Nissan Sentra manuals

Nissan Sentra Service Manual: 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:

P2118 Throttle control motor
DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P2118 ETC MOT-B1 (Throttle actuator control motor current range/ performance) ECM detects short in both circuits between ECM a ...

Vehicle security system (if so equipped)
The vehicle security system provides visual and audible alarm signals if someone opens the doors when the system is armed. It is not, however, a motion detection type system that activates when a vehicle is moved or when a vibration occurs. The system helps detect vehicle theft but cannot prev ...

Circuit Inspection
DESCRIPTION In general, testing electrical circuits is an easy task if it is approached in a logical and organized method. Before beginning it is important to have all available information on the system to be tested. Also, get a thorough understanding of system operation. Then you w ...

© 2014-2018 Copyright www.nisentra.com