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Home >> Nissan-Datsun >> 2020 >> Sentra S >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> System Description >> System >> CVT Control System >> Fail-safe >> Fail-safe function
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Fail-safe function

TCM has a fail-safe mode. The mode functions so that operation can be continued even if the signal circuit of the main electronically controlled input/output parts is damaged.

If the vehicle shows following behaviors including "poor acceleration", a malfunction of the applicable system is detected by TCM and the vehicle may be in a fail-safe mode. At this time, check the DTC code and perform inspection and repair according to the malfunction diagnosis procedures.

DTC

Vehicle behavior

Conditions of vehicle

P0605

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P062F

Not changed from normal driving

--

P0705

  • Shift position indicator on combination meter is not displayed
  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0706

  • Shift position indicator on combination meter is not displayed
  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0711

  • Start is slow
  • Acceleration is slow

Temp. < 10 deg.C (50 deg.F)

  • Selector shock is large
  • Start is slow
  • Acceleration is slow

-35 deg.C (-31 deg.F) Temp. < 10 deg.C (50 deg.F)

  • Selector shock is large
  • Start is slow
  • Acceleration is slow

Temp. <-35 deg.C (-31 deg.F)

P0712

  • Start is slow
  • Acceleration is slow

Temp. < 10 deg.C (50 deg.F)

  • Selector shock is large
  • Start is slow
  • Acceleration is slow

-35 deg.C (-31 deg.F) Temp. < 10 deg.C (50 deg.F)

  • Selector shock is large
  • Start is slow
  • Acceleration is slow

Temp. <-35 deg.C (-31 deg.F)

P0713

  • Start is slow
  • Acceleration is slow

Temp. < 10 deg.C (50 deg.F)

  • Selector shock is large
  • Start is slow
  • Acceleration is slow

-35 deg.C (-31 deg.F) Temp. < 10 deg.C (50 deg.F)

  • Selector shock is large
  • Start is slow
  • Acceleration is slow

Temp. <-35 deg.C (-31 deg.F)

P0715

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0716

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0717

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0718

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0740

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0741

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0742

  • Start is slow
  • Engine stops when shift to "D" position during stopping the vehicle

--

P0743

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0746

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0776

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed
  • Vehicle speed is not increased

When a malfunction occurs on the low oil pressure side

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

When a malfunction occurs on the high oil pressure side

P0778

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0779

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0791

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0792

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0793

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0794

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0841

Not changed from normal driving

--

P0847

Not changed from normal driving

--

P0848

Not changed from normal driving

--

P084C

Not changed from normal driving

--

P084D

Not changed from normal driving

--

P0863

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0890

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed
  • Vehicle speed is not increased

--

P0962

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0963

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0965

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

When a malfunction occurs on the low oil pressure side

  • Selector shock is large
  • Lock-up is not performed

When a malfunction occurs on the high oil pressure side

P0966

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P0967

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P17F0

Not changed from normal driving

--

P17F1

Not changed from normal driving

--

P17F2

Not changed from normal driving

--

P2758

  • Start is slow
  • Engine stops when shift to "D" position during stopping the vehicle

--

P2765

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P2766

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P2767

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P2768

  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

P2813

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Vehicle speed is not increased

When a malfunction occurs on the low oil pressure side

Selector shock is large

When a malfunction occurs on the high oil pressure side

P2814

Selector shock is large

--

P2815

Selector shock is large

--

U0073

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

U007A

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

U0100

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

U0115

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

U0140

Not changed from normal driving

--

U0141

Not changed from normal driving

--

U0155

Not changed from normal driving

--

U0164

Not changed from normal driving

--

U0300

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

U1000

Not changed from normal driving

--

U1112

Not changed from normal driving

--

U1117

Not changed from normal driving

--

U2140

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

U2148

Not changed from normal driving

--

U214F

Not changed from normal driving

--

U2153

Not changed from normal driving

--

U215B

Not changed from normal driving

--

U2240

  • Selector shock is large
  • Start is slow
  • Acceleration is slow
  • Lock-up is not performed

--

U2252

Not changed from normal driving

--

U2276

Not changed from normal driving

--