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![NISSAN TIIDA 2007 Service Repair Manual EC-964
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ASCD BRAKE SWITCH
ASCD BRAKE SWITCH
DescriptionINFOID:0000000001161953
When the brake pedal is depressed, ASCD brake switch is turned OFF and stop lamp switch is NISSAN TIIDA 2007 Service Repair Manual EC-964
< COMPONENT DIAGNOSIS >[MR18DE]
ASCD BRAKE SWITCH
ASCD BRAKE SWITCH
DescriptionINFOID:0000000001161953
When the brake pedal is depressed, ASCD brake switch is turned OFF and stop lamp switch is](/manual-img/5/57395/w960_57395-2312.png)
EC-964
< COMPONENT DIAGNOSIS >[MR18DE]
ASCD BRAKE SWITCH
ASCD BRAKE SWITCH
DescriptionINFOID:0000000001161953
When the brake pedal is depressed, ASCD brake 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-728, "
System Description" for the ASCD function.
Component Function CheckINFOID:0000000001161954
1.CHECK FOR ASCD BRAKE SWITCH FUNCTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT-III.
3. Check “BRAKE SW1” indication under the following conditions.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Go to EC-964, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001611130
1.CHECK ASCD CLUCH SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD cluch switch harness connector.
3. Turn ignition switch ON.
4. Check the continuity between ASCD cluch switch harness connector and ground.
5. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 2.
2.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.
Monitor item Condition Indication
BRAKE SW1 Brake pedal and clutch pedalSlightly depressed OFF
Fully released ON
ECM
Ground Condition Voltage
Connector Terminal
E16100
(ASCD brake switch signal)Ground Brake pedal and clutch pedalSlightly depressed Approx. 0V
Fully released Battery voltage
ASCD cluch switch
Ground Condition Voltage (V)
Connector Terminal
E35 (LHD models)
M206 (RHD models)1 Ground Brake pedalSlightly depressed Approx. 0
Fully released Battery voltage
Page 2314 of 5883
![NISSAN TIIDA 2007 Service Repair Manual ASCD BRAKE SWITCH
EC-965
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Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the followin NISSAN TIIDA 2007 Service Repair Manual ASCD BRAKE SWITCH
EC-965
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Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the followin](/manual-img/5/57395/w960_57395-2313.png)
ASCD BRAKE SWITCH
EC-965
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Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
Harness connector M69, E7 (LHD models)
Harness 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.
4.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 5.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK ASCD BRAKE SWITCH
Refer to EC-966, "
Component Inspection (ASCD Brake Switch)".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace ASCD brake switch.
6.CHECK ASCD CLUCH SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector
3. Check the continuity between ASCD cluch 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 7.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK ASCD CLUTCH SWITCH
Refer to EC-966, "
Component Inspection (ASCD Clutch Switch)".
ASCD brake switch
Ground Voltage
Connector Terminal
E36 (LHD models)
M205 (RHD models)1 Ground Battery voltage
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
ASCD cluch switch ECM
Continuity
Connector Terminal Connector Terminal
E35 (LHD models)
M206 (RHD models)2 E16 100 Existed
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![NISSAN TIIDA 2007 Service Repair Manual EC-966
< COMPONENT DIAGNOSIS >[MR18DE]
ASCD BRAKE SWITCH
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace ASCD clutch switch.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent NISSAN TIIDA 2007 Service Repair Manual EC-966
< COMPONENT DIAGNOSIS >[MR18DE]
ASCD BRAKE SWITCH
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace ASCD clutch switch.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent](/manual-img/5/57395/w960_57395-2314.png)
EC-966
< COMPONENT DIAGNOSIS >[MR18DE]
ASCD BRAKE SWITCH
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace ASCD clutch switch.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component Inspection (ASCD Brake Switch)INFOID:0000000001161956
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.
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:0000000001161957
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.
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
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ASCD BRAKE SWITCH
EC-967
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Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace ASCD clutch switch.
