2011 NISSAN LATIO Service Repair Manual

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NISSAN LATIO 2011 Service Repair Manual TROUBLE DIAGNOSISMTC-53
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Insufficient HeatingINFOID:0000000005930855
SYMPTOM: Insufficient heating
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMI

TROUBLE DIAGNOSISMTC-53
< SERVICE INFORMATION >
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Insufficient HeatingINFOID:0000000005930855
SYMPTOM: Insufficient heating
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERAT IONAL CHECK - TEMPERATURE INCREASE
1. Turn temperature control dial clockwise to maximum heat position.
2. Check for hot air at discharge air outlets.
Can the symptom be duplicated?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK FOR ANY SYMPTOMS
Perform a complete operational check for any symptoms. Refer to MTC-31, "
Operational Check" .
Does another symptom exist?
YES >> Refer to MTC-23, "How to Perform Trouble Diagnosis for Quick and Accurate Repair" .
NO >> System OK.
3.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 4.
4.CHECK COOLANT SYSTEM
1. Check engine coolant level. Refer to CO-11, "
Inspection" (HR16DE) or CO-36, "Inspection" (MR18DE).
2. Check hoses for leaks or kinks.
3. Check Radiator cap. Refer to CO-14, "
Checking Radiator Cap" HR16DE or CO-39, "Checking Radiator
Cap" (MR18DE).
OK or NG
OK >> GO TO 5.
NG >> Repair/replace as necessary.
5.CHECK AIR MIX DOOR CABLE
Check air mix door cable operation. Refer to MTC-65, "
Air Mix Door Cable Adjustment" .
OK or NG
Gauge indication Refrigerant cycleProbable causeCorrective action
Low-pressure side becomes nega-
tive. Liquid tank or front/rear side of
expansion valve’s pipe is frost-
ed or dewed.High-pressure side is closed
and refrigerant does not flow.
↓
Expansion valve or liquid tank
is frosted.Leave the system at rest until
no frost is present. Start it
again to check whether or not
the malfunction is caused by
water or foreign particles.
• If water is the cause, initially
cooling is okay. Then the wa-
ter freezes causing a block-
age. Drain water from
refrigerant or replace refrig-
erant.
• If due to foreign particles, re-
move expansion valve and
remove the particles with dry
and compressed air (not
shop air).
• If either of the above meth- ods cannot correct the mal-
function, replace expansion
valve.
• Replace liquid tank.
• Check oil for contamination.
AC362A
Revision: May 2010 2011 Versa

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NISSAN LATIO 2011 Service Repair Manual MTC-54
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
YES >> GO TO 6.
NO >> Adjust or replace air mix door cable. Refer to MTC-65, "
Air Mix Door Cable Adjustment" .
6.CHECK AIR DUCTS
Check ducts for air l

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NISSAN LATIO 2011 Service Repair Manual TROUBLE DIAGNOSISMTC-55
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*1. MTC-31, "Operational Check"*2.EM-13, "Checking" (HR16DE) or EM-
132, "Checking Drive Belts"
(MR18DE) *3.
MTC-46,

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NISSAN LATIO 2011 Service Repair Manual MTC-56
< SERVICE INFORMATION >
CONTROLLER
CONTROLLER
Removal and InstallationINFOID:0000000005930857
REMOVAL
1. Remove instrument finisher E. Refer to IP-11, "Component Parts" .
2. Remove instrument f

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NISSAN LATIO 2011 Service Repair Manual CONTROLLERMTC-57
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Disassembly and AssemblyINFOID:0000000005930858
CAUTION:
Install inner cable of each do or cable to the corresponding
lever, a

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NISSAN LATIO 2011 Service Repair Manual MTC-58
< SERVICE INFORMATION >
THERMO CONTROL AMPLIFIER
THERMO CONTROL AMPLIFIER
Removal and InstallationINFOID:0000000005930859
NOTE:
Only MR18DE - TYPE 2 systems are equipped with a thermo control a

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NISSAN LATIO 2011 Service Repair Manual A/C UNIT ASSEMBLYMTC-59
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A/C UNIT ASSEMBLY
Removal and InstallationINFOID:0000000005930860
REMOVAL
1. Use a recovery/recycling equipment (f or H

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NISSAN LATIO 2011 Service Repair Manual MTC-60
< SERVICE INFORMATION >
A/C UNIT ASSEMBLY
8. Remove instrument stay nuts (A) and harness clamps (B), andthen remove instrument stay (1).
9. Disconnect thermo control amp. connector (1) for MR18

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