CHECK ENGINE RESTART RELAY

1.

Turn ignition switch OFF.

2.

Remove engine restart relay.

3.

Check the continuity between engine restart relay terminals as
per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace engine restart relay.

+

–

Continuity

Engine restart relay

IPDM E/R

Connector

terminal

Connector

terminal

F163

3

F88

65

Existed

+

–

Continuity

Engine restart relay

Starter motor

Connector

terminal

Connector

terminal

F163

3

F104

1

Existed

Engine restart re-

lay

Condition

Continuity

+

–

terminal

3

5

12V direct current supply between 
terminals 1 and 2

Existed

No supply

Not existed

PIIA2636J