Terminals Condition Continuity
1 and 2 Clutch pedalFully released Existed
Slightly depressed Not existed
Page 2317 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-968
< COMPONENT DIAGNOSIS >[MR18DE]
ASCD INDICATOR
ASCD INDICATOR
DescriptionINFOID:0000000001161958
ASCD indicator lamp illuminates to indicate ASCD operation status. Lamp has two indicators, CRUI NISSAN TIIDA 2007 Service Repair Manual EC-968
< COMPONENT DIAGNOSIS >[MR18DE]
ASCD INDICATOR
ASCD INDICATOR
DescriptionINFOID:0000000001161958
ASCD indicator lamp illuminates to indicate ASCD operation status. Lamp has two indicators, CRUI](/manual-img/5/57395/w960_57395-2316.png)
EC-968
< COMPONENT DIAGNOSIS >[MR18DE]
ASCD INDICATOR
ASCD INDICATOR
DescriptionINFOID:0000000001161958
ASCD indicator lamp illuminates to indicate ASCD operation status. Lamp has two indicators, CRUISE and
SET, and is integrated in combination meter.
CRUISE lamp illuminates when MAIN switch on ASCD steering switch is turned ON to indicated that ASCD
system is ready for operation.
SET lamp illuminates when following conditions are met.
CRUISE lamp is illuminated.
SET/COAST switch on ASCD steering switch is turned ON while vehicle speed is within the range of ASCD
setting.
SET lamp remains lit during ASCD control.
Refer to EC-728, "
System Description" for the ASCD function.
Component Function CheckINFOID:0000000001161959
1.ASCD INDICATOR FUNCTION
Check ASCD indicator under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-968, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161960
1.CHECK DTC
Check that DTC U1000 or U1001 is not displayed.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble diagnosis for DTC U1000, U1001. Refer to EC-793, "
DTC Logic".
2.CHECK COMBINATION METER OPERATION
Refer to MWI-22, "
CONSULT-III Function (METER/M&A)".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check combination meter circuit. Refer to MWI-4, "
METER SYSTEM : System Diagram".
3.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
ASCD INDICATOR CONDITION SPECIFICATION
CRUISE LAMP Ignition switch: ON MAIN switch: Pressed at the
1st time →at the 2nd timeON → OFF
SET LAMPMAIN switch: ON
When vehicle speed: Be-
tween 40 km/h (25 MPH) and
144 km/h (89 MPH) ASCD: Operating ON
ASCD: Not operating OFF
Page 2318 of 5883
![NISSAN TIIDA 2007 Service Repair Manual COOLING FAN
EC-969
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COOLING FAN
DescriptionINFOID:0000000001161961
Cooling fan operates at each speed when the current flows in the cooli NISSAN TIIDA 2007 Service Repair Manual COOLING FAN
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COOLING FAN
DescriptionINFOID:0000000001161961
Cooling fan operates at each speed when the current flows in the cooli](/manual-img/5/57395/w960_57395-2317.png)
COOLING FAN
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COOLING FAN
DescriptionINFOID:0000000001161961
Cooling fan operates at each speed when the current flows in the cooling fan motor as follows.
Refer to EC-737, "
System Diagram" for cooling fan operation.
Component Function CheckINFOID:0000000001161962
1.CHECK COOLING FAN LOW SPEED FUNCTION
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III and touch “LOW” on the CON-
SULT-III screen.
3. Make sure that cooling fans operates at low speed.
Without CONSULT-III
1. Start engine and let it idle.
2. Turn air conditioner switch and blower fan switch ON.
3. Make sure that cooling fan operates at low speed.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check cooling fan low speed control circuit. Refer to EC-969, "
Diagnosis Procedure".
2.CHECK COOLING FAN HIGH SPEED FUNCTION
With CONSULT-III
1. Touch “HI” on the CONSULT-III screen.
2. Make sure that cooling fans operates at higher speed than low speed.
Without CONSULT-III
1. Perform IPDM E/R auto active test and check cooling fan motors operation.
2. Make sure that cooling fan operates at high speed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Check cooling fan high speed control circuit. Refer to EC-969, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161963
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES-2 >> With A/C models: GO TO 3.
