DESCRIPTION The No. 1 damper servo sub-assembly (air outlet servo motor) sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal, reverse) based on the signals to move the air outlet damper to any position, which controls the air outlet switching. HINT: Confirm that no mechanical problem is present because this diagnostic trouble code can be output when either a damper link or damper is mechanically locked.
WIRING DIAGRAM PROCEDURE
(a) Use the Data List to check if the servo motor is functioning properly. Air Conditioner
OK: The display is as specified in the normal condition. Result
(a) Temporarily replace the No. 1 damper servo sub-assembly (air outlet servo motor) with a new one (see page ). HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new one and check that the condition returns to normal.
(a) Clear the DTC (see page ). (b) Check for DTC (see page ). OK: DTC is not output.
(a) Replace the air conditioning harness.
(a) Clear the DTC (see page ). (b) Check for DTC again (see page ). OK: DTC is not output.
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Toyota Tundra Service Manual > Center Airbag Sensor Assembly(for Column Shift Type): Installation
INSTALLATION PROCEDURE 1. INSTALL AIRBAG SENSOR ASSEMBLY (a) Check that the ignition switch is off. (b) Check that the cable is disconnected from the negative (-) battery terminal. CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the S ...