| Troubleshooting |

Removal 1. Remove the air duct (A). 2. Disconnect the battery (-) terminal (A)and then (+) terminal (B). 3. Remove the battery mounting bracket (D) and the insulation pad (C), and then remove the battery (E).
Description Vehicles have many control units that use more electricity. These units control their own system based on information from diverse sensors.
Inspection 1. Ignition "ON" 2. Using the scan tool. 3. Emit intensive light toward photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and reduce with lower intensive light.
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.