Infiniti I30 (A33). Manual — part 213
SEF058Y
PROCEDURE FOR MALFUNCTION A
NHEC0066S01
With CONSULT-II
NHEC0066S0101
1)
Turn ignition switch “ON”.
2)
Select “DATA MONITOR” mode with CONSULT-II.
3)
Wait at least 5 seconds.
4)
If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-169.
With GST
NHEC0066S0102
Follow the procedure “With CONSULT-II” above.
SEF176Y
PROCEDURE FOR MALFUNCTION B
NHEC0066S02
CAUTION:
Always drive vehicle at a safe speed.
TESTING CONDITION:
This test may be conducted with the drive wheels lifted in the
shop or by driving the vehicle. If a road test is expected to be
easier, it is unnecessary to lift the vehicle.
With CONSULT-II
NHEC0066S0201
1)
Wait until engine coolant temperature is less than 90°C
(194°F).
a)
Turn ignition switch “ON”.
b)
Select “DATA MONITOR” mode with CONSULT-II.
c)
Check the engine coolant temperature.
d)
If the engine coolant temperature is not less than 90°C
(194°F), turn ignition switch “OFF” and cool down engine.
I
Perform the following steps before engine coolant temperature
is above 90°C (194°F).
2)
Turn ignition switch “ON”.
3)
Select “DATA MONITOR” mode with CONSULT-II.
4)
Start engine.
5)
Hold vehicle speed at more than 70 km/h (43 MPH) for 100
consecutive seconds.
6)
If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-169.
With GST
NHEC0066S0202
Follow the procedure “With CONSULT-II” above.
GI
MA
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LC
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AT
AX
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RS
BT
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SC
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IDX
DTC P0110 INTAKE AIR TEMPERATURE SENSOR
DTC Confirmation Procedure (Cont’d)
EC-167
Wiring Diagram
NHEC0067
MEC801C
DTC P0110 INTAKE AIR TEMPERATURE SENSOR
Wiring Diagram
EC-168
Diagnostic Procedure
NHEC0068
1
CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect intake air temperature sensor harness connector.
SEF258X
3. Turn ignition switch “ON”.
4. Check voltage between terminal 1 and ground.
SEF301X
OK or NG
OK
©
GO TO 3.
NG
©
GO TO 2.
2
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors E8, F17
I
Harness for open or short between ECM and intake air temperature sensor
©
Repair harness or connectors.
3
CHECK INTAKE AIR TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Check harness continuity between sensor terminal 2 and engine ground.
Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to power.
OK or NG
OK
©
GO TO 5.
NG
©
GO TO 4.
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BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0110 INTAKE AIR TEMPERATURE SENSOR
Diagnostic Procedure
EC-169
4
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors E8, F17
I
Harness for open or short between ECM and intake air temperature sensor
I
Harness for open or short between TCM (Transmission Control Module) and intake air temperature sensor
©
Repair open circuit or short to power in harness or connectors.
5
CHECK INTAKE AIR TEMPERATURE SENSOR
Check resistance between intake air temperature sensor terminals 1 and 2 as shown in the figure.
SEF302X
OK or NG
OK
©
GO TO 6.
NG
©
Replace intake air temperature sensor.
6
CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-144.
©
INSPECTION END
DTC P0110 INTAKE AIR TEMPERATURE SENSOR
Diagnostic Procedure (Cont’d)
EC-170
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