Vehicle Interior. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Heating Air Conditioning. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Air Conditioning System (For Automatic Air Conditioning System) -- Problem Symptoms Table |
- HINT:
- 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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
| All functions of the air conditioning system do not operate | Proceed to "IG Power Source Circuit" | HILUX_TGN26 RM000002LLU03QX.html |
| Integration panel sub-assembly | HILUX_TGN26 RM000001K3A01PX.html | |
| No. 1 cooler wire | HILUX_TGN26 RM000004QZA00AX.html | |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html | |
| Air Flow Control: No blower operation | Indicator check | HILUX_TGN26 RM000002LIT02JX.html |
| Integration panel sub-assembly | HILUX_TGN26 RM000001K3A01PX.html | |
| No. 1 cooler wire | HILUX_TGN26 RM000004QZA00AX.html | |
| Proceed to "Heater Relay Circuit" | HILUX_TGN26 RM000001DTG015X.html | |
| Proceed to "Blower Motor Circuit" | HILUX_TGN26 RM000001DTI020X.html | |
| Air Flow Control: No blower control | Indicator check | HILUX_TGN26 RM000002LIT02JX.html |
| Integration panel sub-assembly | HILUX_TGN26 RM000001K3A01PX.html | |
| No. 1 cooler wire | HILUX_TGN26 RM000004QZA00AX.html | |
| Proceed to "Blower Motor Circuit" | HILUX_TGN26 RM000001DTI020X.html | |
| Air Flow Control: Insufficient air flow | Proceed to "Blower Motor Circuit" | HILUX_TGN26 RM000001DTI020X.html |
| Temperature Control: No cool air comes out | Integration panel sub-assembly | HILUX_TGN26 RM000001K3A01PX.html |
| No. 1 cooler wire | HILUX_TGN26 RM000004QZA00AX.html | |
| Check volume of refrigerant | HILUX_TGN26 RM000001R8Z02GX.html | |
| Check for refrigerant gas leak | HILUX_TGN26 RM000001R8Y02IX.html | |
| Cooler expansion valve | HILUX_TGN26 RM0000012JQ01HX.html | |
| Proceed to "Pressure Switch Circuit" | HILUX_TGN26 RM000001DTB01KX.html | |
| Proceed to "Air Conditioning Compressor Magnetic Clutch Circuit" | HILUX_TGN26 RM000001DTH01PX.html | |
| Proceed to "Front Air Mix Damper Control Servo Motor Circuit" | HILUX_TGN26 RM000001LZM00YX.html | |
| Proceed to "Ambient Temperature Sensor Circuit" | HILUX_TGN26 RM000001DT901MX.html | |
| Proceed to "Evaporator Temperature Sensor Circuit" | HILUX_TGN26 RM000001DTA01MX.html | |
| Proceed to "Room Temperature Sensor Circuit" | HILUX_TGN26 RM000001DT801LX.html | |
| Proceed to "Solar Sensor Circuit" | HILUX_TGN26 RM000001DTK01NX.html | |
| Proceed to "Vehicle Speed Signal Circuit" | HILUX_TGN26 RM000001DTJ01LX.html | |
| Cooler compressor assembly (for 1KD-FTV) | HILUX_TGN26 RM0000012JZ02QX.html | |
| Cooler compressor assembly (for 2TR-FBE) | HILUX_TGN26 RM0000012JZ023X.html | |
| Cooler compressor assembly (for 1GR-FE) | HILUX_TGN26 RM0000012JZ02PX.html | |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html | |
| Temperature Control: No warm air comes out | Integration panel sub-assembly | HILUX_TGN26 RM000001K3A01PX.html |
| No. 1 cooler wire | HILUX_TGN26 RM000004QZA00AX.html | |
| Proceed to "Front Air Mix Damper Control Servo Motor Circuit" | HILUX_TGN26 RM000001LZM00YX.html | |
| Proceed to "Ambient Temperature Sensor Circuit" | HILUX_TGN26 RM000001DT901MX.html | |
| Proceed to "Evaporator Temperature Sensor Circuit" | HILUX_TGN26 RM000001DTA01MX.html | |
| Proceed to "Room Temperature Sensor Circuit" | HILUX_TGN26 RM000001DT801LX.html | |
| Proceed to "Solar Sensor Circuit" | HILUX_TGN26 RM000001DTK01NX.html | |
