Nissan Versa (N17): P1586 G Sensor

DTC Logic

DTC DETECTION LOGIC

DTC	Trouble diagnosis name	DTC detection condition	Possible causes
P1586	G Sensor Circuit Electrical	When the following diagnosis conditions are satisfied and the detection conditions are satisfied twice in the same DC: - Diagnosis conditions - While driving - TCM power supply voltage: More than 11 V - Detection condition - The G sensor detection voltage is 0.7 V or less continuously for 5 seconds or more.	- Harness or connector (G sensor circuit) - G sensor
		When the following diagnosis conditions are satisfied and the detection conditions are satisfied twice in the same DC: - Diagnosis conditions - While driving - TCM power supply voltage: More than 11 V - Detection condition - The G sensor detection voltage is 3.2 V or more continuously for 5 seconds or more

NOTE: DC stands for "DRIVING CYCLE" and indicates a series of driving cycle of "Ignition switch OFF → ON → driving → OFF".

DTC CONFIRMATION PROCEDURE

CAUTION: Be careful of the driving speed.

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

With CONSULT

1. Start the engine.
2. Drive the vehicle for 10 seconds or more.
3. Stop the vehicle.

   CAUTION: Never stop the engine.

4. Repeat step 2 through 3.
5. Check the DTC.

Is "P1586" detected?

YES >> Go to TM "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK G SENSOR SIGNAL

With CONSULT

1. Park the vehicle on a level surface.
2. Turn ignition switch ON.
3. Select "Data Monitor" in "TRANSMISSION".
4. Select "G SEN SLOPE".
5. Swing the vehicle and check if value varies between −40.45% and 40.45%.       

Is the inspection result normal?

YES >> GO TO 2.

NO >> GO TO 3.

2.G SENSOR CALIBRATION (PART 1)

With CONSULT

1. Select "Self Diagnostic Results" in "TRANSMISSION".
2. Touch "Erase".

>> Perform "G SENSOR CALIBRATION". Refer to TM "Work Procedure".

3.CHECK SENSOR POWER SUPPLY

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

Is the inspection result normal?

YES >> GO TO 4.

NO >> GO TO 8.

4.CHECK CIRCUIT BETWEEN TCM AND G SENSOR (PART 1)

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

Is the inspection result normal?

YES >> GO TO 5.

NO >> Repair or replace malfunctioning parts.

5.CHECK CIRCUIT BETWEEN TCM AND G SENSOR (PART 2)

Check continuity between TCM harness connector terminals and ground.   

Is the inspection result normal?

YES >> GO TO 6.

NO >> Repair or replace malfunctioning parts.

6.CHECK G SENSOR

1. Remove G sensor. TM "Removal and Installation".
2. Connect the all connectors.
3. Turn ignition switch ON.
4. Check voltage between TCM harness connector terminal and ground.

: Direction of gravitational force

Is the inspection result normal?

YES >> GO TO 7.

NO >> Replace G sensor.TM "Removal and Installation".

7.G SENSOR CALIBRATION (PART 2)

With CONSULT

1. Install G sensor. TM "Removal and Installation".
2. Select "Self Diagnostic Results" in "TRANSMISSION".
3. Touch "Erase".

>> Perform "G SENSOR CALIBRATION". Refer to TM "Work Procedure".

8.CHECK SENSOR POWER SUPPLY CIRCUIT (PART 1)

1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM harness connector terminal and G sensor harness connector terminal.

Is the inspection result normal?

YES >> GO TO 9.

NO >> Repair or replace malfunctioning parts.

9.CHECK SENSOR POWER SUPPLY CIRCUIT (PART 2)

Check continuity between TCM harness connector terminal and ground.   

Is the inspection result normal?

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

NO >> Repair or replace malfunctioning parts.