Troubleshooting by Remote Controller
Si20-701_B
155
Note:
∗
1: Make a comparison between the voltage of the
pressure sensor and that read by the pressure gauge.
(As to the voltage of the pressure sensor, make
measurement of voltage at the connector, and then
convert it to pressure according to information on
P.471.)
∗
2: Make a comparison between the high pressure value
checked with the Service Checker and the voltage of
the pressure sensor (
∗
1).
∗
3: Make measurement of voltage of the pressure
sensor.
Refer to P.483.
A
· The high pressure sensor is normal, and the
pressure detected with the PCB is also normal.
· The high pressure has really become high.
Remove the causes by which the high
pressure has become high.
CHECK 14
+5V
Connector for high
pressure sensor (Red)
Micro-computer
A/D input
Make measurement of DC
voltage between these wires.
(4)
(3)
(2)
(1)
Red
Black
White
High
pressure
sensor
CHECK 14