CHECK AT ECU TERMINAL

Terminal No.	Check item	Checking requirement	Normal condition
1	Rear window defogger switch	Rear window defogger switch: ON	0 V
1	Rear window defogger switch	Rear window defogger switch: OFF	System voltage
2	Inside/outside air changeover damper motor (outside air)	When the damper is moved to the inside air recirculation position	0 V
2	Inside/outside air changeover damper motor (outside air)	When the damper is moved to the outside air inside air intake position	System voltage
3	Inside/outside air changeover damper motor (inside air)	When the damper is moved to the inside air recirculation position	System voltage
3	Inside/outside air changeover damper motor (inside air)	When the damper is moved to the outside air inside air intake position	0 V
4	Output to the engine-A/T-ECU (A/C1)	A/C stopped	0 V
4	Output to the engine-A/T-ECU (A/C1)	A/C switch: ON Blower switch: ON	System voltage
5	Output to the engine-A/T-ECU (A/C2)	When the A/C is under low load	System voltage
5	Output to the engine-A/T-ECU (A/C2)	When the A/C is under high load	0 V
6	Power supply to the A/C illumination	Lighting switch: ON	System voltage
7	-	-	-
8	Blower switch (lo)	blower switch: lo	System voltage
9	-	-	-
10	Power supply to the ignition switch (IG2)	Ignition switch: ON	System voltage
11	Earth to the A/C illumination	Always	0 V
12	Earth	Always	0 V
13	Air thermo sensor (outlet side)	Sensor probe temperature 25°C (1.5k ohm)	2.2 V
14	Air thermo sensor (inlet side)	Sensor probe temperature 25°C (1.5k ohm)	2.2 V
15	-	-	-
16	Earth to the air thermo sensor	Always	0 V