ignition NISSAN TEANA 2014 Service Manual

EC-442
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P1564 ASCD STEERING SWITCH
P1564 ASCD STEERING SWITCH
DTC LogicINFOID:0000000009462375
DTC DETECTION LOGIC
NOTE:
If DTC P1564 is displayed with DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B, perform
the trouble diagnosis for DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B. Refer to EC-105,
"DTC Index".
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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Wait at least 10 seconds.
3. Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.
4. Press CANCEL switch for at least 10 seconds , then release it and wait at least 10 seconds.
5. Press ACCEL/RES switch for at least 10 seconds , then release it and wait at least 10 seconds.
6. Press COAST/SET switch for at least 10 seconds , then release it and wait at least 10 seconds.
7. Check DTC.
Is DTC detected?
YES >> Proceed to EC-442, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462376
1.CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT
1. Turn ignition switch ON.
2. Select “CANCEL SW”, “RESUME/ACC SW” and “S ET SW” in “DATA MONITOR” mode of “ENGINE”
using CONSULT.
3. Check each item indication as per the following conditions.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P1564 ASCD SW
(ASCD switch) • An excessively high voltage signal from the
ASCD steering switch is sent to ECM.
• ECM detects that input signal from the
ASCD steering switch is out of the specified
range.
• ECM detects that the ASCD steering switch
is stuck ON. • Harness or connectors
(ASCD steering switch circuit is open
or shorted.)
• ASCD steering switch
•ECM
Monitor item Condition Indication
MAIN SW MAIN switch Pressed ON
Released OFF
CANCEL SW CANCEL switch Pressed ON
Released OFF
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P1564 ASCD STEERING SWITCHEC-443
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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Without CONSULT
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> GO TO 2.
2.CHECK ASCD STEERING SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect combination switch (spiral cable) harness connector.
4. Check the continuity between combination s witch (spiral cable) and ECM harness connector.
*1: Except for California
*2: For California
5. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT
1. Check the continuity between ECM harness connector and combination switch.
RESUME/ACC
SW ACCEL/RES switch Pressed ON
Released OFF
SET SW COAST/SET switch Pressed ON
Released OFF
Monitor item Condition Indication
ECM
ConditionVoltag e
(Approx.)
Connector +-
Te r m i n a l
E10
*1
E31*211 0 111 MAIN switch: Pressed 0 V
CANCEL switch: Pressed 1 V
COAST/SET switch: Pressed 2 V
ACCEL/RES switch: Pressed 3 V
All ASCD steering switches: Released 4 V
+ −
Continuity
Combination switch
(Spiral cable) ECM
Connector Terminal Connector Terminal
M30 32 E10
*1
E31*2111 E x i s t e d
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P1572 ASCD BRAKE SWITCHEC-445
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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P1572 ASCD BRAKE SWITCH
DTC LogicINFOID:0000000009462378
DTC DETECTION LOGIC
NOTE:
• If DTC P1572 is displayed with DTC P0603, P0604, P0605, P0606, P 0607, P060A, and P060B, first per-
form the trouble diagnosis for DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B. Refer to
EC-402, "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.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.
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 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A
1. Start engine.
2. Press MAIN switch and make sure that CRUISE indicator is displayed in combination meter.
3. Drive the vehicle for at least 5 consecut ive seconds as per 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.
4. Check DTC.
Is DTC detected?
YES >> Proceed to EC-452, "Diagnosis Procedure".
NO >> GO TO 3.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P1572 ASCD BRAKE SW
(ASCD BRAKE SW) 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
(Stop lamp switch circuit is shorted.)
(Brake pedal position switch circuit is
shorted.)
•Stop lamp switch
• Brake pedal position switch
•Stop lamp relay
• Incorrect stop lamp switch installation
• Incorrect brake pedal position switch in- stallation
•ECM
B)
Brake pedal position switch signal is not
sent to ECM for extremely long time while
the vehicle is driving.
Vehicle speed More than 30 km/h (19 mph)
Selector lever Suitable position
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EC-446
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P1572 ASCD BRAKE SWITCH
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B
1. Drive the vehicle for at least 5 consecut ive seconds as per 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 DTC.
Is DTC detected?
