Lexus IS250 IS220d GSE20 ALE20 - AIR CONDITIONING
AIR CONDITIONING SYSTEM - DATA LIST / ACTIVE TEST
| DATA LIST |
- HINT:
- Using the intelligent tester's Data List allows switch, sensor, actuator, and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the tester on.
Enter the following menus: Body / Air Conditioner / Data List.
Check the value(s) by referring to the table below.
| Item | Measurement Item / Display (Range) | Normal Condition | Diagnostic Note |
| Room Temperature Sensor (Room Temp) | Room temperature sensor / Min.: -6.5°C (20.3°F), Max.: 57.25°C (135.05°F) | Actual cabin temperature is displayed | - |
| Ambient Temp Sensor (Ambi Temp Sens) | Ambient temperature sensor / Min.: -23.3°C (-9.94°F), Max.: 65.95°C (150.71°F) | Actual ambient temperature is displayed | - |
| Evaporator Temp Sensor (Evap Temp) | Evaporator temperature sensor / Min.: -29.7°C (-21.46°F), Max.: 59.55°C (139.19°F) | Actual evaporator temperature is displayed | - |
| Solar Sensor (D side) (Solar Sens-D) | Driver side solar sensor / Min.: 0, Max.: 255 | Driver side temperature increases as brightness increases | - |
| Solar Sensor (P side) (Solar Sens-P) | Passenger side solar sensor / Min.: 0, Max.: 255 | Passenger side temperature increases as brightness increases | - |
| Engine Coolant Temp (Coolant Temp) | Engine coolant temperature / Min.: 1.3°C (34.34°F), Max.: 90.55°C (194.99°F) | Actual engine coolant temperature is displayed while engine is warmed up | - |
| Set Temperature (D - side) (Set Temp-D) | Driver side set temperature / Min.: 0, Max.: 255 | Driver side set temperature is displayed | - |
| Set Temperature (P - side) (Set Temp-P) | Passenger side set temperature / Min.: 0, Max.: 255 | Passenger side set temperature is displayed | - |
| Estimated Temp (D side) (Estimate Temp-D) | Driver side estimated temperature / Min.: -358.4°C (-613.12°F), Max.: 358.4°C (677.12°F) | Driver side estimated temperature is displayed | - |
| Estimated Temp (P side) (Estimate Temp-P) | Passenger side estimated temperature / Min.: -358.4°C (-613.12°F), Max.: 358.4°C (677.12°F) | Passenger side estimated temperature is displayed | - |
| Hand Free Telephone (Hand free tel) | Hands free telephone / OFF or ON | - | - |
| Blower Motor Speed Level (Blower Level) | Blower motor speed level / Min.: 0 level, Max.: 31 level | Increases in the range between 0 and 31 as the blower motor speed increases | - |
| Adjusted Ambient Temp (Ambi Temp) | Adjusted ambient temperature / Min.: -30.8°C (-23.44°F), Max.: 50.8°C (123.44°F) | - | - |
| Emission Gas Sensor (Emiss Gas Sens) | Emission gas / Min.: 0 V, Max.: 255 V | Smog ventilation sensor value increases as gas amount increases | - |
| Shift Set Temperature (Set Temp Shift) | Shift set temperature / +2 C, +1 C, NORMAL, -1 C, -2 C | Customized value will be displayed | - |
| Air Inlet Mode (Air Inlet Mode) | Air inlet mode / AUTO, MANUAL | Customized value will be displayed | - |
| Compressor Mode (Compressor Mode) | Compressor mode / AUTO, MANUAL | Customized value will be displayed | - |
| Compressor / DEF Mode (Comp / DEF Oper) | Compressor / DEF mode / LINK, NORMAL | Customized value will be displayed | - |
| Evaporator Control (Evap Ctrl) | Evaporator control / AUTO, MANUAL | Customized value will be displayed | - |
| Emission Gas Sensor Shift (Gas Sens Shift) | Emission gas sensor shift / MU MORE, MORE, LI MORE, NORMAL, LI LESS, LESS, MU LESS | Customized value will be displayed | - |
| Button Press Buzzer (Button Prs Buz) | Button press buzzer / ON, OFF | Customized value will be displayed | - |
| Foot Air Leak (Foot Air Leak) | Foot air leak / ON, OFF | Customized value will be displayed | - |
| Foot / DEF Auto Blower Up (Auto Blow Up) | Foot / DEF auto blower up function / ON, OFF | Customized value will be displayed | - |
