Infiniti Q45. Manual — part 382
DTC P0011, P0021 IVT CONTROL
EC-167
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EC
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure
NBS001RW
1.
CHECK OIL PRESSURE WARNING LAMP
1.
Start engine.
2.
Check oil pressure warning lamp and confirm it is not illumi-
nated.
OK or NG
OK
>> GO TO 2.
KG
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
11
W/B
Intake valve timing control
solenoid valve (bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000rpm
7 - 12V
53
W
Intake valve timing control
position sensor (bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
0 - 1.0V
[Engine is running]
●
Engine speed: 2,000 rpm
0 - 1.0V
111
W/B
ECM relay
(Self shut-off)
[Engine is running]
[Ignition switch: OFF]
●
For a few seconds after turning ignition
switch OFF
0 - 1.5V
[Ignition switch: OFF]
●
More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
119
120
R
R
Power supply for ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
PBIB1790E
PBIB2046E
PBIA8559J
EC-168
DTC P0011, P0021 IVT CONTROL
2.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten three ground screws on the body.
Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace ground connections.
3.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR POWER SUPPLY CIRCUIT
1.
Disconnect intake valve timing control position sensor harness connector.
2.
Turn ignition switch ON.
3.
Check voltage between intake valve timing control position sen-
sor terminal 3 and ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M135, F105
●
Harness for open or short between intake valve timing control position sensor and ECM
●
Harness for open or short between intake valve timing control position sensor and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2417E
Voltage: Battery voltage
PBIB2422E
SEF509Y
DTC P0011, P0021 IVT CONTROL
EC-169
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EC
5.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1.
Turn ignition switch OFF.
2.
Check harness continuity between intake valve timing control position sensor terminal 1 and ground.
Refer to Wiring Diagram.
3.
Also check harness for short to power.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors F32, E32
●
Harness for open or short between intake valve timing control position sensor and ground
>> Repair open circuit or short to power in harness or connectors.
7.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN
AND SHORT
1.
Disconnect ECM harness connector.
2.
Check harness continuity between the following;
ECM terminal 72 and intake valve timing control position sensor (bank 1) terminal 2 or
ECM terminal 53 and intake valve timing control position sensor (bank 2) terminal 2.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 8.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR
Refer to
EC-171, "Component Inspection"
OK or NG
OK
>> GO TO 9.
NG
>> Replace intake valve timing control position sensor.
Continuity should exist.
Continuity should exist.
EC-170
DTC P0011, P0021 IVT CONTROL
9.
CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1.
Reconnect ECM harness connector.
2.
Disconnect intake valve timing control solenoid valve harness connector.
3.
Turn ignition switch ON.
4.
Check voltage between intake valve timing control solenoid
valve terminal 2 and ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 11.
NG
>> GO TO 10.
10.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M135, F105
●
Harness for open or short between intake valve timing control solenoid valve and ECM relay.
>> Repair open circuit or short to ground or short to power in harness or connectors.
11.
CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1.
Disconnect ECM harness connector.
2.
Check harness continuity between the following;
ECM terminal 10 and intake valve timing control solenoid valve (bank 1) terminal 1 or
ECM terminal 11 and intake valve timing control solenoid valve (bank 2) terminal 1.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 12.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
12.
CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to
EC-171, "Component Inspection"
OK or NG
OK
>> GO TO 13.
NG
>> Replace intake valve timing control solenoid valve.
Voltage: Battery voltage
PBIB2422E
PBIB0192E
Continuity should exist.
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