Aston Martin DB7 Workshop Manual page 308

"3^2? Air Conditioning
System Fault Diagnosis
M o d e Switch: Low - Function Switch: Manual
Low input 13
Clutch output- Evap sensor below 2.72V 20
Clutch output- Evap sensor above 2.72V 20
Medium input 14
High input 15
Defrost 27
From ON-OFF Switch. 44
Output 43
Recirc. output 3
HS Relays 16
Water valve solenoid 17
Centre vent solenoid 18
M o d e Switch: M e d i u m - Function Switch: Manual
Low input
Medium input
High input
Defrost
13
14
15
27
M o d e Switch: High Servo Motors Stationary - Function Switch: Manual
Low input 13
Medium input 14
High input 15
Defrost input 27
M o d e Switch: Defrost - Function Switch: Manual
Low input
Medium input
High input
Defrost input
13
14
15
27
M o d e Switch: Low, M e d i u m or High - Function Switch: Manual
Air Differential - cold face 28
Air Differential - hot face 28
M o d e Switch: Low, M e d i u m or High - Function Switch: Manual
Temp. Maximum demand 35
Temp. Minimum demand 35
150 to 350mV
0.6V
11.4V
3 t o 5 V
3 t o 5 V
3 t o 5 V
10.3 to 13.3V
4.73 to 5.2V
0 to 200mV
0 to 200mV
0 to 200mV
0 to 200 mV
3 t o 5 V
150 to 350mV
3 t o 5 V
3 t o 5 V
3 t o 5 V
3 t o 5 V
150 to 350V
3 t o 5 V
3 t o 5 V
3 t o 5 V
3 t o 5 V
150 to 350mV
2.665 to 3.105V
0 to 200mV
2.665 to 3.105V
0 to 200mV
M o d e Switch: Low, M e d i u m or High Temperature Demand Switch: Mid-Range - Function Switch: A C
Servo motor lower flap 37 0 to 2.0V
Servo motor lower flap 41 0 to 2.0V
Servo motor upper flap 40 0 to 2.0V
Servo motor upper flap 42 0 to 2.0V
M o d e Switch: Low, M e d i u m or High Temperature Demand Switch: Mid-Range - Function Switch: A C
Servo motor lower flap 37 7.0 to 9.5V
Servo motor lower flap 41 7.0 to 9.5V
Serve motor upper flap 40 7.0 to 9.5V
Servo motor upper flap 42 7.0 to 9.5V
May 1996
8-31