Nissan Tiida C11. Manual — part 640
EC-1210
< COMPONENT DIAGNOSIS >
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ASCD INDICATOR
ASCD INDICATOR
Description
INFOID:0000000001162684
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 ASCD switch is turned ON to indicated that ASCD system is ready for opera-
tion.
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.
Component Function Check
INFOID:0000000001162685
1.
ASCD INDICATOR FUNCTION
Check ASCD indicator under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
EC-1210, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000001162686
1.
CHECK CAN COMMUNICATION LINE
LAN-33, "CAN Communication Signal Chart"
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace.
2.
CHECK COMBINATION METER OPERATION
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-21, "Diagnosis Description"
.
3.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
>> INSPECTION END
CONDITION
INDICATOR
• Ignition switch: ON
• ASCD switch: Pressed at the
1st time
→
at the 2nd time
Illuminated
→
Not illuminated
• ASCD switch: ON
• When vehicle speed: Between 40 km/h (25
MPH) and 144 km/h (89 MPH)
• ASCD: Operating
Illuminated
• ASCD: Not operating
Not illuminated
COOLING FAN
EC-1211
< COMPONENT DIAGNOSIS >
[K9K]
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COOLING FAN
Description
INFOID:0000000001162687
Cooling fan operates at each speed when the current flows in the cooling fan motor as follows.
Refer to
for cooling fan operation.
Component Function Check
INFOID:0000000001162688
1.
CHECK COOLING FAN LOW SPEED FUNCTION
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
>> Refer to
EC-1211, "Diagnosis Procedure"
2.
CHECK COOLING FAN HIGH SPEED FUNCTION
1.
Turn ignition switch OFF.
2.
Turn air conditioner switch and blower fan switch OFF.
3.
Disconnect engine coolant temperature sensor harness connector.
4.
Connect 150
Ω
resistor to engine coolant temperature sensor harness connector.
5.
Restart engine and make sure that cooling fan operates at higher speed than low speed.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
EC-1211, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000001162689
1.
CHECK CAN COMMUNICATION LINE
LAN-33, "CAN Communication Signal Chart"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace
2.
CHECK COOLING FAN RELAY POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R harness connector E44.
3.
Check the voltage between IPDM E/R harness connectors and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• 50A fusible link (letter J)
• Harness for open or short between IPDM E/R and battery
>> Repair or replace malfunctioning part.
4.
CHECK COOLING FAN CIRCUIT FOR OPEN AND SHORT
1.
Disconnect cooling fan motor harness connector.
IPDM E/R
Ground
Voltage
Connector
Terminal
E44
22
Ground
Battery voltage
EC-1212
< COMPONENT DIAGNOSIS >
[K9K]
COOLING FAN
2.
Disconnect IPDM E/R harness connectors E46 and E48.
3.
Check the continuity between cooling fan motor harness connector and IPDM E/R harness connector.
4.
Check the continuity between IPDM E/R harness connector and ground.
5.
Check the continuity between cooling fan motor and ground harness connector.
6.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
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 IPDM E/R and ground
• Harness for open or short between cooling fan motor and ground
• Resistor E5
>> Repair or replace malfunctioning part.
6.
CHECK COOLING FAN MOTOR
EC-1212, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace cooling fan motor.
7.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair or replace harness or connector.
Component Inspection
INFOID:0000000001162690
1.
CHECK COOLING FAN MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect cooling fan motor harness connector E3.
3.
Supply cooling fan motor terminal with battery voltage and check operation.
Cooling fan motor
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
E3
1
E44
20
Existed
24
IPDM E/R
Ground
Continuity
Connector
Terminal
E46
39
Ground
Existed
E48
59
Cooling fan motor
Ground
Continuity
Connector
Terminal
E3
2
Ground
Existed
COOLING FAN
EC-1213
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Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace cooling fan motor.
Terminals
Operation
(+)
(–)
1
2
Cooling fans operate
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