Toyota Prius 2010 Repair Manual page 52

TERMINALS OF ECU
1. A/C AMPLIFIER
HINT:
Check from the rear of the connector while it is connected to the A/C amplifier.
Terminal No.
Wiring
Color
(Symbol)
L17-1 (IG+) -
B - W-B Power source (IG)
L17-14 (GND)
L17-1 (IG+) -
B - W-B Power source (IG)
L17-14 (GND)
L17-5 (TAM)
- L17-13 (SG- BE - G
2)
L17-5 (TAM)
- L17-13 (SG- BE - G
2)
L17-9 (PRE) -
L - G
L17-13 (SG-2)
L17-9 (PRE) -
L - G
L17-13 (SG-2)
L17-9 (PRE) -
L - G
L17-13 (SG-2)
L17-10 (S5-3)
- L17-13 (SG- B - G
2)
2010 Toyota Prius
Terminal Description
Ambient temperature
sensor signal
Ambient temperature
sensor signal
A/C pressure sensor
signal
A/C pressure sensor
signal
A/C pressure sensor
signal
Power supply for A/C
pressure sensor
Condition
Power switch on (IG)
Power switch off
Power switch on (IG)
Ambient temperature: 25°C (77°F)
Power switch on (IG)
Ambient temperature: 40°C (104°F)
Engine started, A/C system operating,
Refrigerant pressure: Abnormal pressure
(more than 3140 kPa (32.0 kgf/cm
psi))
Engine started, A/C system operating,
Refrigerant pressure: Abnormal pressure
(less than 196 kPa (2.0 kgf/cm
Engine started, A/C system operating,
Refrigerant pressure: Normal pressure (less
than 3140 kPa (32.0 kgf/cm
more than 196 kPa (2.0 kgf/cm
Power switch on (IG)
A/C switch on
Specified
Condition
11 to 14 V
Below 1 V
1.35 to 1.75
0.9 to 1.2 V
4.84 V or
2
, 455 higher
Below 0.73
2
, 28 psi))
0.73 to 4.84
2
, 455 psi) and
2
, 28 psi))
4.75 to 5.25
Repair Manual
V
V
V
V