YES >> Proceed to EC-452, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462379
1.CHECK OVERALL FUNCTION-1
With CONSULT
1. Turn ignition switch ON.
2. Select “BRAKE SW1” in “DATA MONI TOR” mode of “ENGINE” using CONSULT.
3. Check “BRAKE SW1” indication as per the following conditions.
Without CONSULT
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals as per the following.
*1: Except for California
*2: For California
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK OVERALL FUNCTION-2
With CONSULT
Select “BRAKE SW2” and check indication as per the following conditions.
Vehicle speed 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 vehi-
cle speed.
Monitor item Condition Indication
BRAKE SW1 Brake pedal Slightly depressed OFF
Fully released ON
ECM ConditionVo l ta g e
(Approx.)
Connector +–
Te r m i n a l
E10
*1
E31*2116 128 Brake pedal Slightly depressed 0 V
Fully released Battery voltage
Monitor item Condition Indication
BRAKE SW2 Brake pedal Slightly depressed ON
Fully released OFF
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P1572 ASCD BRAKE SWITCHEC-447
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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Without CONSULT
Check the voltage between ECM harness connector te rminals as per the following conditions.
*1: Except for California
*2: For California
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 position switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Perform the trouble diagnosis for power supply circuit.
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.
*1: Except for California
*2: For California
4. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK BRAKE PEDAL POSITION SWITCH
Check the brake pedal position switch. Refer to EC-449, "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"
.
ECM
ConditionVol tag e
(Approx.)
Connector +–
Te r m i n a l
E10
*1
E31*2115 128 Brake pedal Slightly depressed Battery voltage
Fully released 0 V
+ −Vo l ta g e
Brake pedal position switch
Connector Terminal E51 1 Ground Battery voltage
+ −
Continuity
Brake pedal position switch ECM
Connector Terminal Connector Terminal
E51 2 E10
*1
E31*211 6 E x i s t e d
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EC-448
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P1572 ASCD BRAKE SWITCH
6.CHECK STOP LAMP SWIT
CH 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.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Perform the trouble diagnosis for power supply circuit.
7.CHECK STOP LAMP SWITCH GROUND CIRCUIT
1. Disconnect stop lamp relay harness connector.
2. Check the continuity between stop lamp switch harness connector and stop lamp relay harness connec-
tor.
3. Also check harness for short to ground and to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace error-detected parts.
8.CHECK STOP LAMP SWITCH
Check the stop lamp switch. Refer to EC-450, "Component Inspection (Stop Lamp Switch)"
.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace stop lamp switch. Refer to BR-18, "Exploded View"
.
9.CHECK STOP LAMP RELAY CONTROL CIRCUIT
1. Check the continuity between stop lamp relay harness connector and ground.
2. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 10.
NO >> Repair or replace error-detected parts.
10.CHECK STOP LAMP SWITCH SIGNAL POWER SUPPLY
Check the voltage between stop lamp relay harness connector and ground.
+
−Vo l ta g e
Stop lamp switch
Connector Terminal E38 1 Ground Battery voltage
+ −
Continuity
Stop lamp switch Stop lamp relay
Connector Terminal Connector Terminal E38 2 E57 2 Existed
+ −Continuity
Sto p l am p rela y
Connector Terminal E57 1 Ground Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

P1572 ASCD BRAKE SWITCHEC-449
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
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Is the inspection result normal?
YES >> GO TO 11.
NO >> Perform the trouble diagnosis for power supply circuit.
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.
*1: Except for California
*2: For California
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-450, "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:0000000009462380
1.CHECK BRAKE PEDAL POSITION SWITCH-1
1. Turn ignition switch OFF.
2. Disconnect brake pedal position harness connector.
3. Check the continuity between brake pedal position switch terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK BRAKE PEDAL POSITION SWITCH-2
1. Adjust brake pedal position switch installation. Refer to BR-13, "Inspection and Adjustment"
.
2. Check the continuity between brake pedal position switch terminals as per the following conditions.
+
−Voltag e
Stop lamp relay
Connector Terminal E57 5 Ground Battery voltage
+ −
Continuity
St op la mp rel ay EC M
Connector Terminal Connector Terminal
E57 3 E10
*1
E31*211 5 E x i s t e d
Brake pedal position switch
Condition Continuity
+ −
Te r m i n a l s
1 2 Brake pedal Fully released Existed
Slightly de-
pressed Not existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-450
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P1572 ASCD BRAKE SWITCH
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:0000000009462381
1.CHECK STOP LAMP SWITCH-1
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the continuity between stop lamp swit ch terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH-2
1. Adjust stop lamp switch installation. Refer to BR-13, "Inspection and Adjustment"
.