| Proceed to "Engine Coolant Temperature Communication Circuit" | HILUX_TGN26 RM000001LZL010X.html | |
| Proceed to "Vehicle Speed Signal Circuit" | HILUX_TGN26 RM000001DTJ01LX.html | |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html | |
| Temperature Control: Output air is warmer or cooler than set temperature or response is slow | Integration panel sub-assembly | HILUX_TGN26 RM000001K3A01PX.html |
| No. 1 cooler wire | HILUX_TGN26 RM000004QZA00AX.html | |
| Check volume of refrigerant | HILUX_TGN26 RM000001R8Z02GX.html | |
| Check for refrigerant gas leak | HILUX_TGN26 RM000001R8Y02IX.html | |
| Proceed to "Front Air Mix Damper Control Servo Motor Circuit" | HILUX_TGN26 RM000001LZM00YX.html | |
| Proceed to "Ambient Temperature Sensor Circuit" | HILUX_TGN26 RM000001DT901MX.html | |
| Proceed to "Evaporator Temperature Sensor Circuit" | HILUX_TGN26 RM000001DTA01MX.html | |
| Proceed to "Room Temperature Sensor Circuit" | HILUX_TGN26 RM000001DT801LX.html | |
| Proceed to "Solar Sensor Circuit" | HILUX_TGN26 RM000001DTK01NX.html | |
| Proceed to "Engine Coolant Temperature Communication Circuit" | HILUX_TGN26 RM000001LZL010X.html | |
| Proceed to "Vehicle Speed Signal Circuit" | HILUX_TGN26 RM000001DTJ01LX.html | |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html | |
| Temperature Control: No temperature control (only MAX COOL or MAX WARM) | Integration panel sub-assembly | HILUX_TGN26 RM000001K3A01PX.html |
| No. 1 cooler wire | HILUX_TGN26 RM000004QZA00AX.html | |
| Proceed to "Front Air Mix Damper Control Servo Motor Circuit" | HILUX_TGN26 RM000001LZM00YX.html | |
| Proceed to "Ambient Temperature Sensor Circuit" | HILUX_TGN26 RM000001DT901MX.html | |
| Proceed to "Evaporator Temperature Sensor Circuit" | HILUX_TGN26 RM000001DTA01MX.html | |
| Proceed to "Room Temperature Sensor Circuit" | HILUX_TGN26 RM000001DT801LX.html | |
| Proceed to "Solar Sensor Circuit" | HILUX_TGN26 RM000001DTK01NX.html | |
| Proceed to "Vehicle Speed Signal Circuit" | HILUX_TGN26 RM000001DTJ01LX.html | |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html | |
| No air inlet control | Proceed to "Air Inlet Damper Control Servo Motor Circuit" | HILUX_TGN26 RM000001DTC01KX.html |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html | |
| No air flow mode control | Proceed to "Air Outlet Damper Control Servo Motor Circuit" | HILUX_TGN26 RM000001DTD01KX.html |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html | |
| Engine idle up does not occur or is continuous | Proceed to "Air Conditioning Compressor Magnetic Clutch Circuit" | HILUX_TGN26 RM000001DTH01PX.html |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html | |
| Proceed to "ECD System (for 1KD-FTV [w/ EGR Cooler])" | HILUX_TGN26 RM0000012WB04SX.html | |
| Proceed to "ECD System (for 1KD-FTV [w/o EGR Cooler])" | HILUX_TGN26 RM0000012WB04TX.html | |
| Proceed to "ECD System (for 1KD-FTV [for DPF])" | HILUX_TGN26 RM0000012WB04PX.html | |
| Proceed to "ECD System (for 1KD-FTV [for i-ART])" | HILUX_TGN26 RM0000012WB04RX.html | |
| Proceed to "SFI System (for 2TR-FBE)" | HILUX_TGN26 RM000000PD90QFX.html | |
| Proceed to "SFI System (for 1GR-FE)" | HILUX_TGN26 RM000000PD90T9X.html | |
| Diagnostic trouble codes are not stored, and set mode is cleared when ignition switch is off | Proceed to "Back-up Power Source Circuit" | HILUX_TGN26 RM000002LLV03UX.html |
| Air conditioning amplifier assembly | HILUX_TGN26 RM000001K3A01QX.html |