Toyota
Nissan Versa
 Sedan Service Manual
Transmission & driveline » Transaxle & transmission (TM) » P0848 Transmission fluid pressure SEN/SW B
Diagnosis Procedure

1.CHECK SECONDARY PRESSURE SENSOR POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect CVT unit connector.
  3. Turn ignition switch ON.
  4. Check voltage between CVT unit harness connector terminal and ground. 

Is the inspection result normal?

YES >> GO TO 2.

NO >> Repair or replace malfunctioning parts.

2.CHECK SECONDARY PRESSURE SENSOR SIGNAL CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect TCM connector.
  3. Check continuity between TCM harness connector terminals.   

Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair or replace malfunctioning parts.

3.CHECK TCM INPUT SIGNALS

  1. Connect all connectors removed.
  2. Start the engine.
  3. Check voltage between TCM harness connector terminal and ground. 

Is the inspection result normal?

YES >> Check intermittent incident. Refer to GI "Intermittent Incident".

NO >> There is a malfunction of secondary pressure sensor. Replace transaxle assembly. Refer to TM "Removal and Installation".

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