Nissan Versa Sedan. Manual — part 820

TM-186

< DTC/CIRCUIT DIAGNOSIS >

[4AT: RE4F03C]

P074A UNABLE TO ENGAGE 2GR

P074A UNABLE TO ENGAGE 2GR

Description

INFOID:0000000009267955

This malfunction is detected when the A/T does not shift into 2GR position as instructed by TCM. This is not

only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control

valve sticking, improper solenoid valve operation, etc.

DTC Logic

INFOID:0000000009267956

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

• “

TM-187, "Diagnosis Procedure"

” must be performed before starting “DTC CONFIRMATION PROCE-

DURE”.

• Never perform “DTC CONFIRMATION PROCEDURE” before completing the repair, which may cause

secondary malfunction.

• Always drive vehicle at a safe 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. Select “2ND GR FNCTN P0732” in “DTC & SRT confirmation” in “TRANSMISSION”.

NOTE:

“2ND GR FNCTN P0731” can be used in this diagnosis.

2. Drive vehicle according to the following conditions.

3. Keep the current driving status for 2 seconds or more if CONSULT screen changes from “OUT OFCONDI-

TION” to “TESTING”.

CAUTION:

When “TESTING” is not indicated on CONSULT for a long time, check “Self Diagnostic Results” in

“TRANSMISSION”. When a DTC other than “P074A” is detected, check the DTC. Refer to

TM-109,

"DTC Index"

.

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

P074A

Unable to Engage Gear 2

Under the following diagnosis
conditions, the gear ratio is
3.033 or more continuously for
2 seconds or more.
• Diagnosis condition
- Shifting is not in progress.
- Input speed: 300 rpm or more
- Output speed: 300 rpm or

more

- Engine speed: (Input speed –

50 rpm) or more

- Selector lever: 2 position
- Gear: 2GR
- Throttle position: 0.7/8.0 or

more

• Low clutch solenoid valve
• Control valve assembly

Selector lever

: 2 position

Gear

: 2GR

Accelerator pedal position

: 0.7/8 or more

Vehicle speed

: 5 km/h (4 MPH) or more

P074A UNABLE TO ENGAGE 2GR

TM-187

< DTC/CIRCUIT DIAGNOSIS >

[4AT: RE4F03C]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

With GST

1. Drive vehicle and maintain the following conditions for 2 seconds or more.

2. Check the first trip DTC.
Is “OUT OF CONDITION”, “STOP VEHICLE”, or “COMPLETED RESULT NG” displayed? / Is “P074A”

detected?

YES-1 (OUT OF CONDITION.)>>Perform “step 2” again.

YES-2 (STOP VEHICLE.)>>GO TO 3.

YES-3 (COMPLETED RESULT NG)>>Go to

TM-187, "Diagnosis Procedure"

.

YES-4 (“P074A” is detected.)>>Go to

TM-187, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

CHECK SYMPTOM

1. Stop the vehicle.

2. Drive vehicle in “D” position allowing it to shift from 1GR to 4GR and check shift timing and shift shock.

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267957

1.

MALFUNCTION CAUSE SIMULATION TEST

Refer to

GI-45, "Intermittent Incident"

.

Is the check result normal?

YES

>> Replace the transaxle assembly. Refer to

TM-250, "Removal and Installation"

.

NO

>> Repair or replace the malfunctioning parts.

Selector lever

: 2 position

Gear

: 2GR

Accelerator pedal position

: 0.7/8 or more

Vehicle speed

: 5 km/h (4 MPH) or more

TM-188

< DTC/CIRCUIT DIAGNOSIS >

[4AT: RE4F03C]

P074B UNABLE TO ENGAGE 3GR

P074B UNABLE TO ENGAGE 3GR

Description

INFOID:0000000009267958

This malfunction is detected when the A/T does not shift into 3GR position as instructed by TCM. This is not

only caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control

valve sticking, improper solenoid valve operation, etc.

DTC Logic

INFOID:0000000009267959

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION:

• “

TM-189, "Diagnosis Procedure"

” must be performed before starting “DTC CONFIRMATION PROCE-

DURE”.

• Never perform “DTC CONFIRMATION PROCEDURE” before completing the repair, which may cause

secondary malfunction.

• Always drive vehicle at a safe 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. Select “3RD GR FNCTN P0733” in “DTC & SRT confirmation” in “TRANSMISSION”.

NOTE:

“3RD GR FNCTN P0731” can be used in this diagnosis.

2. Drive vehicle according to the following conditions.

3. Keep the current driving status for 2 seconds or more if CONSULT screen changes from “OUT OFCONDI-

TION” to “TESTING”.

CAUTION:

When “TESTING” is not indicated on CONSULT for a long time, check “Self Diagnostic Results” in

“TRANSMISSION”. When a DTC other than “P074B” is detected, check the DTC. Refer to

TM-109,

"DTC Index"

.

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

P074B

Unable to Engage Gear 3

Under the following diagnosis
conditions, the gear ratio is
3.033 or more continuously for
2 seconds or more.
• Diagnosis condition
- Shifting is not in progress.
- Input speed: 300 rpm or more
- Output speed: 300 rpm or

more

- Engine speed: (Input speed –

50 rpm) or more

- Selector lever: D position
- Gear: 3GR
- Throttle position: 0.7/8.0 or

more

• Low clutch solenoid valve
• Control valve assembly

Selector lever

: D position (O/D OFF)

Gear

: 3GR

Accelerator pedal position

: 0.7/8 or more

Vehicle speed

: 20 km/h (13 MPH) or more

P074B UNABLE TO ENGAGE 3GR

TM-189

< DTC/CIRCUIT DIAGNOSIS >

[4AT: RE4F03C]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

With GST

1. Drive vehicle and maintain the following conditions for 2 seconds or more.

2. Check the first trip DTC.
Is “OUT OF CONDITION”, “STOP VEHICLE”, or “COMPLETED RESULT NG” displayed? / Is “P074B”

detected?

YES-1 (OUT OF CONDITION.)>>Perform “step 2” again.

YES-2 (STOP VEHICLE.)>>GO TO 3.

YES-3 (COMPLETED RESULT NG)>>Go to

TM-189, "Diagnosis Procedure"

.

YES-4 (“P074B” is detected.)>>Go to

TM-189, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

CHECK SYMPTOM

1. Stop the vehicle.

2. Drive vehicle in “D” position allowing it to shift from 1GR to 4GR and check shift timing and shift shock.

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267960

1.

MALFUNCTION CAUSE SIMULATION TEST

Refer to

GI-45, "Intermittent Incident"

.

Is the check result normal?

YES

>> Replace the transaxle assembly. Refer to

TM-250, "Removal and Installation"

.

NO

>> Repair or replace the malfunctioning parts.

Selector lever

: D position (O/D OFF)

Gear

: 3GR

Accelerator pedal position

: 0.7/8 or more

Vehicle speed

: 20 km/h (13 MPH) or more