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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. Inspection " (HR16DE) or
CO-35, " Inspection " (MR18DE).
2. Check hoses for leaks or kinks.
3. Check Radiator cap. Refer to CO-14, " Checking Radiator Cap " HR16DE or
CO-40, " Checking Radiator
Cap " (MR18DE).
OK or NG OK >> GO TO 5.
NG >> Repair/replace as necessary. Air Mix Door Cable Adjustment " .
OK or NG
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YES >> GO TO 6.
NO >> Adjust or replace air mix door cable. Refer to MTC-64, " Air Mix Door Cable Adjustment " .
OK >> GO TO 7.
NG >> Repair air leaks. YES >> GO TO 8.
NO >> Both hoses warm: GO TO 9. Component Inspection " (MR TYPE 1),
EC-1196," Component Inspection " (MR TYPE 2) or
EC-169, " Component Inspection " (HR16DE).
OK or NG OK >> System OK.
NG >> Repair or replace as necessary. Retest. OK >> GO TO 10.
NG >> Repair /replace as necessary. Retest GO TO 7. Changing Engine Coolant " (HR16DE) or
CO-35, " Changing Engine Coolant " (MR18DE) .
4. Start engine and warm it up to normal operating temperature.
5. Touch both the inlet and outlet heater hoses.
Is the inlet hose hot and the outlet hose warm? YES >> System OK.
NO >> Replace heater core and refill engine coolant. Refer to MTC-67, " Removal and Installation " .
Noise INFOID:0000000004307075
SYMPTOM: Noise
INSPECTION FLOW
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Operational Check " *2.
EM-14, " Checking " (HR16DE) or
EM- 136, " Checking Drive Belts "
(MR18DE) *3.
MTC-45, " Insufficient Cooling "
*4.
MTC-86, " Removal and Installation of
Expansion Valve " *5.
MTC-78, " Removal and Installation of
Compressor - HR16DE " or
MTC-80, " Removal and Installation of Com-
pressor - MR18DE " *6
MTC-78, " Removal and Installation of
Compressor - HR16DE " or
MTC-80, " Removal and Installation of Com-
pressor - MR18DE "
*7.
MTC-78, " Removal and Installation of
Compressor - HR16DE " or
MTC-80, " Removal and Installation of Com-
pressor - MR18DE " *8.
MTC-17, " Maintenance of Oil Quanti-
ty in Compressor " *9
MTC-84, " Removal and Installation of
Liquid Tank "
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CONTROLLER
Removal and Installation INFOID:0000000004307076
REMOVAL 1. Remove cluster lid C and instrument finisher D. Refer to IP-11, " Component Parts " .
2. Remove intake door lever knob. Refer to MTC-56, " Disassembly and Assembly " .
3. Remove mounting screws and clips, and then remove controller finisher.
4. Remove mounting screws, and then pull out controller.
5. Remove instrument panel and pad. Refer to IP-11, " Component Parts " .
6. Remove air mix door cable, mode door cable and intake door cable from A/C unit assembly.
7. Disconnect connector, and then remove controller.
INSTALLATION Installation is in the reverse order of removal.
CAUTION:
Adjust the door cables during installation. Refer to MTC-63, " Intake Door Cable Adjustment " ,
MTC-65, " Mode Door Cable Adjustment " and
MTC-64, " Air Mix Door Cable Adjustment " .
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THERMO CONTROL AMPLIFIER
Removal and Installation INFOID:0000000004307078
NOTE:
Only MR18DE - TYPE 2 systems are equipped with a thermo control amplifier.
REMOVAL 1. Remove evaporator. Refer to MTC-85, " Removal and Installation of Evaporator " .
CAUTION:
Cap or wrap the joint of the pipe with suitable ma terial such as vinyl tape to avoid the entry of air.
2. Mark the mounting position of the thermo control amp. and then remove thermo control amp. (1) from evaporator (2).
INSTALLATION Installation is in the reverse order of removal.
CAUTION:
• Replace O-rings for A/C piping with new on es, and apply compressor oil when installing.
• Install the thermo control amp. at the mark made during removal of the thermo control amp.
• When recharging refrigerant, check for leaks.
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Changing Engine Coolant " .
3. Remove cowl top cover. Refer to EI-22, " Removal and Installation " .
4. Remove upper clip and position the lower dash insulator aside.
5. Remove bolt (A), and then disconnect low-pressure flexible hose (1) and high-pressure pipe (2) from evaporator.
CAUTION:
Cap or wrap the joint of the pi pe with suitable material such
as vinyl tape to avoid the entry of air.
6. Remove clamps (A), and then disconnect heater hoses (1) from heater core.
7. Remove console box assembly. Refer to IP-11, " Component Parts " .
A. A/C unit assembly bolts B. Steering member bolts C. Steering column nuts
SJIA0645E
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8. Remove instrument stay nuts (A) and harness clamps (B), and
then remove instrument stay (1).
9. Disconnect thermo control amp. connector (1) for MR18DE - TYPE 2 systems as shown. Disconnect the thermo control amp.
short connector for MR18DE - TYPE 1 and HR16DE systems.
10. Remove instrument panel and pad. Refer to IP-11, " Component Parts " .
11. Remove side ventilator ducts. Refer to MTC-69, " Removal and Installation " .
12. Remove center ventilator ducts. Refer to MTC-69, " Removal and Installation " .
13. Remove side kicking plates. Refer to EI-39, " Component " .
14. Disconnect the fuel filler door cable and the rear hatch door cable.
15. Remove A/C unit assembly bolts, steering member bolts, steering column nuts and harness clips.
16. Remove steering member, and then remove A/C unit assembly.
INSTALLATION Installation is in the reverse order of removal.
• When filling radiator with coolant, refer to CO-35, " Changing Engine Coolant " .
• Recharge the refrigerant.
CAUTION:
• Replace O-rings for A/C piping with new on es, and apply compressor oil when installing.
• When recharging refrigerant, check for leaks. Removal and Installation " .