YES-2 >> Without A/C models: GO TO 5.
NO >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
50A fusible link (letter J)(with A/C models)
40A fusible link (letter J)(without A/C models)
Harness for open or short between IPDM E/R and battery
IPDM E/R
Ground Continuity
Connector Terminal
E44 22 Ground Existed
Page 2319 of 5883
![NISSAN TIIDA 2007 Service Repair Manual EC-970
< COMPONENT DIAGNOSIS >[MR18DE]
COOLING FAN
>> Repair or replace malfunctioning part.
3.CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
1. Disconnect cooling fan motor harness connector.
2. NISSAN TIIDA 2007 Service Repair Manual EC-970
< COMPONENT DIAGNOSIS >[MR18DE]
COOLING FAN
>> Repair or replace malfunctioning part.
3.CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
1. Disconnect cooling fan motor harness connector.
2.](/manual-img/5/57395/w960_57395-2318.png)
EC-970
< COMPONENT DIAGNOSIS >[MR18DE]
COOLING FAN
>> Repair or replace malfunctioning part.
3.CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
1. Disconnect cooling fan motor harness connector.
2. Check the continuity between IPDM E/R harness connector and cooling fan motor harness connector.
3. Check the continuity between cooling fan motor harness connector or IPDM E/R harness connector and
ground.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
Harness for open or short between cooling fan motor and IPDM E/R
Harness for open or short between cooling fan motor and ground
Harness for open or short between IPDM E/R and ground
Resistor E5
>> Repair or replace malfunctioning part.
5.CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
1. Disconnect cooling fan motor harness connector.
2. Check the continuity between IPDM E/R harness connector and cooling fan motor harness connector.
3. Check the continuity between cooling fan motor harness connector or IPDM E/R harness connector and
ground.
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.
IPDM E/R Cooling fan motor
Continuity
Connector Terminal Connector Terminal
E45 30
E3 1 Existed
E44 24
Cooling fan motor IPDM E/R
Ground Continuity
Connector Terminal Connector Terminal
E3 2 E4659
Ground Existed
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IPDM E/R Cooling fan motor
Continuity
Connector Terminal Connector Terminal
E45 30
E31
Existed
E4424 2
23 3
Cooling fan motor IPDM E/R
Ground Continuity
Connector Terminal Connector Terminal
E3 4 E4659
Ground Existed
39
Page 2320 of 5883
![NISSAN TIIDA 2007 Service Repair Manual COOLING FAN
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6.DETECT MALFUNCTIONING PART
Check the following.
Harness for open or short between cooling fan motor and IPDM E/R
NISSAN TIIDA 2007 Service Repair Manual COOLING FAN
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6.DETECT MALFUNCTIONING PART
Check the following.
Harness for open or short between cooling fan motor and IPDM E/R](/manual-img/5/57395/w960_57395-2319.png)
COOLING FAN
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6.DETECT MALFUNCTIONING PART
Check the following.
Harness for open or short between cooling fan motor and IPDM E/R
Harness for open or short between cooling fan motor and ground
Harness for open or short between IPDM E/R and ground
>> Repair or replace malfunctioning part.
7.CHECK GROUND CONNECTION
Check ground connection E24. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace ground connection.
8.CHECK COOLING FAN MOTOR
Refer to EC-971, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace malfunctioning cooling fan motor.
9.CHECK INTERMITTENT INCIDENT
Perform GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness or connector.
Component InspectionINFOID:0000000001161964
1.CHECK OVERALL FUNCTION
Check if the vehicle is equipped with an air conditioner.
Is it equipped with an air conditioner?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK COOLING FAN MOTOR
1. Turn ignition switch OFF.
2. Disconnect cooling fan motor harness connector.
3. Supply cooling fan motor terminals with battery voltage and check operation.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace cooling fan motor.
3.CHECK COOLING FAN MOTOR
1. Turn ignition switch OFF.
2. Disconnect cooling fan motor harness connector.
3. Supply cooling fan motor terminals with battery voltage and check operation.
Te r m i n a l s
Operation
(+) (–)
1 2 Cooling fan operates.