Page 2289 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-940
< COMPONENT DIAGNOSIS >[MR18DE]
P1574 ASCD VEHICLE SPEED SENSOR
P1574 ASCD VEHICLE SPEED SENSOR
DescriptionINFOID:0000000001161919
The ECM receives two vehicle speed sensor signals via CAN comm NISSAN TIIDA 2007 Service Repair Manual EC-940
< COMPONENT DIAGNOSIS >[MR18DE]
P1574 ASCD VEHICLE SPEED SENSOR
P1574 ASCD VEHICLE SPEED SENSOR
DescriptionINFOID:0000000001161919
The ECM receives two vehicle speed sensor signals via CAN comm](/manual-img/5/57395/w960_57395-2288.png)
EC-940
< COMPONENT DIAGNOSIS >[MR18DE]
P1574 ASCD VEHICLE SPEED SENSOR
P1574 ASCD VEHICLE SPEED SENSOR
DescriptionINFOID:0000000001161919
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-728, "
System Description" for ASCD functions.
DTC LogicINFOID:0000000001161920
DTC DETECTION LOGIC
NOTE:
If DTC P1574 is displayed with DTC U1000, U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-793, "
DTC Logic".
If DTC P1574 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer
to EC-794, "
DTC Logic".
If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500. Refer
to EC-878, "
DTC Logic"
If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer
to EC-880, "
DTC Logic"
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> 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 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.
3. Check DTC.
Is DTC detected?
YES >> Go to EC-940, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001161921
1.CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Refer to BRC-105, "
CONSULT-III Function (ABS)".
Is the inspection result normal?
YES >> GO TO 2.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
P1574ASCD vehicle speed
sensorECM detects a difference between two vehicle
speed signals is out of the specified range. Harness or connectors
(The CAN communication line is open or
shorted.)
(Combination meter circuit is open or shorted.)
Combination meter
ABS actuator and electric unit (control unit)
Wheel sensor
ECM
Page 2290 of 5883
P1574 ASCD VEHICLE SPEED SENSOR
EC-941
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
NO >> Repair or replace.
2.CHECK COMBINATION METER
Check combination meter function.
Refer to MWI-22, "
CONSULT-III Function (METER/M&A)".
>> INSPECTION END
Page 2291 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-942
< COMPONENT DIAGNOSIS >[MR18DE]
P1706 PNP SWITCH
P1706 PNP SWITCH
DescriptionINFOID:0000000001161922
When the shift lever position is Neutral position, park/neutral position (PNP) switch is ON. NISSAN TIIDA 2007 Service Repair Manual EC-942
< COMPONENT DIAGNOSIS >[MR18DE]
P1706 PNP SWITCH
P1706 PNP SWITCH
DescriptionINFOID:0000000001161922
When the shift lever position is Neutral position, park/neutral position (PNP) switch is ON.](/manual-img/5/57395/w960_57395-2290.png)
EC-942
< COMPONENT DIAGNOSIS >[MR18DE]
P1706 PNP SWITCH
P1706 PNP SWITCH
DescriptionINFOID:0000000001161922
When the shift lever position is Neutral position, park/neutral position (PNP) switch is ON.
ECM detects the position because the continuity of the line (the ON signal) exists.
DTC LogicINFOID:0000000001161923
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 5.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 3.
3.CHECK PNP SWITCH FUNCTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CONSULT-III. Then check the “P/N POSI SW” sig-
nal under the following conditions.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Go to EC-943, "
Diagnosis Procedure".
4.PERFORM DTC CONFIRMATION PROCEDURE
1. Select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to normal operating temperature.
3. Maintain the following conditions for at least 50 consecutive seconds.
CAUTION:
Always drive vehicle at a safe speed.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1706Park/neutral position
switchThe signal of the park/neutral position (PNP)
switch is not changed in the process of engine
starting and driving. Harness or connectors
[The park/neutral position (PNP) switch
circuit is open or shorted.]
Park/neutral position (PNP) switch
Position (Shift lever) Known-good signal
Neutral position ON
Except above position OFF
ENG SPEED 1,500 - 6,375 rpm
COOLAN TEMP/S More than 70°C (158°F)
B/FUEL SCHDL 3.5 - 31.8 msec
Page 2292 of 5883
![NISSAN TIIDA 2007 Service Repair Manual P1706 PNP SWITCH
EC-943
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-943, "Diagnosis Procedure".
NO >> INSPECTION EN NISSAN TIIDA 2007 Service Repair Manual P1706 PNP SWITCH
EC-943
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-943, "Diagnosis Procedure".
NO >> INSPECTION EN](/manual-img/5/57395/w960_57395-2291.png)
P1706 PNP SWITCH
EC-943
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-943, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-943, "
Component Function Check".
NOTE:
Use component function check the overall function of the park/neutral position (PNP) switch circuit. During this
check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-943, "
Diagnosis Procedure".
