Nissan Sentra Service Manual: P0998 Shift solenoid F

Nissan Sentra Service Manual / Transmission & driveline / Transaxle & transmission / CVT: RE0F11A / 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 вЂњDTC CONFIRMATION PROCEDUREвЂќ 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

Start the engine
Shift the selector lever to вЂњDвЂќ position and wait for 5 seconds or more.
Check the first trip DTC.

Is вЂњP0998вЂќ detected? YES >> Go to TM-210, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK CIRCUIT BETWEEN TCM AND CVT UNIT

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

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.

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".

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P0999 Shift solenoid F

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Other materials:

Telescopic operation
Pull the lock lever down 1 and adjust the steering wheel forward or backward 3 to the desired position. Push the lock lever up 1 firmly to lock the steering wheel in place. WARNINGDo not adjust the steering wheel any closer to you than is necessary for proper steering operation a ...

Consult function
FUNCTION Diagnostic test mode Function Self Diagnostic Results Self-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data can be read and erased quickly.* Data Monitor Input/Output data in the ECM can be read. ...

Normal operating condition
Description Symptom Result Slight vibrations are felt on the brake pedal and operation noises occur when VDC, TCS or ABS is activated. This is a normal condition due to the VDC, TCS or ABS activation. Stopping distance is longer than that of vehicles without ...