PRECAUTION REGARDING FAIL SAFE FUNCTIONS TCM has the electrical fail safe mode. The mode functions so that the operation can be continued even if the signal circuit of the main electronically controlled input/output parts is damaged. Even if the electronic circuit is normal, the fail safe mode may start under special conditions (such as when the brake pedal is depressed suddenly from a hard wheel spin status to stop rotation of wheels). In this case, turn the ignition switch OFF and back to ON after 5 seconds to resume the normal shift pattern.
Consequently, the customer's vehicle may already returns to normal condition. Refer to Work Flow (GT-R certified NISSAN dealer). Following are results of self-diagnosis.
FAIL SAFE FUNCTION
If a malfunction occurs in either of the sensors or solenoids, this function controls the normal operation without downgrading the drivability.

DTC No. | The transmission operates under the fail safe mode
P0601 P0604 P0605 P0607 P0613
P0705
Release the clutches A and B if an error is detected. The driving force is not transmitted caused by this. The vehicle cannot be driven.
P0882 P0985 P0986 | Driving gear | Fixed into the driving gear to get the vehicle driven, if an error occurs.

- When the vehicle starts again after it is stopped, it becomes the following conditions.

Driving gear when the error occurs | Restart
1GR | Possible to drive forward only (fixed into 1GR)
2GR | Only moving forward is possible (fixed into 2GR)
3GR, 4GR, 5GR, 6GR, Neutral, Not identified | Impossible
Reverse | Only moving rearward is possible (fixed into Reverse gear)
Driving mode |

- The M range driving is prohibited. (During M range driving, the vehicle is forcibly shifted to the A range driving)
- Selecting the set-up switch is prohibited. (If SNOW or R is selected, the vehicle is forcibly set to Normal)

Vehicle speed | The engine torque is restricted by the driving gear when the error occurs, and then the vehicle speed (maximum speed) is restricted.
Driving gear when the error occurs | Vehicle speed　km/h (MPH)
1GR, 2GR | 46 (29)
3GR, 4GR | 85 (53)
5GR, 6GR | 134 (84)
Reverse | 46 (29)
Neutral | 134 (84)
Not identified | 46 (46)
P0607 P06B0 P0715 P0746 P0747
P0748
P0797
P0798
P0842
P0843
P0973
P0974
P0976
P0977
P2832
P2833
P2834
P2837
P2838
P2839
P2845
P2846
P2849
P284A
Driving gear

- Release the clutch A and prohibit the using of even gears (2GR, 4GR, and 6GR).
- During driving, shift up or down to the next gear (odd gear) according to the driving conditions, and then shift the gear and drive the vehicle using the odd gears (1GR, 3GR, 5GR, and Reverse gear).

- Shift to 5GR after decelerating the vehicle speed to prevent over rev during driving at 6GR.

Driving mode |

- The M range driving is prohibited. (During M range driving, the vehicle is forcibly shifted to the A range driving).
- Selecting the set-up switch is prohibited. (If SNOW or R is selected, the vehicle is forcibly set to Normal).

Vehicle speed | The engine torque is restricted by the driving gear when the error occurs, and then the vehicle speed (maximum speed) is restricted.
Driving gear when the error occurs | Vehicle speed　km/h (MPH)
2GR | 46 (29)
4GR | 85 (53)
6GR | 134 (84)
Neutral | 134 (84)
Not identified | 46 (29)
P0607 P06B0 P0776 P0777 P0778
P0847
P0848
P0979
P0980
P0982
P0983
P17C0
P17C1
P17C5
P2715
P2716
P2765
P283C
P283D
P283E
P2841
P2842
P2843
P2847
P2848
P284B
P284C
Driving gear

- Release the clutch B and prohibit the using of odd gears (1GR, 3GR, 5GR) and reverse gear.
- During driving, shift up or down to the next gear (even gear) according to the driving conditions, and then shift the gear and drive the vehicle using the even gears (2GR, 4GR, 6GR).

- Shift to the neutral conditions when the error is detected during driving at reverse gear.
- Shift to 2GR when the error is detected during driving at 1GR.

Driving mode |

- The M range driving is prohibited. (During M range driving, the vehicle is forcibly shifted to the A range driving.)
- Selecting the set-up switch is prohibited. (If SNOW or R is selected, the vehicle is forcibly set to Normal.)

Vehicle speed | The engine torque is restricted by the driving gear when the error occurs, and then the vehicle speed (maximum speed) is restricted.
Driving gear when the error occurs | Vehicle speed　km/h (MPH)
1GR | 46 (29)
3GR | 85 (53)
5GR | 134 (84)
Reverse | 46 (29)
Neutral | 134 (84)
Unknown | 46 (29)
U0100 P0607 P06B0 P0705 P1705
P1725
P2637
P2641
Driving gear
The use of all gears becomes possible.
Driving mode |

- The M range driving is prohibited. (During M range driving, the vehicle is forcibly shifted to the A range driving.)
- Selecting the set-up switch is prohibited. (If SNOW or R is selected, the vehicle is forcibly set to Normal.)

Vehicle speed | Restrict or fix the engine torque and fix the throttle position according to the detected DTC.
DTC | Engine torque | Throttle position
U0100 | Fixed | Approximately 1/8 fixed
P0607 | Restricted | As per usual
P06B0 | Restricted | As per usual
P0705 | Restricted | As per usual
P1705 | Restricted | Approximately 1/8 fixed
P1725 | Restricted | As per usual
P2637 | Fixed | As per usual
P2641 | Fixed | As per usual