NISSAN TIIDA 2009 Service Repair Manual

OK >> GO TO 8.
NG >> Repair harness or connector. OK >> GO TO 9.
NG >> Replace front air control. Refer to MTC-58, " Removal and Installation " .
OK >> Inspection End.
NG >> Repair harness or connector.
10. CHECK CIRCUIT CONTINUITY BE TWEEN FRONT AIR CONTROL AND FRONT BLOWER MOTOR

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OK >> GO TO 11.
NG >> Repair harness or connector. OK >> Replace the front blower motor resistor. Refer to
MTC-66, " Removal and Installation " .
NG >> Replace front air control. Refer to MTC-58, " Removal and Installation " .
Magnet Clutch Circuit (If Equipped) INFOID:0000000004307072
SYMPTOM: Magnet clutch does not engage.
INSPECTION FLOW YES >> GO TO 3.
NO >> GO TO 2. Operational Check " .
Does another symptom exist? YES >> Refer to
MTC-22, " How to Perform Trouble Diagnosis for Quick and Accurate Repair " .
NO >> System OK. Checking " (HR16DE) or
EM-136, " Checking Drive Belts "
(MR18DE).
OK or NG OK >> GO TO 5.
NG >> Adjust or replace A/C compressor belt. Refer to EM-15, " Removal and Installation " (HR16DE) or
EM-136, " Removal and Installation " (MR18DE).
Insufficient Cooling " .
OK or NG OK >> GO TO 6.
NG >> Perform trouble diagnosis for unusual pressure. Refer to MTC-45, " Insufficient Cooling " .
Terminals Condition Continuity
9 14 Fan control dial: OFF
Yes
10 Fan control dial: 1-speed
11 Fan control dial: 2-speed
12 Fan control dial: 3-speed
13 Fan control dial: 4-speed

OK >> If the symptom still exists, perform
a complete operational check. Refer to MTC-30, " Operational
Check " . If other symptoms exist, refer to
MTC-22, " How to Perform Trouble Diagnosis for Quick
and Accurate Repair " .
NG >> Repair as necessary.
SYSTEM DESCRIPTION
Thermo control amp. controls A/C compressor operat ion by intake air temperature and signal from ECM.
The defrost A/C switch controls A/ C compressor operation by the BCM when the mode switch is turned to the
(DEF) position.
Low Temperature Protection Control
When intake air temperatures are higher than 4 °C (39 °F), the com-
pressor turns ON. The compressor turns OFF when intake air tem-
peratures are lower than 2 °C (36 °F).
DIAGNOSTIC PROCEDURE FOR MAGNET CLUTCH
SYMPTOM: Magnet clutch does not engage in A/C, defrost/foot, or defrost mode.Auto Active Test " .
Does the magnet clutch operate? YES >> GO TO 5.
NO >> Check 10A fuse (No. 42, located in the IPDM E/R). Refer to PG-23, " IPDM E/R Terminal
Arrangement - Type B " .
• If fuse is OK, GO TO 2.
• If fuse is NG, replace fuse and check harness for short circuit. Repair or replace if necessary.

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OK or NG OK >> GO TO 3.
NG >> Check harness for open circuit. Re pair or replace if necessary.OK >> Replace magnet clutch. Refer to
MTC-78, " Removal and
Installation of Compressor - HR16DE " or
MTC-80, " Removal and Installation of Compressor - MR18DE " .
NG >> GO TO 4. OK >> Replace IPDM E/R. Refer to
PG-27, " Removal and
Installation of IPDM E/R " .
NG >> Repair harness or connector. OK >> GO TO 6.
NG >> GO TO 23. CONSULT-II Function (BCM) " .
OK or NG OK >> GO TO 8.
NG >> GO TO 7.

