Nissan Qashqai J11. Manual - part 448

ECK-352

< DTC/CIRCUIT DIAGNOSIS >

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P1656 ENGINE RESTART BYPASS RELAY

1.

Turn ignition switch OFF.

2.

Remove engine restart bypass control relay.

3.

Turn ignition switch ON.

4.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform the trouble diagnosis for power supply circuit.

3.

CHECK ENGINE RESTART BYPASS CONTROL RELAY CIRCUIT-1

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

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

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK ENGINE RESTART BYPASS CONTROL RELAY CIRCUIT-2

1.

Disconnect engine restart bypass relay harness connector.

2.

Check the continuity between engine restart bypass control relay harness connector and engine restart
bypass relay 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 ENGINE RESTART BYPASS CONTROL RELAY

Check the engine restart bypass control relay. Refer to 

ECK-354, "Component Inspection (Engine Restart

Bypass Control Relay)"

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace error-detected parts.

6.

CHECK ENGINE RESTART BYPASS RELAY

+

−

Voltage

Engine restart bypass control relay

Connector

Terminal

F98

1

Ground

Battery voltage

5

+

−

Continuity

Engine restart bypass con-

trol relay

ECM

Connector

Terminal

Connector

Terminal

F98

2

F80

55

Existed

+

−

Continuity

Engine restart bypass con-

trol relay

Engine restart bypass relay

Connector

Terminal

Connector

Terminal

F98

3

F146

1

Existed

P1656 ENGINE RESTART BYPASS RELAY

ECK-353

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Check the engine restart bypass relay. Refer to 

ECK-354, "Component Inspection (Engine Restart Bypass

Relay)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-41, "Intermittent Incident"

.

NO

>> Replace error-detected parts.

Component Inspection (Engine Restart Bypass Control Relay)

INFOID:0000000010516038

1.

CHECK ENGINE RESTART BYPASS CONTROL RELAY

1.

Turn ignition switch OFF.

2.

Remove engine restart bypass control relay.

3.

Check continuity between engine restart bypass control relay
terminals as per the following condition. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace engine restart bypass control relay.

Component Inspection (Engine Restart Bypass Relay)

INFOID:0000000010516039

1.

CHECK ENGINE RESTART BYPASS RELAY-1

1.

Turn ignition switch OFF.

2.

Disconnect battery cable from negative terminal.

3.

Remove engine restart bypass relay. Refer to 

ECK-403, "Removal and Installation"

.

4.

Check the continuity between engine restart bypass relay termi-
nal and engine restart bypass relay body.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace engine restart bypass relay. Refer to 

ECK-403, "Removal and Installation"

.

2.

CHECK ENGINE RESTART BYPASS RELAY-2

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

Engine restart bypass control relay

Condition

Continuity

+

−

Terminal

3

5

12 V direct current supply 
between terminals 1 and 2

Existed

No current supply

Not existed

JSBIA0671ZZ

+

−

Continuity

Engine restart bypass 

relay

Terminal

1

Engine restart bypass 

relay body

Existed

JSBIA1735ZZ

Engine restart bypass relay

Condition

Resistance

(Approx.)

+

−

Terminal

2

3

12 V direct current sup-
ply between terminal 1 
and body

10 m

Ω

No current supply

0 

Ω

JSBIA1736ZZ

ECK-354

< DTC/CIRCUIT DIAGNOSIS >

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P1656 ENGINE RESTART BYPASS RELAY

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace engine restart bypass relay. Refer to 

ECK-403, "Removal and Installation"

.

P1675 ENGINE COOLANT TEMPERATURE

ECK-355

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P1675 ENGINE COOLANT TEMPERATURE

DTC Logic

INFOID:0000000010516041

DTC DETECTION LOGIC

If the cooling fan or other component in the cooling system malfunctions, engine coolant temperature will rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.

CAUTION:

When a malfunction is indicated, be sure to replace the coolant. Also, replace the engine oil. 
1.

Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio.

2.

After refilling coolant, run engine to ensure that no water-flow noise is emitted.

DTC CONFIRMATION PROCEDURE

1.

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to 

ECK-356, "Component Function Check"

.

NOTE:
Use component function check to check the overall function of the cooling fan. During this check, a DTC might
not be confirmed.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

ECK-357, "Diagnosis Procedure"

.

Component Function Check

INFOID:0000000010516085

1.

PERFORM COMPONENT FUNCTION CHECK-1

WARNING:

Never remove the reservoir tank cap when the engine is hot. Serious burns could be caused by high
pressure fluid escaping from the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
Is the coolant level in the reservoir tank and/or radiator below the
proper range?

YES

>> Proceed to 

ECK-357, "Diagnosis Procedure"

.

NO

>> GO TO 2.

2.

PERFORM COMPONENT FUNCTION CHECK-2

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1675

—
(—)

When engine coolant temperature is too high.

• Cooling fan
• Radiator  hose
• Radiator
• Radiator  cap
• Water pump
• Thermostat
• Engine coolant bypass 

valve

• Engine coolant temper-

ature sensor

SEF621W