Nissan Titan A60. Manual — part 421
EC-350
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
P0850 PNP SWITCH
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M31, E152
• Harness for open or short between ECM and combination meter
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK PNP INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-III
1. Disconnect TCM harness connector.
2. Check harness continuity between TCM terminal 8 and A/T assembly terminal 9.
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 INTERMITTENT INCIDENT
GI-36, "How to Check Terminal"
and
GI-39, "Intermittent Incident"
OK or NG
OK
>> GO TO 9.
NG
>> Repair or replace.
9.
REPLACE COMBINATION METER FUNCTION
MWI-28, "CONSULT-III Function (METER/M&A)"
.
>> INSPECTION END
Continuity should exist.
P1140, P1145 IVT CONTROL POSITION SENSOR
EC-351
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
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EC
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P1140, P1145 IVT CONTROL POSITION SENSOR
Component Description
INFOID:0000000006158801
Intake valve timing control position sensors are located in the front of
cylinder heads in both bank 1 and bank 2.
This sensor uses a Hall IC.
The cam position is determined by the intake camshaft sprocket con-
cave (in four places). The ECM provides feedback to the intake valve
timing control for appropriate target valve open-close timing accord-
ing to drive conditions based on detected cam position.
On Board Diagnosis Logic
INFOID:0000000006158802
DTC Confirmation Procedure
INFOID:0000000006158803
1. If DTC Confirmation Procedure has been previously conducted, always perform the following before con-
ducting the next step.
a. Turn ignition switch OFF and wait at least 10 seconds.
b. Turn ignition switch ON.
c. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Select “DATA MONITOR” mode with CONSULT-III.
4. Maintain the following conditions for at least 10 seconds.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to
Diagnosis Procedure
INFOID:0000000006158804
1.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
SEF359Z
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1140
1140
(Bank 1)
Intake valve timing control
position sensor circuit
An excessively high or low voltage from the
sensor is sent to ECM.
• Harness or connectors
(Intake valve timing control position
sensor circuit is open or shorted)
• Intake valve timing control position
sensor
• Crankshaft position sensor (POS)
• Camshaft position sensor (PHASE)
• Accumulation of debris to the signal
pick-up portion of the camshaft sprock-
et
P1145
1145
(Bank 2)
ENG SPEED
More than idle speed
Selector lever
P or N position
EC-352
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
P1140, P1145 IVT CONTROL POSITION SENSOR
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
2.
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-III or tester.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E2, F32
• Harness for open or short between intake valve timing control position sensor and IPDM E/R
• Harness for open or short between intake valve timing control position sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
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.
BBIA0354E
1.
Intake valve timing control position
sensor (bank 2)
2.
Intake valve timing control solenoid
valve (bank 2)
3.
Drive belt
4.
Radiator hose
5.
Intake valve timing control solenoid
valve (bank 1)
6.
Intake valve timing control position
sensor (bank 1)
Voltage: Battery voltage
BBIA0771E
PBIB2613E
P1140, P1145 IVT CONTROL POSITION SENSOR
EC-353
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
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EC
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3. Also check harness for short to power.
OK or NG
OK
>> GO TO 6.
NG
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E2, F32
• 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.
6.
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 7.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR
EC-354, "Component Inspection"
OK or NG
OK
>> GO TO 8.
NG
>> Replace malfunctioning intake valve timing control position sensor. Refer to
.
8.
CHECK CRANKSHAFT POSITION SENSOR (POS)
EC-259, "Component Inspection"
OK or NG
OK
>> GO TO 9.
NG
>> Replace crankshaft position sensor (POS).
9.
CHECK CAMSHAFT POSITION SENSOR (PHASE)
EC-263, "Component Inspection"
OK or NG
OK
>> GO TO 10.
NG
>> Replace camshaft position sensor (PHASE). Refer to
10.
CHECK CAMSHAFT SPROCKET
Check accumulation of debris to the signal pick-up portion of the camshaft sprocket. Refer to
OK or NG
OK
>> GO TO 11.
NG
>> Remove debris and clean the signal pick-up cutout of camshaft sprocket.
11.
CHECK INTERMITTENT INCIDENT
GI-36, "How to Check Terminal"
GI-39, "Intermittent Incident"
Continuity should exist.
Continuity should exist.
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