Nissan Sentra manuals

Nissan Sentra Service Manual: Refrigerant pressure sensor

Nissan Sentra Service Manual / Engine / Engine control system / Dtc/circuit diagnosis / Refrigerant pressure sensor

Component Function Check

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 fan switch ON.
  3. Check the voltage between ECM harness connector terminals.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Proceed to EC-465, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY

  1. Turn ignition OFF.
  2. Disconnect refrigerant pressure sensor harness connector.
  3. Turn ignition switch ON.
  4. Check the voltage between refrigerant pressure sensor harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

2.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connector.


  1. Also check harness for short to ground.

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.

NO >> Repair or replace error-detected parts.

3.CHECK REFRIGERANT PRESSURE SENSOR GROUND

  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connector.


  1. Also check harness for short to power.

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair or replace error-detected parts.

4.CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT

  1. Check the continuity between ECM harness connector and refrigerant pressure sensor harness connector.


  1. Also check harness for short to ground and to power.

Is the inspection result normal? YES >> GO TO 5.

NO >> Repair or replace error-detected parts.

5.CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to GI-39, "Intermittent Incident".

Is the inspection result normal? YES >> Replace refrigerant pressure sensor. Refer to HAC-110, "Removal and Installation" (For automatic air condittioner), or HAC-191, "Removal and Installation" (For manual air condittioner).

NO >> Repair or replace error-detected parts.

Cooling fan
Component Function Check 1.CHECK COOLING FAN FUNCTION With CONSULT Turn ignition switch ON. Perform “FAN” in “ACTIVE TEST” mode of “ENGINE” using CONSULT Check ...

Malfunction indicator lamp
Component Function Check 1.CHECK MIL FUNCTION Turn ignition switch ON. Check that MIL lights up. Is the inspection result normal? YES >> INSPECTION END NO >> Proceed to EC-467, ...

Other materials:

Avoiding collision and rollover
WARNINGFailure to operate this vehicle in a safe and prudent manner may result in loss of control or an accident. Be alert and drive defensively at all times. Obey all traffic regulations. Avoid excessive speed, high speed cornering, or sudden steering maneuvers, because these ...

License lamp finisher
Exploded view Rear view camera Trunk lid opener request switch License lamp finisher Clip Pawl Removal and installation Remove trunk lid finisher. Refer to INT-45, "Removal and Installation". Disconnect the harness connector (A) from trunk lid opener request swit ...

Rear window defogger and door mirror defoggers do not operate
Diagnosis procedure Regarding Wiring Diagram information, refer to DEF-20, "Wiring Diagram". 1. Check rear window defogger switch Check rear window defogger switch. Refer to def-30, "component function check". Is the inspection result normal? Yes >> go to 2. No ...

© 2014-2025 Copyright www.nisentra.com