Nissan Rogue (T33) 2021-Present Service Manual: Refrigerant Pressure Sensor
Component Function Check
CHECK REFRIGERANT PRESSURE SENSOR FUNCTION
-
Start engine and warm it up to normal operating temperature.
-
Turn A/C switch and blower fan switch ON.
-
Check the voltage between ECM harness connector terminals under the following conditions.
ECM Voltage Connector + – Terminal F71 74 105 1.0 – 4.0 V
Is the inspection result normal?
YES>>INSPECTION END
NO>>Refer to Diagnosis Procedure.
Diagnosis Procedure
CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY
-
Turn ignition switch OFF.
-
Disconnect refrigerant pressure sensor harness connector.
-
Turn ignition switch ON.
-
Check the voltage between refrigerant pressure sensor harness connector and ground.
+ − Voltage
(Approx.)Refrigerant pressure sensor Connector Terminal E33 1 Ground 5 V
Is the inspection result normal?
YES>>GO TO 3.
NO>>GO TO 2.
CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
-
Turn ignition switch ON.
-
Disconnect ECM harness connector.
-
Check the continuity between refrigerant pressure sensor harness connector and ECM harness connector.
Refrigerant pressure sensor ECM Continuity Connector Terminal Connector Terminal E33 1 F71 79 Existed -
Also check harness for short to power.
Is the inspection result normal?
YES>>Perform trouble diagnosis for power supply circuit.
NO>>Repair or replace malfunctioning part.
CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT
-
Check the continuity between refrigerant pressure sensor harness connector and ECM harness connector.
Refrigerant pressure sensor ECM Continuity Connector Terminal Connector Terminal E33 3 F71 105 Existed -
Also check harness for short to power.
Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace malfunctioning part.
CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT
-
Check the continuity between refrigerant pressure sensor harness connector and ECM harness connector.
Refrigerant pressure sensor ECM Continuity Connector Terminal Connector Terminal E33 2 F71 74 Existed -
Also check harness for short to power.
Is the inspection result normal?
YES>>GO TO 5.
NO>>Repair or replace malfunctioning part.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to Intermittent Incident.
Is the inspection result normal?
YES>>Replace refrigerant pressure sensor. Refer to Removal and Installation.
NO>>Repair or replace malfunctioning part.
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