light NISSAN TEANA 2014 Service Manual

IDLE AIR VOLUME LEARNINGEC-683
< BASIC INSPECTION > [VQ35DE]
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IDLE AIR VOLUME LEARNING
DescriptionINFOID:0000000009462557
Idle Air Volume Learning is a function of ECM to learn
the idle air volume that keeps engine idle speed within
the specific range. It must be performed under the following conditions:
• Each time the electric throttle c ontrol actuator or ECM is replaced.
• Idle speed or ignition timing is out of the specification.
Work ProcedureINFOID:0000000009462558
1.PRECONDITIONING
Check that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
• Battery voltage: More than 12.9 V (At idle)
• Engine coolant temperature: 70 - 100 °C (158 - 212 °F)
• Selector lever position: P or N
• Electric load switch: OFF
(Air conditioner, head lamp, rear window defogger)
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is
started the head lamp will not illuminate.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- With CONSULT: Drive vehicle until “ATF TEMP SEN” in “DATA MONITOR” mode of “CVT” system indicates
less than 0.9 V.
- Without CONSULT: Drive vehicle for 10 minutes.
Will CONSULT be used?
YES >> GO TO 2.
NO >> GO TO 3.
2.PERFORM IDLE AIR VOLUME LEARNING
With CONSULT
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-681, "Work Procedure"
.
2. Perform Throttle Valve Closed Position Learning. Refer to EC-682, "Work Procedure"
.
3. Start engine and warm it up to normal operating temperature.
4. Select “IDLE AIR VOL LEA RN” in “WORK SUPPORT” mode.
5. Touch “START” and wait 20 seconds.
Is
“CMPLT” displayed on CONSULT screen?
YES >> GO TO 4.
NO >> GO TO 5.
3.PERFORM IDLE AIR VOLUME LEARNING
Without CONSULT
NOTE:
• It is better to count the time accurately with a clock.
• It is impossible to switch the di agnostic mode when an accelerator pedal position sensor circuit has
a malfunction.
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-681, "Work Procedure"
.
2. Perform Throttle Valve Closed Position Learning. Refer to EC-682, "Work Procedure"
.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quickly 5 times within 5 seconds.
- Fully depress the accelerator pedal.
- Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal for approx. 20 seconds until the MIL stops blinking
and turns ON.
8. Fully release the accelerator pedal within 3 seconds after the MIL turns ON.
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P0101 MAF SENSOREC-727
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0101 MAF SENSOR
DTC LogicINFOID:0000000009462592
DTC DETECTION LOGIC
NOTE:
If DTC P0101 is displayed with other DTC, fi rst perform the trouble diagnosis for other DTC.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following proce-
dure before conducti ng the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Drive the vehicle for at least 5 seconds under the following conditions:
CAUTION:
Always drive vehicle at safe speed.
NOTE:
• The gear must be fixed while driving the vehicle.
• Keep the accelerator pedal as steady as possible during cruising.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-727, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462593
1.CHECK INTAKE SYSTEM
Check the following for connection.
• Air duct
• Vacuum hoses
• Intake air passage between air duct and intake manifold
Is the inspection result normal?
YES >> GO TO 2.
NO >> Reconnect the parts.
2.CHECK MASS AIR FLOW (MAF) SENSOR POWER SUPPLY
DTC No. Trouble diagnosis
(Trouble diagnosis content) DTC detecting condition Possible cause
P0101 MAF SEN/CIRCUIT-B1
[Mass air flow (MAF) sensor cir-
cuit range/performance] • A high voltage from the sensor is sent to
ECM under light load driving condition.
• A low voltage from the sensor is sent to ECM under heavy load driving condition. • Harness or connectors
(The sensor circuit is open or short-
ed.)
• Intake air leaks
• MAF sensor
• EVAP control system pressure sensor
• Intake air temperature sensor
Selector lever Suitable position
Vehicle speed 40 km/h (25 MPH) or more
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P0441 EVAP CONTROL SYSTEMEC-831
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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Without CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Stop engine.
3. Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP ser-
vice port and install vacuum gauge. For the location of EVAP service port, refer to EC-580, "EVAPORA-
TIVE EMISSION SYSTEM : System Description".
4. Start engine and let it idle. Do not depress accelerator pedal even slightly.
5. Check vacuum gauge indication before 60 seconds pass after starting engine.
6. Rev engine up to 2,000 rpm after 100 seconds pass after starting engine.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 4.
4.CHECK EVAP PURGE LINE
1. Turn ignition switch OFF.
2. Check EVAP purge line for improper connection or disconnection. Refer to EC-580, "EVAPORATIVE EMISSION SYSTEM : System Description"
.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair EVAP purge line.
5.CHECK EVAP PURGE HOSE AND PURGE PORT
1. Disconnect purge hoses connect ed to EVAP service port A and
EVAP canister purge volume control solenoid valve B.
2. Blow air into each hose and EVAP purge port C.
3. Check that air flows freely.
Is the inspection result normal?
YES-1 >> With CONSULT: GO TO 6.
YES-2 >> Without CONSULT: GO TO 7.
NO >> Repair or clean hoses and/or purge port.
6.CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
With CONSULT
1. Start engine.
2. Perform “PURG VOL C/V” in “ACTIVE TEST” mode with CONSULT. Check that engine speed varies
according to the valve opening.
Does engine speed vary according to the valve opening?
Vacuum should not exist.
Vacuum should exist.
SEF367U
SEF368U
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P0451 EVAP CONTROL SYSTEM PRESSURE SENSOREC-847
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P0451 EVAP CONTROL SYST
EM PRESSURE SENSOR
DTC LogicINFOID:0000000009462695
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
Never remove fuel filler cap du ring DTC confirmation procedure.
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
With CONSULT>>GO TO 2.
Without CONSULT>>GO TO 5.
2.PERFORM DTC CONFIRMATION PROCEDURE-1
With CONSULT
1. Start engine and let it idle for least 40 seconds. NOTE:
Do not depress accelerator pedal even slightly.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-848, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
1. Select “EVAP DIAG READY” in “DATA MONITOR” mode of “ENGINE”.
2. Let it idle until “OFF” of “EVAP DIAG READY” changes to “ON”. NOTE:
It will take at most 2 hours until “OFF” of “EVAP DIAG READY” changes to “ON”.
3. Turn ignition switch OFF and wait at least 90 minutes. NOTE:
Never turn ignition swit ch ON during 90 minutes.
4. Turn ignition switch ON.
5. Select “EVAP LEAK DIAG” in “DATA MONITOR” mode of “ENGINE”.
6. Check that “EVAP LEAK DIAG” indication.
Which is displayed on CONSULT?
CMPLT >> GO TO 4.
YET >> 1. Perform DTC CONF IRMATION PROCEDURE again.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0451 EVAP control system
pressure sensor perfor-
mance ECM detects a sloshing signal from the EVAP
control system pressure sensor • Harness or connectors
(EVAP control system pressure sensor
circuit is shorted.)
[CKP sensor (POS) circuit is shorted.]
(APP sensor 2 circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
• EVAP control system pressure sensor
• Crankshaft position sensor (POS)
• Accelerator pedal position sensor
• Refrigerant pressure sensor
• Sensor power supply 2 circuit
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EC-848
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
2. GO TO 1.
4.PERFORM DTC CONFIRMATION PROCEDURE-3
With CONSULT
Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-848, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM DTC CONFIRMATION PROCEDURE-4
With GST
1. Start engine and let it idle for least 40 seconds. NOTE:
Do not depress accelerator pedal even slightly.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-848, "Diagnosis Procedure".
NO >> GO TO 6.
6.PERFORM DTC CONFIRMATION PROCEDURE-5
With GST
1. Let it idle for at least 2 hours.
2. Turn ignition switch OFF and wait at least 90 minutes. NOTE:
Never turn ignition swit ch ON during 90 minutes.
