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REFRIGERANT PRESSURE SENSOR
EC-845
[QR (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic Procedure EBS0114W
1. CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower switch ON.
3. Check voltage between ECM terminal 69 and ground with CON-
SULT-II or tester.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
46 R
Sensor power supply
(Refrigerant pressure sensor)
[Ignition switch: ON] Approximately 5V
57 B
Sensor ground
(Intake air temperature sensor/
Power steering pressure sensor/
Refrigerant pressure sensor)
[Engine is running]
● Warm-up condition
● Idle speed
Approximately 0V
69 L Refrigerant pressure sensor
[Engine is running]
● Warm-up condition
● Both A/C switch and blower switch are ON.
(Compressor operates.)
1.0 - 4.0V
Voltage: 1.0 - 4.0V
MBIB0035E
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