OK >> GO TO 8.
NG >> Repair harness or connector. Diagnosis Procedure " (MR type 1),
EC-1529, " Diagnosis Procedure " (MR type 2) or
EC-458, " Diagnosis Procedure " (HR16DE).
.OK or NG OK >> • WITH CONSULT-III
GO TO 9.
• WITHOUT CONSULT-III GO TO 10.
NG >> Replace as necessary. CONSULT-II Function (BCM) " .
OK or NG OK >> GO TO 12.
NG >> GO TO 10. OK >> GO TO 12.
NG >> GO TO 11. ZJIA0583J

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1. Turn ignition switch OFF.
2. Disconnect front air control connector and BCM connector.
3. Check continuity between BCM harness connector M18 (A) ter-
minal 28 and front air control harness connector M33 (B) termi-
nal 14.
OK or NG OK >> GO TO 12.
NG >> Repair harness or connector. OK >> GO TO 13.
NG >> Replace front air control. Refer to MTC-56, " Disassem-
bly and Assembly " .
OK >> GO TO 14.
NG >> Repair harness or connector.

OK >> GO TO 15.
NG >> GO TO 17. OK >> GO TO 16.
NG >> Replace front air control. Refer to MTC-56, " Disassem-
bly and Assembly " .
OK >> GO TO 17.
NG >> Repair harness or connector. SJIA0760E

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OK or NG OK >> • GO TO 18 (with CVT).
• GO TO 19 (without CVT).
NG >> GO TO 21. OK >> Repair thermo control amp. jumper as necessary.
NG >> Repair harness or connector. OK >> GO TO 20.
NG >> Check power supply circuit and 10A fuse [No. 16, located in the fuse block (JB)]. Refer to PG-72 .
• If fuse is OK, check harness for open circuit. Repair or
replace if necessary.
• If fuse is NG, replace fuse and check harness for short circuit. Repair or replace if necessary. OK >> Replace thermo control amp. Refer to
MTC-57," Removal and Installation " .
NG >> Repair harness or connector.

OK >> GO TO 22.
NG >> Repair harness or connector. Trouble Diagnosis Flow Chart " .
• BCM – ECM
• ECM – IPDM E/R
OK or NG OK >> Replace BCM. Refer to
BCS-18, " Removal and Installation of BCM " .
NG >> Repair or replace malfunctioning part(s). OK >> Replace BCM. Refer to
BCS-18, " Removal and Installation of BCM " .
NG >> GO TO 24. OK >> GO TO 25.
NG >> Repair harness or connector.

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Check continuity between A/C def
rost switch harness connector
M41 terminal 16 and ground.
OK or NG OK >> Replace defrost A/C switch.
NG >> Repair harness or connector.
Insufficient Cooling INFOID:0000000004307073
SYMPTOM: Insufficient cooling
INSPECTION FLOW YES >> GO TO 3.
NO >> GO TO 2. Operational Check " .
Does another symptom exist? YES >> Refer to
MTC-22, " How to Perform Trouble Diagnosis for Quick and Accurate Repair " .
NO >> System OK. Checking " (HR16DE) or
EM-136, " Checking Drive Belts "
(MR18DE).
OK or NG OK >> GO TO 5.
NG >> Adjust or replace compressor belt. Refer to EM-15, " Removal and Installation " (HR16DE) or
EM- 136, " Removal and Installation " (MR18DE).
Air Mix Door Cable Adjustment " .
Does air mix door operate correctly? YES >> GO TO 6.
NO >> Repair or replace as necessary. Overall Function Check " (MR
TYPE 1), EC-1409, " Overall Function Check " (MR TYPE 2) or
EC-368, " Component Function Check "
(HR16DE).
Does cooling fan motor operate correctly? YES >> GO TO 7.
NO >> Check cooling fan motor. Refer to EC-890, " Diagnosis Procedure " (MR TYPE 1),
EC-1412, " Diag-
nosis Procedure " (MR TYPE 2) or
EC-368, " Component Function Check " (HR16DE).
16 - Ground :Continuity should exist