3. Turn ignition switch ON.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-848, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462696
1.CHECK EVAP CONTROL SYSTEM PRESS URE SENSOR CONNECTOR FOR WATER
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check that water is not inside connectors.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK EVAP CONTROL SYSTEM PR ESSURE SENSOR POWER SUPPLY
1. Turn ignition switch ON.
2. Check the voltage between EVAP control syst em pressure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Check sensor power supply 2 circuit. Refer to EC-981, "Diagnosis Procedure"
.
Is the inspection result normal?
YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
EVAP control system pressure sensor Ground Voltage (V)
Connector Terminal
B41 3 Ground Approx. 5
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P1572 ASCD BRAKE SWITCHEC-911
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P1572 ASCD BRAKE SWITCH
DescriptionINFOID:0000000009462775
When the brake pedal is depressed, brake pedal position switch is turned OFF and stop lamp switch is turned
ON. ECM detects the state of the brake pedal by this input of two kinds (ON/OFF signal).
Refer to EC-574, "AUTOMATIC SPEED CONTROL DE VICE (ASCD) : System Description"
for the ASCD
function.
DTC LogicINFOID:0000000009462776
DTC DETECTION LOGIC
NOTE:
• If DTC P1572 is displayed with DT C P0605, first perform the trouble diagnosis for DTC P0605. Refer
to EC-883, "DTC Logic"
.
• This self-diagnosis has the one trip detection logic. When malfunction A is detected, DTC is not
stored in ECM memory. And in that case, 1st trip DTC and 1st trip freeze frame data are displayed.
1st trip DTC is erased when igniti on switch OFF. And even when ma lfunction A is detected in two
consecutive trips, DTC is not stored in ECM memory.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT?
Do you have CONSULT?
YES >> GO TO 2.
NO >> GO TO 5.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
NOTE:
Procedure for malfunction B is not described here. It take s extremely long time to complete procedure for mal-
function B. By performing procedure for malfunction A, the incident that causes malfunction B can be
detected.
>> GO TO 3.
3.PERFORM DTC CONFIRMATION PR OCEDURE FOR MALFUNCTION A-I
1. Start engine (VDC switch OFF).
2. Select “DATA MONITOR” mode with CONSULT.
3. Press MAIN switch and make sure that CRUISE lamp lights up.
4. Drive the vehicle for at least 5 consecutive seconds under the following conditions. CAUTION:
Always drive vehicle at a safe speed.
NOTE:
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
P1572 ASCD brake switch A)
When the vehicle speed is above 30 km/h
(19 MPH), ON signals from the stop lamp
switch and the brake pedal position switch
are sent to the ECM at the same time. • Harness or connectors
(The stop lamp switch circuit is shorted.)
• Harness or connectors (The brake pedal position switch circuit is
shorted.)
• Stop lamp switch
• Brake pedal position switch
• Incorrect stop lamp switch installation
• Incorrect brake pedal position switch installa- tion
•ECM
B)
Brake pedal position switch signal is not
sent to ECM for extremely long time while
the vehicle is driving.
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EC-912
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1572 ASCD BRAKE SWITCH
This procedure may be conducted with the drive wheel
s 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.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-913, "Diagnosis Procedure".
NO >> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE A-II
1. Drive the vehicle for at least 5 consecutive seconds under the following conditions. CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheel s 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.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-913, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-912, "Component Function Check"
.
NOTE:
Use component function check to check the overall function of brake pedal position switch. During this check,
a DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-913, "Diagnosis Procedure"
.
Component Function CheckINFOID:0000000009462777
1.PERFORM COMPONENT FUNCTION CHECK
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connectors.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
VHCL SPEED SE More than 30 km/h (19 mph)
Selector lever Suitable position
VHCL SPEED SE More than 30 km/h (19 mph)
Selector lever Suitable position
Driving location Depress the brake pedal for more than
five seconds so as not to come off from
the above-mentioned vehicle speed.
