Air Conditioning (Diagnostic Codes & Circuit Tests): Other Lexus ES XV40 facelift

PROCEDURE

1. READ VALUE USING TECHSTREAM Connect Techstream to the DLC3. Turn the engine switch on (IG) and turn Techstream on. Operate the front passenger side temperature adjustment switch. Select the item below in the Data List, and read the display on Techstream. DATA LIST / AIR CONDITIONER: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Mix Pulse-P (Air Mix Servo Targ Pulse (P)) Passenger side air mix servo motor target pulse / Min.: 0, Max.: 255 MAX. COLD: 105 (pulse) MAX. HOT: 7 (pulse) - OK The display is as specified in the normal condition column. Result Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C C --> REPLACE AIR CONDITIONING AMPLIFIER B --> PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-396705-S36743094562011050900000) PROBLEM SYMPTOMS TABLE A: Go to next step
2. REPLACE AIR MIX CONTROL SERVO MOTOR Replace the air mix control servo motor. HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal. Check for DTCs. Result Result Proceed to DTC B1441/41 is output A DTC B1441/41 is not output B B --> END A --> REPLACE AIR CONDITIONING HARNESS

1. READ VALUE USING TECHSTREAM Connect Techstream to the DLC3. Turn the engine switch on (IG) and turn Techstream on. Operate the R/F (Recirculation/Fresh) switch. Select the item below in the Data List, and read the display on Techstream. DATA LIST / AIR CONDITIONER: Tester Display Measurement Item/Range Normal Condition Diagnostic Note A/I Damp Targ Pls (Air Inlet Damper Targ Pulse) Air inlet damper target pulse / Min.: 0, Max.: 255 RECIRCULATION: 7 (pulse) FRESH: 28 (pulse) - OK The display is as specified in the normal condition column. Result Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C C --> REPLACE AIR CONDITIONING AMPLIFIER B --> PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-396705-S36743094562011050900000) PROBLEM SYMPTOMS TABLE A: Go to next step
2. REPLACE AIR INLET CONTROL SERVO MOTOR Replace the air inlet control servo motor. HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal. Check for DTCs. Result Result Proceed to DTC B1442/42 is output A DTC B1442/42 is not output B B --> END A --> REPLACE AIR CONDITIONING HARNESS

1. READ VALUE USING TECHSTREAM Connect Techstream to the DLC3. Turn the engine switch on (IG) and turn Techstream on. Operate the MODE switch. Select the item below in the Data List, and read the display on Techstream. DATA LIST / AIR CONDITIONER: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Out Pulse-D (Air Outlet Servo Pulse (D)) Driver side air outlet servo motor target pulse / Min.: 0, Max.: 255 FACE: 8 (pulse) B/L: 30 to 38 (pulse) FOOT: 50 to 74 (pulse) FOOT/DEF: 80 (pulse) DEF: 97 (pulse) - OK The display is as specified in the normal condition column. Result Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C C --> REPLACE AIR CONDITIONING AMPLIFIER B --> PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-396705-S36743094562011050900000) PROBLEM SYMPTOMS TABLE A: Go to next step
2. REPLACE AIR OUTLET CONTROL SERVO MOTOR Replace the air outlet control servo motor. HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal. Check for DTCs. Result Result Proceed to DTC B1443/43 is output A DTC B1443/43 is not output B B --> END A --> REPLACE AIR CONDITIONING HARNESS

1. READ VALUE USING TECHSTREAM Connect Techstream to the DLC3. Turn the engine switch on (IG) and turn Techstream on. Operate the driver side temperature adjustment switch. Select the item below in the Data List, and read the display on Techstream. DATA LIST / AIR CONDITIONER: Tester Display Measurement Item/Range Normal Condition Diagnostic Note Air Mix Pulse-D (Air Mix Servo Targ Pulse (D)) Driver side air mix servo motor target pulse / Min.: 0, Max.: 255 MAX COLD: 5 (pulse) MAX HOT: 103 (pulse) - OK The display is as specified in the normal condition column. Result Result Proceed to NG A OK (When troubleshooting according to the PROBLEM SYMPTOMS TABLE) B OK (When troubleshooting according to the DTC) C C --> REPLACE AIR CONDITIONING AMPLIFIER B --> PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-396705-S36743094562011050900000) PROBLEM SYMPTOMS TABLE A: Go to next step
2. REPLACE AIR MIX CONTROL SERVO MOTOR Replace the air mix control servo motor. HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a normal one and check that the condition returns to normal. Check for DTCs. Result Result Proceed to DTC B1446/46 is output A DTC B1446/46 is not output B B --> END A --> REPLACE AIR CONDITIONING HARNESS