Infiniti I30 (A33). Manual — part 291
SEF058Y
DTC Confirmation Procedure
NHEC0537
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
TESTING CONDITION:
Always perform the test at a temperature above 5°C (41°F).
WITH CONSULT-II
NHEC0537S01
1)
Turn ignition switch “OFF” and wait at least 10 seconds.
2)
Turn ignition switch “ON”.
3)
Select “DATA MONITOR” mode with CONSULT-II and wait at
least 5 seconds.
If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-481.
WITH GST
NHEC0537S02
Follow the procedure “WITH CONSULT-II” above.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1165 SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH
DTC Confirmation Procedure
EC-479
Wiring Diagram
NHEC0538
MEC750C
SEF628XB
DTC P1165 SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH
Wiring Diagram
EC-480
Diagnostic Procedure
NHEC0539
1
CHECK HOSES
1. Turn ignition switch “OFF”.
2. Check hose for clogging or improper connection.
SEF109L
OK or NG
OK
©
GO TO 2.
NG
©
Repair or reconnect the hose.
2
CHECK SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH GROUND CIRCUIT FOR OPEN
AND SHORT
1. Disconnect swirl control valve control vacuum check switch harness connector.
SEF273X
2. Check harness continuity between terminal 2 and ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 4.
NG
©
GO TO 3.
3
DETECT MALFUNCTIONING PART
Check the following.
I
Joint connector-18
I
Harness for open or short between swirl control valve control vacuum check switch and engine ground
©
Repair open circuit, short to ground or short to power in harness connectors.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1165 SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH
Diagnostic Procedure
EC-481
4
CHECK SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH INPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 55 and swirl control valve control vacuum check switch terminal 1.
Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 5.
NG
©
Repair open circuit, short to ground or short to power in harness connectors.
5
CHECK SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH
1. Turn ignition switch “OFF”.
2. Disconnect vacuum hose connected to swirl control valve control vacuum check switch.
3. Attach vacuum pump to swirl control valve control vacuum check switch.
4. Turn ignition switch “ON”.
5. Check voltage between ECM terminal 55 and ground under the following conditions.
SEF709X
OK or NG
OK
©
GO TO 6.
NG
©
Replace swirl control valve control vacuum check switch.
DTC P1165 SWIRL CONTROL VALVE CONTROL VACUUM CHECK SWITCH
Diagnostic Procedure (Cont’d)
EC-482
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