| Foot /DEF Auto Mode (Foot /DEF Mode) | Foot / DEF auto mode / ON, OFF | Customized value will be displayed | - |
| Ambient Temperature Shift (Ambient Tmp Sft) | Ambient temperature shift / +3 C, +2 C, +1 C, NORMAL, -1 C, -2 C, -3 C | Customized value will be displayed | - |
| Destination (Destination) | Destination / DOMEST, USA, EUROPE, AUSTRAL, MIDEAST, NO INFO | Value changes with destinations | - |
| Emission Gas Nox Sensor (Nox Gas Sens) | Emission gas / Min.: 0, Max.: 255 | Smog ventilation sensor value increases as gas amount increases | - |
| Regulator Pressure Sensor (Reg Press Sens) | Regulator pressure sensor / Min.: 0, Max.: 255 | Actual regulator pressure is displayed | - |
| Regulator Control Current (Reg Ctrl Current) | Regulator control current / Min.: 0 A, Max.: 255 A | - | - |
| Air Mix Servo Targ Pulse (D) (Air Mix Pulse-D) | Driver side air mix servo motor target pulse / Min.: 0, Max.: 255 | MAX. COLD: 5 (pulse) MAX. HOT: 104 (Pulse) | - |
| Air Mix Servo Targ Pulse (P) (Air Mix Pulse-P) | Passenger side air mix servo motor target pulse / Min.: 0, Max.: 255 | MAX. COLD: 105 (pulse) MAX. HOT: 6 (pulse) | - |
| Air Outlet Servo Pulse (D) (Air Out Pulse-D) | Driver side air outlet servo motor target pulse / Min.: 0, Max.: 255 | FACE: 9 to 17 (pulse) B/L: 32 to 38 (pulse) FOOT: 56 to 70 (pulse) FOOT/DEF: 84 (pulse) DEF: 97 (pulse) | - |
| Air Inlet Damper Targ Pulse (A/I Damp Pls) | Air inlet damper target pulse / Min.: 0, Max.: 255 | LHD: RECIRCULATION: 31 (pulse) FRESH: 7 (pulse) RHD: RECIRCULATION: 7 FRESH: 27 | - |
| Cool Air Bypass pulse (A/B Damp Pls) | Driver side cool air bypass pulse / Min.: 0, Max.: 255 | CLOSE: 50 (pulse) Open: 8 (pulse) | - |
| Number of Trouble Codes (#Codes) | Number of trouble codes / Min.: 0, Max.: 255 | Number of DTCs will be displayed | - |
| Item | Measurement Item / (Range) Display | Normal Condition | Diagnostic Note |
| A/C Signal (A/C Signal) | A/C signal / ON or OFF | ON: A/C ON OFF: A/C OFF | - |
| A/C Magnetic Clutch Relay (A/C Magnetic Clutch Relay) | A/C magnetic clutch relay / OFF, ON | ON: A/C magnetic clutch ON OFF: A/C magnetic clutch OFF | - |
| ACTIVE TEST |
- HINT:
- Performing the intelligent tester's Active Test allows relays, VSVs, actuators and other items to be operated without removing any parts. Performing the Active Test early in troubleshooting is one way to save time. The Data List can be displayed in the Active Test.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the tester on.
Enter the following menus: Body / Air Conditioner / Active Test.
Perform the Active Test by referring to the table below.
| Item | Test Details / Display (Range) | Diagnostic Note |
| Blower Motor (Blower Motor) | Blower motor / Min.: Level 0, Max.: Level 31 | - |
| Magnetic Clutch Relay (A/C Mag Clutch) | Magnetic clutch relay / OFF, ON | - |
| Defogger Relay (Rear) (Defogger Rly-R) | Defogger relay (Rear) / OFF, ON | - |
| Mirror Heater Relay (Mir heater) | Mirror heater relay /OFF, ON | - |
| Electric Heater 1 (Heater 1) | Electric Heater 1 / OFF, ON | - |
| Electric Heater 2 (Heater 2) | Electric Heater 2 / OFF, ON | - |
| Air Mix Servo Targ Pulse (D) (Air Mix Pulse-D) | Driver side air mix servo motor pulse / Min.: 0, Max.: 255 | - |
| Air Mix Servo Targ Pulse (P) (Air Mix Pulse -P) | Passenger side air mix servo motor pulse / Min.: 0, Max.: 255 | - |
| Air Outlet Servo Pulse (D) (Air Out Pulse- D) | Driver side air outlet servo motor pulse / Min.: 0, Max.: 255 | - |
| Air Inlet Damper Targ pulse (A/I Damp Targ Pls) | Air inlet damper target pulse / Min.: 0, Max.: 255 | - |
| Cool Air Bypass pulse (A/B Damp Pls) | Cool air bypass pulse / Min.: 0, Max.: 255 | - |
| Item | Test Details / Display (Range) | Diagnostic Note |
| Magnetic Clutch Relay (A/C Mag clutch) | Magnetic clutch relay / OFF, ON | - |
LEXUS IS250, IS220d / GSE20 ALE20