Nissan Qashqai J11. Manual — part 446
ECK-344
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
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
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