Nissan Sentra manuals

Nissan Sentra Service Manual: P0998 Shift solenoid F

DTC Logic

DTC DETECTION LOGIC

DTC

CONSULT screen terms (Trouble diagnosis content)

DTC detection condition

Possible causes

P0998 SHIFT SOLENOID F (Shift Solenoid F Control Circuit Low) The TCM low brake solenoid valve current monitor reading is 200 mA or less continuously for 480 msec or more under the following diagnosis conditions:

Diagnosis conditions

  • Solenoid valve output current: 750 mA or more
  • GND short circuit diagnosis occurs in the solenoid valve drive circuit.
  • TCM power supply voltage: More than 11 V
  • Harness or connector (Low brake solenoid valve circuit shorted to ground)
  • Low brake solenoid valve

DTC CONFIRMATION PROCEDURE

1.PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>> GO TO 2.

2.CHECK DTC DETECTION

  1. Start the engine
  2. Shift the selector lever to “D” position and wait for 5 seconds or more.
  3. Check the first trip DTC.

Is “P0998” detected? YES >> Go to TM-210, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK CIRCUIT BETWEEN TCM AND CVT UNIT

  1. Turn ignition switch OFF.
  2. Disconnect TCM connector and CVT unit connector.
  3. Check continuity between TCM harness connector terminal and ground.

result normal? Is the inspection
result normal? YES >> GO TO 2.

NO >> Repair or replace malfunctioning parts.

 

2.CHECK LOW BRAKE SOLENOID VALVE

Check low brake solenoid valve. Refer to TM-211, "Component Inspection".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".

NO >> Repair or replace malfunctioning parts.

Component Inspection

1.CHECK LOW BRAKE SOLENOID VALVE

Check resistance between CVT unit connector terminal and ground.

result normal? Is the inspection
result normal? YES >> INSPECTION END

NO >> There is a malfunction of low brake solenoid valve. Replace transaxle assembly. Refer to TM-283, "Removal and Installation".

P0967 Pressure control solenoid B
DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition Possible causes P0967 PC SOLENOID B (Pressure Control So ...

P0999 Shift solenoid F
DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition Possible causes P0999 SHIFT SOLENOID F (Shift Solenoid F ...

Other materials:

Compressor
Exploded view With air conditioning Compressor Front Without air conditioning A/c idler pulley A/c idler pulley bracket Compressor Compressor : removal and installation REMOVAL Discharge the refrigerant. Refer to ha-23, "recycle refrigerant". Remove the fr ...

Washer tank
Exploded view Washer tank inlet Washer tank Washer level switch Washer tank seal Washer pump Removal and installation REMOVAL Drain the washer fluid. Remove the front under cover. Refer to ext-30, "front under cover : removal and installation". Remove the fe ...

Idle speed
Inspection 1.CHECK IDLE SPEED With CONSULT Check idle speed in “DATA MONITOR” mode of “ENGINE” using CONSULT. Specification : EC-486, "Idle Speed" With GST Check idle speed with Service $01 of GST. Specification : EC-486, "Idle Speed" >> INSPEC ...

© 2014-2021 Copyright www.nisentra.com