advertisement
Auto A/C Control Module I/O Signal
HVAC SYSTEM (AUTO A/C)(DIAGNOSTIC)
4. Auto A/C Control Module I/O Signal
A: ELECTRICAL SPECIFICATION
10
20
9
19
8
18
7
17
6
16
5
15
4
14
3
13
2
12
1
11
To B: i49
8
16
7
15
6
14
5
13
4
12
3
11
2
10
1
9
To A: i48
AC-00099
Terminal No.
B9
B8
B7
B6
B5
B4
B3
B2
B1
B20
B19
B18
B17
B16
B15
B13
B12
B11
A7
A5
A4
A1
A16
Content Measuring condition
Mode door actuator power supply
Air mix door actuator power supply
IGN power supply
Battery power supply
Sunload sensor
Changes outlet from VENT to DEF.
Changes outlet from DEF to VENT.
Changes air mix door from COOL to HOT.
Changes air mix door from HOT to COOL.
Ignition switch: ON
Ignition switch: OFF, ACC, ON
Ignition switch: ON and under normal sunload
(without sunload: 5 V)
Evaporator sensor
Air mix door actuator P.B.R. signal
Intake door actuator signal
Ignition switch: ON
Air mix door: COOL position
Air mix door: HOT position
Air inlet: FRESH (other positions: 12 V)
Air inlet: MIX (other positions: 12 V)
Air inlet: RECIRC (other positions: 12 V)
A/C: ON (A/C OFF: 0 V)
*3
A/C ON signal
Blower motor control
Blower fan ON signal
Engine coolant temperature sensor
In-vehicle sensor
Ground
When blower fan running (when blower fan not running: 12 V)
When the engine coolant is at 49
°C (120°F)
—
When there is continuity to chassis ground
Air mix door actuator P.B.R. reference voltage Ignition switch: ON
Mode door actuator position detection signal Outlet
BI-LEVEL, DEF
VENT, HEAT, DEF/HEAT
HEAT, DEF/HEAT, DEF
Mode door actuator position detection signal Outlet
VENT, BI-LEVEL
Ignition switch: ON, light switch: ON
Illumination power supply
Ignition switch: ON, light switch: OFF
Sensor ground When there is continuity to chassis ground
Specified value
*2
*1
Battery voltage
Battery voltage
3 V
5 V or less
0.5 V
4.5 V
0 V
0 V
0 V
8 — 10 V
*3
0 V
8.9 V
—
0
Ω
5 V
5 V
0 V
5 V
0 V
Battery voltage
0 V
0
Ω
AC-7
Auto A/C Control Module I/O Signal
HVAC SYSTEM (AUTO A/C)(DIAGNOSTIC)
Terminal No.
Content Measuring condition
Specified value
A14
Combination meter (ambient temperature signal)
*3 *3
A13
A12
Mode door actuator position detection signal
Mode door actuator position detection signal
Outlet
Outlet
VENT, BI-LEVEL, HEAT
DEF/HEAT, DEF
VENT, DEF/HEAT
BI-LEVEL, HEAT, DEF
5 V
0 V
5 V
0 V
A10
A9
A/C cutout signal
Illumination ground
A/C: ON
Pressure switch operated
When there is continuity to chassis ground
Battery voltage
0 V
0
Ω
*1: Battery voltage is indicated when motor running, 0 V or battery voltage pulse signal is output when motor stops.
*2: Battery voltage is indicated when motor running, 0 V is indicated when motor stops.
*3: Voltage can not be measured because of pulse signal.
B: WIRING DIAGRAM:
<Ref. to WI-58, WIRING DIAGRAM, Air Conditioning System.>
AC-8
advertisement
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project