Nissan Qashqai J11. Manual — part 447
ECK-348
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P1655 ENGINE RESTART BYPASS RELAY
P1655 ENGINE RESTART BYPASS RELAY
DTC Logic
INFOID:0000000010290005
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 10 seconds or more to start this procedure.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
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.
6.
Repeat Step 3 and Step 4 twice.
Without CONSULT
1.
Activate the stop/start system. Stop the engine. Restart the engine. Refer to
.
2.
Repeat Step 1 four times.
CAUTION:
Always drive vehicle at a safe speed.
Is DTC detected?
YES
>> Proceed to
ECK-348, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010290006
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check that the following fuse is not fusing.
Is the fuse fusing?
YES
>> Replace the fuse after repairing the applicable circuit.
NO
>> GO TO 2.
2.
CHECK ENGINE RESTART BYPASS CONTROL RELAY POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Remove engine restart bypass control relay.
3.
Turn ignition switch ON.
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1655
ENGINE RESTART BY-
PASS RELAY
(Engine restart bypass re-
lay)
At an engine restart by stop/start system,
the voltage drop allowance is less than Ap-
prox. 0.1 V when the engine restart bypass
relay becomes closed from the open sta-
tus, and this condition is repeated three
times in a row.
• Harness or connectors
(Engine restart bypass relay circuit is open
or shorted.)
(Engine restart bypass control relay circuit
is open or shorted.)
• Engine restart bypass relay
• Engine restart bypass control relay
Location
Fuse No.
Capacity
Fuse block (J/B)
7
20 A
P1655 ENGINE RESTART BYPASS RELAY
ECK-349
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
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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-350, "Component Inspection (Engine Restart
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace error-detected parts.
6.
CHECK ENGINE RESTART BYPASS RELAY
Check the engine restart bypass relay. Refer to
ECK-350, "Component Inspection (Engine Restart Bypass
.
Is the inspection result normal?
+
−
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
ECK-350
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P1655 ENGINE RESTART BYPASS RELAY
YES
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
NO
>> Replace error-detected parts.
Component Inspection (Engine Restart Bypass Control Relay)
INFOID:0000000010290007
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:0000000010290008
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.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace engine restart bypass relay. Refer to
ECK-403, "Removal and Installation"
.
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
P1656 ENGINE RESTART BYPASS RELAY
ECK-351
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
ECK
N
P
O
P1656 ENGINE RESTART BYPASS RELAY
DTC Logic
INFOID:0000000010290009
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 10 seconds or more to start this procedure.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
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.
6.
Repeat Step 3 and Step 4 twice.
Without CONSULT
1.
Activate the stop/start system. Stop the engine. Restart the engine. Refer to
.
2.
Repeat Step 1 four times.
CAUTION:
Always drive vehicle at a safe speed.
Is DTC detected?
YES
>> Proceed to
ECK-352, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010516037
1.
CHECK FUSE
1.
Turn ignition switch OFF.
2.
Check that the following fuse is not fusing.
Is the fuse fusing?
YES
>> Replace the fuse after repairing the applicable circuit.
NO
>> GO TO 2.
2.
CHECK ENGINE RESTART BYPASS CONTROL RELAY POWER SUPPLY
DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1656
—
(—)
• 1.DEF: INVALID
SOURCE COMPUTER
MULTIPLEX SIGNALS
• 2.DEF: INVALID
SOURCE COMPUTER
MULTIPLEX SIGNALS
• 3.DEF: IMPLAUSIBLE
SIGNAL
At an engine restart by stop/start system,
the voltage right after the starter motor ac-
tivation is less than Approx. 8 V.
• Harness and connectors
(Engine restart bypass relay circuit is open
or shorted.)
(Engine restart bypass control relay circuit
is open or shorted.)
• Engine restart bypass relay
• Engine restart bypass control relay
Location
Fuse No.
Capacity
Fuse block (J/B)
7
20 A
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