OEM Scion xA A/C Switch

Scion xA A/C Switch Parts and Q&A

• Controller, Center
  55937-52120
  Q: How to troubleshoot and repair the A/C Switch on Scion xA?

  A:

  The first step for repairing the HVAC control assembly requires users to disconnect the negative battery cable and wait 90 seconds to stop Air Bag and seat belt pretensioner activation. Remove first the heater control knobs before dismantling the number 2 and number 1 instrument cluster finish panel garnishes. Service the instrument cluster finish panel sub-assembly center by first unscrewing 4 screws and then detaching 4 clips and a claw before disconnecting the connectors. Start by unclipping the cables that connect the defroster damper control to the heater control and accessory assembly through three screws and the screwdriver-detached cable clamp claw. Stop the cable wire bending. Detach the claw from the air inlet damper control lever before removing the heater switch assembly by unscrewing its 2 screws. The heater switch assembly should be installed first and followed by the air inlet damper control lever for installation. Connect the inner and outer cables of the air mix damper control cable while the defroster damper control cable must function properly with straight wires in place. Begin by connecting the heater control and accessory assembly through 3 screws and finally put in the instrument cluster finish panel sub-assembly center by matching connectors while attaching clips and claw and screwing in 4 pieces. The procedure ends with the installation of heater control knobs followed by attachment of the No. 1 and No. 2 instrument cluster finish panel garnishes and battery cable connection to the negative terminal before system initialization for post-battery-reconnect requirements.
• Switch
  87290-52040
  Q: How to replace the A/C Switch in the Heater or Boost Ventilator Control Assembly on Scion xA?

  A:

  The procedure for replacing either the Heater or Boost Ventilator Control Assembly begins by removing Instrument Cluster Finish Panel Garnish No.2 and No.1 and proceeding to remove the 3 heater control knobs. The replacement of Instrument Cluster Finish Panel Sub Assembly CTR will require removing four screws while dislodging four clips along with a claw and disconnecting the connectors. The installer must detach the Heater Control & Accessory Assembly by disengaging three claws while disconnecting it. They should use a screwdriver to free the defroster damper control cable sub assembly and the air mix damper control cable sub assembly from the cable clamp while ensuring the wires remain unbent to avoid operational interference. Use screws to tape the tip of the screwdriver before operating it to prevent damage. First disconnect the air inlet damper control lever by unclipping the claw followed by disassembling the heater switch assembly through 2 screws removal. The next step requires you to eliminate the Heater or Boost Ventilator Control Assembly. When installing the component you must connect the inner cable end of the air mix damper control cable sub assembly to the heater control & accessory assembly before fastening the outer cable on the cable clamp. Keep the cable wires straight to prevent operational failures. Verify that the heater control knob receives complete resistance throughout its MAX. COOL and MAX. HOT positions. COOL and MAX. Test that the heater control knob stops at both MAX. HOT and MAX. COOL positions without cable recoil alongside an assessment of the outer cable not disconnecting when pulled. The inner cable end of the defroster damper control cable sub assembly should be attached to the heater control lever before securing the outer cable on the cable clamp. Connect the connector before installing the heater control & accessory assembly by verifying the cable wire maintains its straight alignment and checking for correct heater control knob position at FACE and DEF ends without recoil effect and that outer cable engagement when pulled.