NISSAN TIIDA 2007 Service Repair Manual

EC-272
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1572 ASCD BRAKE SWITCH
NO-1 >> M/T models: GO TO 8.
2.CHECK OVERALL FUNCTION-II
With CONSULT-III
Select “BRAKE SW2” and check indication in “DATA MONITOR” mode.
Without CONSULT-III
Check the voltage between ECM harness connector terminal as follows.
Is the inspection result normal?
YES >> GO TO 21.
NO >> GO TO 16.
3.CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ASCD brake switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E7, M69 (LHD models)
 Harness connectors M25, M201 (RHD models)
 10A fuse (No.2)
 Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM ASCD harness connector.
3. Check the continuity between ASCD brake switch harness connector and ECM harness connector.
Monitor item Condition Indication
BRAKE SW2 Brake pedalSlightly depressed ON
Fully released OFF
(+) (−)
Condition Voltage
Connector Terminal Connector Terminal
E1699
(Stop lamp switch signal)E108 108 Brake pedalSlightly depressed Battery voltage
Fully released Approx. 0V
ASCD brake switch
Ground Voltage
Connector Terminal
E36 (LHD models)
M205 (RHD models)1 Ground Battery voltage
ASCD brake switch ECM
Continuity
Connector Terminal Connector Terminal
E36 (LHD models)
M205 (RHD models)2 E16 100 Existed

P1572 ASCD BRAKE SWITCH
EC-273
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
 Junction block connector M25, M201, M69, E7 (RHD models)
 Harness for open or short between ASCD brake switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK ASCD BRAKE SWITCH
Refer to EC-275, "
Component Inspection (ASCD Brake Switch)".
Is the inspection result normal?
YES >> GO TO 21.
NO >> Replace ASCD brake switch.
8.CHECK ASCD BRAKE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD clutch switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ASCD clutch switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 13.
NO >> GO TO 9.
9.CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ASCD brake switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 11.
NO >> GO TO 10.
10.DETECT MALFUNCTIONING PART
Check the following.
 Junction block connector E7, M69 (LHD models)
 Junction block connector M25, M201 (RHD models)
 10A fuse (No.2)
 Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
ASCD Clutch switch
Ground Condition Voltage (V)
Connector Terminal
E35 (LHD models)
M206 (RHD models)1 Ground Brake pedalSlightly depressed Approx. 0
Fully released Battery voltage
ASCD brake switch
Ground Voltage
Connector Terminal
E36 (LHD models)
M205 (RHD models)1 Ground Battery voltage

EC-274
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1572 ASCD BRAKE SWITCH
11 .CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between ASCD brake switch harness connector and ASCD clutch switch harness
connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 12.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
12.CHECK ASCD BRAKE SWITCH
Refer to EC-275, "
Component Inspection (ASCD Brake Switch)".
Is the inspection result normal?
YES >> GO TO 21.
NO >> Replace ASCD brake switch.
13.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between ECM harness connector and ASCD clutch switch harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 15.
NO >> GO TO 14.
14.DETECT MALFUNCTIONING PART
Check the following.
 Junction block connector M25, M201, M69, E7 (RHD models)
 Harness for open or short between ASCD brake switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
15.CHECK ASCD CLUTCH SWITCH
Refer to EC-276, "
Component Inspection (ASCD Clutch Switch)".
Is the inspection result normal?
YES >> GO TO 21.
NO >> Replace ASCD clutch switch.
16.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.
ASCD brake switch ASCD clutch switch
Continuity
Connector Terminal Connector Terminal
E36 (LHD models)
M205 (RHD models)2E35 (LHD models)
M206 (RHD models)1 Existed
ECM ASCD clutch switch
Continuity
Connector Terminal Connector Terminal
E16 100E35 (LHD models)
M206 (RHD models)2Existed

P1572 ASCD BRAKE SWITCH
EC-275
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Is the inspection result normal?
YES >> GO TO 18.
NO >> GO TO 17.
17.DETECT MALFUNCTIONING PART
Check the following.
 10A fuse (No.7)
 Junction block connector E7, M69 (LHD models)
 Junction block connector M25, M201 (RHD models)
 Harness for open or short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
18.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 20.
NG >> GO TO 19.
19.DETECT MALFUNCTIONING PART
Check the following.
 Junction block connector M25, M201, 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.
20.CHECK STOP LAMP SWITCH
Refer to EC-276, "
Component Inspection (Stop Lamp Switch)".
Is the inspection result normal?
YES >> GO TO 21.
NO >> Replace stop lamp switch.
21.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component Inspection (ASCD Brake Switch)INFOID:0000000001671187
1.CHECK ASCD BRAKE SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Check the continuity between ASCD brake switch terminals under the following conditions.
Stop lamp switch
Ground Voltage
Connector Terminal
E13 (LHD models))
M203 (RHD models)1 Ground Battery voltage
ECM Stop lamp switch
Continuity
Connector Terminal Connector Terminal
E16 99E13 (LHD models)
M203 (RHD models)2 Existed

