| Circuit diagram |

Removal 1. Remove the negative (-) battery terminal. 2. Remove the driver seat in the car. (Refer to Body - "Front Seat") 3. Remove the IMS module (A) after loosening 3 screws in the bottom of seat.
Inspection 1. Disconnect the IMS control switch connector. 2. With the power IMS control switch in each position, make sure that continuity exists between the terminals below.
Inspection 1. Press the OFF switch more then 4 times within 2 seconds while pressing the MODE switch. DisplayFail description00Normal23Auto defog sensor OPEN24Auto defog sensor SHORT43Defog door potentiometer OPEN/SHORT44Defog door potentiometer * Diagnostic procedure refer to DTC code.
Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower unit.(Refer to HA group – heater unit). 3. Remove the blower unit (A) from the heater unit after loosening a mounting bolt and 3 screws. Make sure that there is no air leaking out of the blower and duct joints.