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 problem symptoms. If multiple suspected areas are listed, 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.

Front Air Conditioning
Symptom
Suspected Area
See page
All functions of air conditioning system do not operate
Harness or connector
-
Cooler switch
Toyota Fortuner RM0000012KA002X.html
Air conditioning control assembly
Toyota Fortuner RM0000012KA002X.html
Air conditioning amplifier assembly
Toyota Fortuner RM0000012KH015X.html
Air flow control: No blower operation
Harness or connector
-
Air conditioning control assembly
Toyota Fortuner RM0000012KA002X.html
Blower resistor
Toyota Fortuner RM000001PXY001X.html
Blower with fan motor sub-assembly
Toyota Fortuner RM000001O88001X.html
Air flow control: No blower control
Harness or connector
-
Air conditioning control assembly
Toyota Fortuner RM0000012KA002X.html
Blower resistor
Toyota Fortuner RM000001PXY001X.html
Air flow control: Insufficient air comes out
Harness or connector
-
Air conditioning control assembly
Toyota Fortuner RM0000012KA002X.html
Blower resistor
Toyota Fortuner RM000001PXY001X.html
Blower with fan motor sub-assembly
Toyota Fortuner RM000001O88001X.html
Temperature control: No cool air comes out
Volume of refrigerant
Toyota Fortuner RM000000VTF00GX.html
Refrigerant gas leak
Toyota Fortuner RM000000VTE00GX.html
Cooler expansion valve
Toyota Fortuner RM0000012JQ01KX.html
Air conditioner tube & accessory assembly (air conditioner pressure sensor)
Toyota Fortuner RM0000012K8002X.html
Cooler switch
Toyota Fortuner RM0000012KA002X.html
Harness or connector
-
No. 1 cooler thermistor
Toyota Fortuner RM000001ZHT000X.html
Cooler compressor assembly (1KD-FTV)
Toyota Fortuner RM0000012JX00ZX.html
Cooler compressor assembly (2KD-FTV)
Toyota Fortuner RM0000012JX00ZX.html
Cooler compressor assembly (5L-E)
Toyota Fortuner RM0000016AI01WX.html
Cooler compressor assembly (2TR-FE)
Toyota Fortuner RM0000012JX00GX.html
Air conditioning control assembly
Toyota Fortuner RM0000012KA002X.html
Air conditioning amplifier assembly
Toyota Fortuner RM0000012KH015X.html
ECM (for 1KD-FTV)
Toyota Fortuner RM0000013Z0004X.html
ECM (for 2KD-FTV)
Toyota Fortuner RM0000043H100CX.html
ECM (for 5L-E)
Toyota Fortuner RM000000VW200IX.html
ECM (for 2TR-FE)
Toyota Fortuner RM000000VW200JX.html
Temperature control: No warm air comes out
Harness or connector
-
Air conditioning control assembly
Toyota Fortuner RM0000012KA002X.html
Temperature control: Output air is warmer or cooler than set temperature or response is slow
Volume of refrigerant
Toyota Fortuner RM000000VTF00GX.html
Refrigerant gas leak
Toyota Fortuner RM000000VTE00GX.html
Harness or connector
-
No. 1 cooler thermistor
Toyota Fortuner RM000001ZHT000X.html
Air conditioning control assembly
Toyota Fortuner RM0000012KA002X.html
Air conditioning amplifier assembly
Toyota Fortuner RM0000012KH015X.html
ECM (for 1KD-FTV)
Toyota Fortuner RM0000013Z0004X.html
ECM (for 2KD-FTV)
Toyota Fortuner RM0000043H100CX.html
ECM (for 5L-E)
Toyota Fortuner RM000000VW200IX.html
ECM (for 2TR-FE)
Toyota Fortuner RM000000VW200JX.html
Engine idle-up does not occur, or is continuous
Cooler compressor assembly (1KD-FTV)
Toyota Fortuner RM0000012JX00ZX.html
Cooler compressor assembly (2KD-FTV)
Toyota Fortuner RM0000012JX00ZX.html
Cooler compressor assembly (5L-E)
Toyota Fortuner RM0000016AI01WX.html
Cooler compressor assembly (2TR-FE)
Toyota Fortuner RM0000012JX00GX.html
Harness or connector
-
Cooler switch
Toyota Fortuner RM0000012KA002X.html
Air conditioning control assembly
Toyota Fortuner RM0000012KA002X.html
Air conditioning amplifier assembly
Toyota Fortuner RM0000012KH015X.html
Proceed to "ECD system (for 1KD-FTV)"
Toyota Fortuner RM0000012WB03QX.html
Proceed to "ECD system (for 2KD-FTV)"
Toyota Fortuner RM0000012WB03NX.html
Proceed to "ECD system (for 5L-E)"
Toyota Fortuner RM000000VQ9004X.html
Proceed to "SFI system (for 2TR-FE)"
Toyota Fortuner RM000000ZPQ007X.html

Rear Cooler
Symptom
Suspected Area
See page
All functions of rear cooler do not operate
Rear cooler switch
Toyota Fortuner RM00000249K007X.html
Cooler control switch assembly
Toyota Fortuner RM00000249K007X.html
Rear blower register
Toyota Fortuner RM000001JR300QX.html
Rear blower with fan motor sub-assembly
Toyota Fortuner RM000001G9X00DX.html
Harness or connector
-
Air Flow Control: No blower operation
Rear cooler switch
Toyota Fortuner RM00000249K007X.html
Cooler control switch assembly
Toyota Fortuner RM00000249K007X.html
Rear blower register
Toyota Fortuner RM000001JR300QX.html
Rear blower with fan motor sub-assembly
Toyota Fortuner RM000001G9X00DX.html
Harness or connector
-
Air Flow Control: No blower control
Cooler control switch assembly
Toyota Fortuner RM00000249K007X.html
Rear blower register
Toyota Fortuner RM000001JR300QX.html
Rear blower with fan motor sub-assembly
Toyota Fortuner RM000001G9X00DX.html
Harness or connector
-
Temperature Control: No cool air comes out
Rear cooler switch
Toyota Fortuner RM00000249K007X.html
Cooler control switch assembly
Toyota Fortuner RM00000249K007X.html
Harness or connector
-
Rear evaporator sub-assembly
Toyota Fortuner RM000001JR300QX.html