EC-276
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1572 ASCD BRAKE SWITCH
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK ASCD BRAKE SWITCH-II
1. Adjust ASCD brake switch installation. Refer to BR-6, "
Inspection and Adjustment".
2. Check the continuity between ASCD brake switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace ASCD brake switch.
Component Inspection (ASCD Clutch Switch)INFOID:0000000001671188
1.CHECK ASCD CLUTCH SWITCH-I
1. Turn ignition switch OFF.
2. Disconnect ASCD clutch switch harness connector.
3. Check the continuity between ASCD clutch switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK ASCD CLUTCH SWITCH-II
1. Adjust ASCD clutch switch installation. Refer to CL-5, "
On-vehicle Inspection and Adjustment".
2. Check the continuity between ASCD clutch switch terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace ASCD clutch switch.
Component Inspection (Stop Lamp Switch)INFOID:0000000001671189
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.
Terminals Condition Continuity
1 and 2 Brake pedalFully released Existed
Slightly depressed Not existed
Terminals Condition Continuity
1 and 2 Brake pedalFully released Existed
Slightly depressed Not existed
Terminals Condition Continuity
1 and 2 Clutch pedalFully released Existed
Slightly depressed Not existed
Terminals Condition Continuity
1 and 2 Clutch pedalFully released Existed
Slightly depressed Not existed

P1572 ASCD BRAKE SWITCH
EC-277
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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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 BR-6, "
Inspection and Adjustment".
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
Terminals Condition Continuity
1 and 2 Brake pedalFully released Not existed
Slightly depressed Existed

EC-278
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1574 ASCD VEHICLE SPEED SENSOR
P1574 ASCD VEHICLE SPEED SENSOR
DescriptionINFOID:0000000001671052
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-61, "
System Diagram" for ASCD functions.
DTC LogicINFOID:0000000001671053
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-128, "
DTC Logic".
If DTC P1574 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer
to EC-129, "
DTC Logic".
If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500. Refer
to EC-213, "
DTC Logic"
If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer
to EC-215, "
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-278, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001671054
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-32, "
OBD Diagnostic Trouble Code (DTC)".
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

P1574 ASCD VEHICLE SPEED SENSOR
EC-279
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NO >> Perform trouble shooting relevant to DTC indicated.
2.CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Refer to BRC-25, "
CONSULT-III Function (ABS)" (with ABS) or BRC-105, "CONSULT-III Function (ABS)" (with
ABS/TCS/ESP).
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace.
3.CHECK COMBINATION METER
Check combination meter function.
Refer to MWI-22, "
CONSULT-III Function (METER/M&A)".
>> INSPECTION END

EC-280
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1706 PNP SWITCH
P1706 PNP SWITCH
DescriptionINFOID:0000000001671055
When the shift lever position is P or N (A/T), Neutral (M/T) position, park/neutral position (PNP) switch is ON.
ECM detects the position because the continuity of the line (the ON signal) exists.
DTC LogicINFOID:0000000001671056
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-281, "
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
P or N position (A/T)
Neutral position (M/T)ON
Except above position OFF
ENG SPEED A/T: 1,650 - 6,375 rpm
M/T: 1,925 - 6,375 rpm
COOLAN TEMP/S More than 70°C (158°F)

P1706 PNP SWITCH
EC-281
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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Is 1st trip DTC detected?
YES >> Go to EC-281, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-281, "
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-281, "
Diagnosis Procedure".
Component Function CheckINFOID:0000000001671057
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-281, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001671058
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
B/FUEL SCHDL A/T: 3.5 - 31.8 msec
M/T: 2.5 - 31.8 msec
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 leverP or N (A/T)
Neutral (M/T)Approx. 0V
Except above Battery voltage
PNP switch
Ground Voltage
Connector Terminal
F24 (M/T) 2
Ground Battery voltage
F25 (A/T) 1