Air Conditioning System (For Manual Air Conditioning System) Problem Symptoms Table

Air Conditioning System (For Manual Air Conditioning System) -- Problem Symptoms Table


HINT:
  1. Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.
  3. If the malfunction still exists even after checking and confirming that all the circuits are normal, replace the A/C amplifier.

A/C system
Symptom
Suspected area
See page
All functions of A/C system do not operate
1. A/C control assembly
Toyota Fortuner RM0000012KA002X.html
2. A/C amplifier assembly
Toyota Fortuner RM0000012KG002X.html
3. Wire harness
-
Air flow control: No blower operation
1. Blower resistor
Toyota Fortuner RM000001PXY001X_01_0001.html
2. Blower w/ fan motor sub-assembly
Toyota Fortuner RM000001O88001X.html
3. A/C control assembly
Toyota Fortuner RM0000012KA002X_01_0001.html
4. Wire harness
-
Air flow control: No blower control
1. Blower resistor
Toyota Fortuner RM000001PXY001X.html
2. A/C control assembly
Toyota Fortuner RM0000012KA002X_01_0001.html
3. Wire harness
-
Air flow control: Insufficient air comes out
1. Blower w/ fan motor sub-assembly
Toyota Fortuner RM000001O88001X.html
2. Blower resistor
Toyota Fortuner RM000001PXY001X.html
3. A/C control assembly
Toyota Fortuner RM0000012KA002X_01_0001.html
4. Wire harness
-
Temperature control: No cool air comes out
1. Volume of refrigerant
-
2. Drive belt (1KD-FTV)
Toyota Fortuner RM000001476002X.html
3. Drive belt (1GR-FE)
Toyota Fortuner RM000000YN3003X.html
4. Refrigerant pressure
-
5. Cooler compressor assembly (1KD-FTV)
Toyota Fortuner RM000001PY1001X_01_0001.html
6. Cooler compressor assembly (1GR-FE)
Toyota Fortuner RM000001JPM001X.html
7 A/C pressure switch
Toyota Fortuner RM0000012K8002X.html
8. Air mix control cable
-
9. A/C control assembly
Toyota Fortuner RM0000012KA002X_01_0001.html
10. Wire harness
-
Temperature control: Output air is warmer or cooler than set temperature or response is slow
1. Air mix control cable
-
2. A/C control assembly
Toyota Fortuner RM0000012KA002X_01_0001.html
Temperature control: No temperature control
1. Air mix control cable
-
2. A/C control assembly
Toyota Fortuner RM0000012KA002X_01_0001.html
No air inlet control
1. Air inlet damper control cable
-
2. A/C control assembly
Toyota Fortuner RM0000012KA002X_01_0001.html
No air outlet control
1. Mode control cable
-
2. A/C control assembly
Toyota Fortuner RM0000012KA002X_01_0001.html
Engine idle-up does not occur, or is continuous
1. Cooler compressor assembly (1KD-FTV)
Toyota Fortuner RM000001PY1001X.html
2. Cooler compressor assembly (1GR-FE)
Toyota Fortuner RM000001JPM001X.html
3. A/C control assembly
Toyota Fortuner RM0000012KA002X.html
4. A/C amplifier assembly
Toyota Fortuner RM0000012KG002X.html
5. ECM (1KID-FTV)
Toyota Fortuner RM0000013YZ002X.html
6. ECM (1GR-FE)
Toyota Fortuner RM000000VW100DX.html

Rear cooler
Symptom
Suspected area
See page
Air flow control: No blower operation
1. Rear cooler relay
Toyota Fortuner RM000001HL4001X_01_0001.html
2. Blower motor sub-assembly (rear)
Toyota Fortuner RM000001G9X001X_01_0001.html
3. Cooler control switch assembly
Toyota Fortuner RM0000012KB002X.html
4. Wire harness
-
Air flow control: No blower control
1. Blower motor sub-assembly (rear)
Toyota Fortuner RM000001G9X001X_01_0001.html
2. Blower (rear) resistor
Toyota Fortuner RM000001PXY001X.html
3. Cooler control switch assembly
Toyota Fortuner RM0000012KB002X.html
4. Wire harness
-
Temperature control: No cool air comes out
1. Volume of refrigerant
-
2. Drive belt (1KD-FTV)
Toyota Fortuner RM000001476002X.html
3. Drive belt (1GR-FE)
Toyota Fortuner RM000000YN3003X.html
4. Refrigerant pressure
-
5. Cooler compressor assembly (1KD-FTV)
Toyota Fortuner RM000001PY1001X_01_0001.html
6. Cooler compressor assembly (1GR-FE)
Toyota Fortuner RM000001JPM001X.html
7. Cooler control switch assembly
Toyota Fortuner RM0000012KB002X.html
8. Wire harness
-