DTC DETECTION LOGIC

DTC | Self-diagnosis name | DTC Detection Condition | Possible causes
P2845 | Shift fork "A" position sensor incorrect neutral position indicated | A DTC is set if the status of the sleeve A1 position of more than 1.7 mm (0.067 in) or less than −1.6 mm (−0.063 in) is detected for a certain period of time when the sleeve A1 position target is neutral with the sleeve A2 engaged in the 2nd or 4th gear.

- 6th-Neutral position sensor
- Shift solenoid valve 1
- Shift solenoid valve 2
- Sequence solenoid valve
- Harness or connector
  (Open or short in the 6th-Neutral position sensor circuit)
  (Open or short in the shift solenoid valve 1 circuit)
  (Open or short in the shift solenoid valve 2 circuit)
  (Open or short in the sequence solenoid valve circuit)

DTC CONFIRMATION PROCEDURE
■ CAUTION ■

- If CONSULT-III is not available, “Diagnosis Procedure (GT-R certified NISSAN dealer)” must be performed before starting “DTC CONFIRMATION PROCEDURE”.
- If CONSULT-III is not available, never perform “DTC CONFIRMATION PROCEDURE” before completing the repair, which may cause secondary malfunction.
- Be careful of the driving speed.

1.PREPARATION BEFORE OPERATION (PART 1)
If another “DTC CONFIRMATION PROCEDURE” is performed just before the next test, turn the ignition switch OFF and wait for 10 seconds or more, then perform the next test.
>>GO TO 2.
2.PREPARATION BEFORE OPERATION (PART 2)
With CONSULT-III

1. Turn the ignition switch ON.
2. Select “FLUID TEMP” in “Data Monitor”.

Without CONSULT-III

1. Turn the ignition switch ON.
2. Check “TRANS OIL TEMP” on multi-function display.

Is the oil temperature −20°C (−4°F) or more?
YES>>GO TO 3.
NO>>Warm up the transmission.
3.PREPARATION BEFORE OPERATION (PART 3)
With CONSULT-III
Select “READ CLUTCH GEAR LEARNING DATA” in “Work support”.
Is the “6-N learning experienced” YES?
YES>>GO TO 4.
NO>>Perform “CLUTCH GEAR LEARNING”.
4.CONFIRMATION BEFORE OPERATION (PART 1)
With CONSULT-III
Select “SLEEVE A1 POSI” in “Data Monitor”.
Is the numeral value of the “SLEEVE A1 POSI” in the range between −1.7 and 1.8 mm (−0.067 and 0.071 in)?
YES>>GO TO 5.
NO>>GO TO 6.
5.CONFIRMATION BEFORE OPERATION (PART 2)
With CONSULT-III

1. Shift the shift lever to N position.
2. Start the engine.
3. Select “GEAR POSITION TEST” in “Work support”.
4. Select “GEAR6”.
   ■ CAUTION ■
   Never select “GEAR2”, “GEAR4” or “GEAR N”.

Does the sleeve A1 operate?
YES>>GO TO 6.
NO>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
6.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III

1. Select “RANGE” and “GEAR” in “Data Monitor”.
2. With the vehicle stationary, maintain the following conditions for 2 seconds or more.

   RANGE | : M
   GEAR | : 1

3. Check “Self Diagnostic Result” of “TRANSMISSION”.

Without CONSULT-III

1. With the vehicle stationary, maintain the following conditions for 2 seconds or more.

   Shift lever | : M range
   Gear | : 1

2. Check self-diagnosis.

Is DTC P2845 detected?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>Go to Intermittent Incident.