Subaru Impreza 2002 Service Manual page 3249

DIAGNOSTIC PROCEDURE FOR SENSORS
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
D: SUNLOAD SENSOR
TROUBLE SYMPTOM:
• Sensor identified that sunlight is at maximum. Then, A/C system is controlled to COOL side.
• Sensor identified that sunlight is at minimum. Then, A/C system is controlled to HOT side.
NOTE:
When the sunload sensor is checked indoors or in the shade, open circuit might be indicated. Always check
the sunload sensor at a place where sun shines directly on it.
WIRING DIAGRAM:
i51
AUTO A/C
A: B:
B282 B283
CONTROL MODULE
B:
i51 B283
1 2 3 4 5 6 7 8 9 10
1 2
11 12 13 14 15 16 17 18 19 20
HV0043
AC-44