Subaru IMPREZA GD 2007 Series Manual page 3872

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4. Auto A/C Control Module I/O Signal
A: ELECTRICAL SPECIFICATION
8
16 15 14 13 12 11
Contents
Battery power supply
(memory back-up)
Ignition power supply
ACC power supply
A/C control module ground circuit
Sensor ground circuit
Ambient sensor
Evaporator sensor
Engine coolant temperature sensor
Sunload sensor
Air mix door actuator
Air mix door actuator P.B.R.
Mode door actuator
Mode door actuator P.B.R.
Intake door FRS voltage
Intake door CIRC voltage
Blower fan relay
A/C relay
Illumination control signal
Rear window defogger
Auto A/C Control Module I/O Signal
7 6 5 4 3 2 1
10 9
TO A: B282
Connector &
Terminal No.
Battery voltage
B1 — B12
13 — 14 (engine running)
Battery voltage (ignition switch ON)
A8 — B12
13 — 14 (engine running)
B2 — B12 Battery voltage, 0 (engine cranking), Battery voltage (engine running)
B12 — chassis
0 (ignition switch ON) — circuit constantly grounded to chassis
ground
B17 — chassis
0 (ignition switch ON) — circuit constantly grounded to chassis
ground
B9 — B17
B7 — B17 Approx. 5 (disconnect connector, and the ignition switch is ON)
B15 — B12
B16 — B17 Approx. 5 (disconnect connector, and the ignition switch is ON)
B5 — chassis
Battery voltage (ignition switch ON)
ground
A4 — B17 LAN communication
B6 — chassis
Battery voltage (ignition switch ON)
ground
A12 — B17 LAN communication
A15 — A7 Battery voltage (FRESH/RECIRC switch OFF)
A7 — A15 Battery voltage (FRESH/RECIRC switch ON)
B14 — chassis
Battery voltage (ignition switch ON)
ground
B3 — chassis 0 (ignition and A/C switches ON)
ground Battery voltage (A/C switch OFF)
B10 — B20 Battery voltage (ignition and lighting switches ON)
A13 — chassis
0 (ignition switch ON, rear window defogger switch ON)
ground
AC(diag)-7
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
10 9 8 7 6 5 4 3 2 1
20 19 18 17 16 15 14 13 12 11
TO B: B283
Signal (V)
AC-00735