Component Function CheckINFOID:0000000001161924
1.PERFORM COMPONENT FUNCTION CHECK
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminal as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-943, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161925
1.CHECK PNP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Park/neutral position (PNP) switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between PNP switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.DTECTED MALFUNCTIONING PART
Check the following.
Harness connectors E8, F8
Harness for open or short between PNP switch and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
VHCL SPEED SE More than 64 km/h (40 mph)
Shift lever Suitable position
(+) (–)
Condition Voltage
Connector Terminal Connector Terminal
F1169
(PNP switch signal)E16 108 Shift leverNeutral Approx. 0V
Except above Battery voltage
PNP switch
Ground Voltage
Connector Terminal
F24 2 Ground Battery voltage
Page 2293 of 5883
EC-944
< COMPONENT DIAGNOSIS >[MR18DE]
P1706 PNP SWITCH
2. Disconnect ECM harness connector.
3. Check the continuity between PNP switch harness connector and ECM harness connector.
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 or short to ground or short to power in harness or connectors.
4.CHECK PNP SWITCH
Refer to TM-665, "
PARK/NEUTRAL POSITION (PNP) SWITCH : Component Inspection"
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace PNP switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
PNP switch ECM
Continuity
Connector Terminal Connector Terminal
F24 3 F11 69 Existed
Page 2294 of 5883
![NISSAN TIIDA 2007 Service Repair Manual P1805 BRAKE SWITCH
EC-945
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
P1805 BRAKE SWITCH
DescriptionINFOID:0000000001161929
Brake switch signal is applied to the ECM through the st NISSAN TIIDA 2007 Service Repair Manual P1805 BRAKE SWITCH
EC-945
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
P1805 BRAKE SWITCH
DescriptionINFOID:0000000001161929
Brake switch signal is applied to the ECM through the st](/manual-img/5/57395/w960_57395-2293.png)
P1805 BRAKE SWITCH
EC-945
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
P1805 BRAKE SWITCH
DescriptionINFOID:0000000001161929
Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed.
This signal is used mainly to decrease the engine speed when the vehicle is driving.
DTC LogicINFOID:0000000001161930
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the DTC with CONSULT-III.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-945, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001161931
1.CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Check the stop lamp when depressing and releasing the brake pedal.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2.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.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805 Brake switchA brake switch signal is not sent to ECM for ex-
tremely long time while the vehicle is driving. Harness or connectors
(Stop lamp switch circuit is open or short-
ed.)
Stop lamp switch
Brake pedal Stop lamp
Fully released Not illuminated
Slightly depressed Illuminated
Sto p l am p s w it ch
Ground Voltage
Connector Terminal
E13 (LHD models)
1 Ground Battery voltage
M203 (RHD models)
Page 2295 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-946
< COMPONENT DIAGNOSIS >[MR18DE]
P1805 BRAKE SWITCH
Check the following.
Harness connectors M69, E7 (LHD models)
Harness connectors M201, M25 (RHD models)
Harness for open or short between NISSAN TIIDA 2007 Service Repair Manual EC-946
< COMPONENT DIAGNOSIS >[MR18DE]
P1805 BRAKE SWITCH
Check the following.
Harness connectors M69, E7 (LHD models)
Harness connectors M201, M25 (RHD models)
Harness for open or short between](/manual-img/5/57395/w960_57395-2294.png)
EC-946
< COMPONENT DIAGNOSIS >[MR18DE]
P1805 BRAKE SWITCH
Check the following.
Harness connectors M69, E7 (LHD models)
Harness connectors M201, M25 (RHD models)
Harness for open or short between stop lamp switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check the continuity between ECM harness connector and stop lamp switch harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M201, M25, M69, E7 (RHD models)
Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK STOP LAMP SWITCH
Refer to EC-946, "
Component Inspection (Stop Lamp Switch)".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace stop lamp switch.
7.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component Inspection (Stop Lamp Switch)INFOID:0000000001161932
1.CHECK STOP LAMP SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check the continuity between stop lamp switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK STOP LAMP SWITCH-II
1. Adjust stop lamp switch installation. Refer to EC-946, "
Component Inspection (Stop Lamp Switch)".
ECM Stop lamp switch
Continuity
Connector Terminal Connector Terminal
E16 99E13 (LHD models)
2 Existed
M203 (RHD models)
Terminals Condition Continuity
1 and 2 Brake pedalFully released Not existed
Slightly depressed Existed
Page 2296 of 5883
P1805 BRAKE SWITCH
EC-947
< COMPONENT DIAGNOSIS >[MR18DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
N
P O
2. Check the continuity between stop lamp switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace stop lamp switch.
Terminals Condition Continuity
1 and 2 Brake pedalFully released Not existed
Slightly depressed Existed