DESCRIPTIONThe No. 1 blower damper servo sub-assembly sends pulse signals to inform the air conditioning amplifier assembly of the damper position. The air conditioning amplifier assembly activates the motor (normal or reverse) based on these signals to move the air inlet damper to the appropriate position to change the air inlet mode (fresh, recirculation/fresh, and recirculation). The air conditioning amplifier assembly communicates with the servo through a communication/driver IC and wiring assembly called the air conditioning harness assembly.
DTC Detection Condition Combination Table
HINT: If the conditions of either of these patterns are detected, a DTC will be stored. WIRING DIAGRAMCAUTION / NOTICE / HINTHINT:
PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes. (e) Check for DTCs. Body Electrical > Air Conditioner > Trouble Codes
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Operate the recirculation/fresh switch. (e) Enter the following menus: Body Electrical / Air Conditioner / Data List. (f) Read the Data List according to the display on the Techstream. Body Electrical > Air Conditioner > Data List
Body Electrical > Air Conditioner > Data List
OK: When the recirculation/fresh switch is operated, the actual pulse changes following the target pulse.
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes. (e) Check for DTCs. Body Electrical > Air Conditioner > Trouble Codes
(a) Replace the No. 1 blower damper servo sub-assembly. HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes. (f) Check for DTCs. Body Electrical > Air Conditioner > Trouble Codes
(a) Replace the No. 1 air conditioning radiator damper servo sub-assembly. HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes. (f) Check for DTCs. Body Electrical > Air Conditioner > Trouble Codes
(a) Replace the air conditioning harness assembly. HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes. (f) Check for DTCs. Body Electrical > Air Conditioner > Trouble Codes
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