Blower Check
BLOWER CHECKError Diagnostics:
Perform the blower check in manual blower running state because it is difficult to check blower at automatic control. Blower is controlled from level I to level 7 equally as in button operation and running logic. In turning on IG, blower relay is ON and voltage of 0.1 to 1.4 V is transferred from FATC connector A-4 terminal to base source of power TR according to FATC control (selectable from level 1 to level 7). At this time, voltage of blower motor's both ends is determined according to collector voltage of FATC connector A-5 terminal. If FATC is controlled in level 7, GND (0 V) is supplied for FATC connector A-18 terminal and high blower relay is driven.