Nissan X-Trail 32. Instruction — part 1008
P1655 ENGINE RESTART BYPASS RELAY
EC-1161
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
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P1655 ENGINE RESTART BYPASS RELAY
DTC Description
INFOID:0000000010935865
DTC DETECTION LOGIC
POSSIBLE CAUSE
• 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
FAIL-SAFE
STOP/START SYSTEM
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
TEM : System Description (M/T models)"
EC-856, "STOP/START SYSTEM : System
(CVT models).
2.
Repeat Step 1 four times.
CAUTION:
Always drive vehicle at a safe speed.
Is DTC detected?
YES
>> Proceed to
EC-1162, "Diagnosis Procedure"
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P1655
ENGINE RESTART BYPASS RELAY
(Engine restart bypass relay)
At an engine restart by stop/start system, the voltage drop allowance is less
thanApprox. 0.1 V when the engine restart bypass relay becomes closed
from the open status, and this condition is repeated three times in a row.
Stop/start system operating condition in fail safe mode
Idling or driving the vehicle
Stop/start system operating
Stop
During cranking
(Restart)
—
—
Prohibit the stop/start system operation
from the next time
EC-1162
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P1655 ENGINE RESTART BYPASS RELAY
Diagnosis Procedure
INFOID:0000000010935866
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.
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.
Location
Fuse No.
Capacity
Fuse block (J/B)
27
15 A
+
−
Voltage
Engine restart bypass control relay
Connector
Terminal
F134
2
Ground
Battery voltage
3
+
−
Continuity
Engine restart bypass con-
trol relay
ECM
Connector
Terminal
Connector
Terminal
F134
1
F118
151
Existed
P1655 ENGINE RESTART BYPASS RELAY
EC-1163
< DTC/CIRCUIT DIAGNOSIS >
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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
EC-1163, "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
EC-1163, "Component Inspection (Engine Restart Bypass
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace error-detected parts.
Component Inspection (Engine Restart Bypass Control Relay)
INFOID:0000000010935867
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:0000000010935868
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
+
−
Continuity
Engine restart bypass con-
trol relay
Engine restart bypass relay
Connector
Terminal
Connector
Terminal
F134
5
F139
1
Existed
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
EC-1164
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P1655 ENGINE RESTART BYPASS RELAY
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
EC-1230, "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
EC-1230, "Removal and Installation"
+
−
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
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