ECM
Condition Voltage
Con-
nector +–
Terminal Terminal
E32 126 128 Brake pedal Slightly
depressed Approx. 0 V
Fully re-
leased Battery voltage
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P1572 ASCD BRAKE SWITCHEC-913
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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2.PERFORM COMPONENT FUNCTION CHECK-II
Check the voltage between ECM harness connectors.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-913, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009462778
1.CHECK OVERALL FUNCTION-I
With CONSULT
1. Turn ignition switch ON.
2. Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT.
3. Check “BRAKE SW1” indication under the following conditions.
Without CONSULT
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connectors.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK OVERALL FUNCTION-II
With CONSULT
Check “BRAKE SW2” indication in “DATA MONITOR” mode.
Without CONSULT
Check the voltage between ECM harness connectors.
ECM
Condition Voltage
Con-
nector +–
Terminal Terminal
E32 122 128 Brake pedal Slightly
depressed Battery voltage
Fully re-
leased Approx. 0 V
Monitor item Condition Indication
BRAKE SW1 Brake pedal Slightly depressed OFF
Fully released ON
ECM Condition Voltage
Con-
nector +–
Terminal Terminal
E32 126 128 Brake pedal Slightly
depressed Approx. 0 V
Fully re-
leased Battery voltage
Monitor item Condition Indication
BRAKE SW2 Brake pedal Slightly depressed ON
Fully released OFF
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EC-914
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1572 ASCD BRAKE SWITCH
Is the inspection result normal?
YES >> Check intermittent incident. Refer to
GI-43, "Intermittent Incident".
NO >> GO TO 6.
3.CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect brake pedal position switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between brake pedal pos ition switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between brake pedal posit ion switch harness connector and ECM harness connec-
tor.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK BRAKE PEDAL POSITION SWITCH
Check brake pedal position switch. Refer to EC-916, "Component Inspection (Brake Pedal Position Switch)"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace brake pedal position switch. Refer to BR-18, "Exploded View"
.
6.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the voltage between stop lamp switch harness connector and ground.
ECM
Condition Voltage
Con-
nector +–
Terminal Terminal
E32 122 128 Brake pedal Slightly
depressed Battery voltage
Fully re-
leased Approx. 0 V
Brake pedal position switch
Ground Voltage
Connector Terminal
E51 1 Ground Battery voltage
Brake pedal position switch ECM Continuity
Connector Terminal Connector Terminal
E51 2 E32 126 Existed
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EC-916
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1572 ASCD BRAKE SWITCH
11 .CHECK STOP LAMP SWITCH SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check the continuity between stop lamp relay harness connector and ECM harness connector.
3. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 12.
NO >> Repair or replace error-detected parts
12.CHECK STOP LAMP RELAY
Check the stop lamp relay. Refer to EC-917, "Component Inspection (Stop Lamp Relay)"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace stop lamp relay.
Component Inspection (Brake Pedal Position Switch)INFOID:0000000009462779
1.CHECK BRAKE PEDAL POSITION SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect brake pedal position switch harness connector.
3. Check the continuity between brake pedal positi on switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK BRAKE PEDAL POSITION SWITCH-II
1. Adjust brake pedal position switch installation. Refer to BR-13, "Inspection and Adjustment"
.
2. Check the continuity between brake pedal positi on switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace brake pedal position switch. Refer to BR-18, "Exploded View"
.
Component Inspection (Stop Lamp Switch)INFOID:0000000009462780
1.CHECK STOP LAMP SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check harness continuity between stop lamp switch terminals under the following conditions.
+ −
Continuity
Sto p l am p rela y EC M
Connector Terminal Connector Terminal E57 3 E32 122 Existed
Terminals Condition Continuity
1 and 2 Brake pedal Fully released Existed
Slightly depressed Not existed
Terminals Condition Continuity
1 and 2 Brake pedal Fully released Existed
Slightly depressed Not existed
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