2. Check the continuity between stop lamp swit ch terminals as per the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace stop lamp switch. Refer to BR-18, "Exploded View"
.
Component Inspection (Stop Lamp Relay)INFOID:0000000009462382
1.CHECK STOP LAMP RELAY
1. Turn ignition switch OFF.
2. Remove stop lamp relay.
Brake pedal position switch
Condition Continuity
+ −
Te r m i n a l s
1 2 Brake pedal Fully released Existed
Slightly de-
pressed Not existed
Sto p l am p s w it ch
Condition Continuity
+ −
Te r m i n a l s
1 2 Brake pedal Fully released Not existed
Slightly de-
pressed Existed
Sto p l am p s w it ch
Condition Continuity
+ −
Te r m i n a l s
1 2 Brake pedal Fully released Not existed
Slightly de-
pressed Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-452
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P1574 ASCD VEHICL
E SPEED SENSOR
P1574 ASCD VEHICLE SPEED SENSOR
DescriptionINFOID:0000000009462383
The ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from combina-
tion meter, and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD
control. Refer to EC-63, "AUTOMATIC SPEED CONTROL DE VICE (ASCD) : System Description"
for ASCD
functions.
DTC LogicINFOID:0000000009462384
DTC DETECTION LOGIC
NOTE:
• If DTC P1574 is displayed with DTC U1001, first pe rform the trouble diagnosis for DTC U1001. Refer
to EC-208, "DTC Logic"
.
• If DTC P1574 is displayed with DTC P0500, first pe rform the trouble diagnosis for DTC P0500. Refer
to EC-380, "DTC Logic"
•If DTC P1574 is displayed with DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B, first per-
form the trouble diagnosis fo r DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B. Refer to
EC-404, "DTC Logic"
.
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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine.
2. Drive the vehicle at more than 40 km/h (25 MPH). 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.
3. Check DTC.
Is DTC detected?
YES >> Proceed to EC-452, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462385
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-43, "CONSULT Function"
.
Is DTC detected?
NO >> GO TO 2.
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P1574 ASCD VHL SPD SEN
(ASCD VHL SPD SEN) ECM detects a difference between two
vehicle speed signals is out of the speci-
fied range. • Harness or connectors
(CAN communication line is open or shorted.)
• ABS actuator and electric unit (control unit)
•TCM
•ECM
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EC-454
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
P1715 INPUT SPEED SENSOR
P1715 INPUT SPEED SENSOR
DescriptionINFOID:0000000009462386
ECM receives input speed sensor signal from TCM thr
ough CAN communication line. ECM uses this signal for
engine control.
DTC LogicINFOID:0000000009462387
DTC DETECTION LOGIC
NOTE:
• If DTC P1715 is displayed with DTC UXXXX, first perform the tr ouble diagnosis for DTC UXXXX.
• If DTC P1715 is displayed with DTC P0335, first pe rform the trouble diagnosis for DTC P0335. Refer
to EC-326, "DTC Logic"
.
• If DTC P1715 is displayed with DTC P0340, first pe rform the trouble diagnosis for DTC P0340. Refer
to EC-329, "DTC Logic"
.
• If DTC P1715 is displayed with DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B, first per-
form the trouble diagnosis fo r DTC P0603, P0604, P0605, P0606, P0607, P060A, and P060B. Refer to
EC-404, "DTC Logic"
.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing 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 drive the vehicle at more t han 50 km/h (31 MPH) for at least 5 seconds.
CAUTION:
Always drive vehicle at a safe speed.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-454, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462388
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-43, "CONSULT Function"
.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble shooting relevant to DTC indicated.
2.REPLACE TCM
DTC No. CONSULT screen terms
(Trouble diagnosis content) DTC detecting condition Possible cause
P1715 IN PULY SPEED
(IN PULY SPEED) Input speed sensor signal is different from
the theoretical value calculated by ECM
from output speed sensor signal and en-
gine rpm signal. • Harness or connectors
(The CAN communication line is open or
shorted)
• Harness or connectors
(Input speed sensor circuit is open or
shorted)
•TCM
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM