Nissan Qashqai J11. Manual — part 448
ECK-352
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
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
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
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
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Check the engine restart bypass relay. Refer to
ECK-354, "Component Inspection (Engine Restart Bypass
.
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 >
[K9K]
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
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
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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
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