2006 NISSAN VERSA clutch

AT-78
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
TCM Terminals and Reference ValueUCS005N0
TCM CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
TCM terminal data are reference values, measured between each terminal and ground.
SCIA0495E
Te r m i n a lWire
colorItem ConditionJudgement stan-
dard (Approx.)
1WLine pressure solenoid
valveWhen releasing accelerator pedal after
warming up engine.1.5 - 3.0 V
When depressing accelerator pedal
fully after warming up engine.0 V
2PLine pressure solenoid
valve (with dropping
resistor)When releasing accelerator pedal after
warming up engine.4 - 14 V
When depressing accelerator pedal
fully after warming up engine.0 V
3GRTorque converter clutch
solenoid valveWhen A/T performs lock-up. 8 - 15 V
When A/T does not perform lock-up. 0 V
5 L CAN H — —
6 P CAN L — —
10 R Power supplyWhen turning ignition switch to “ON”. Battery voltage
When turning ignition switch to “OFF”. 0 V
11 O Shift solenoid valve AWhen shift solenoid valve A operates.
(When driving in “D
1 ” or “D4 ”.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2 ” or “D3 ”.)0 V
12 G Shift solenoid valve BWhen shift solenoid valve B operates.
(When driving in “D
1 ” or “D2 ”.)Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3 ” or “D4 ”.)0 V
19 R Power supplyWhen turning ignition switch to “ON”. Battery voltage
When turning ignition switch to “OFF”. 0 V
20 VOverrun clutch solenoid
valveWhen overrun clutch solenoid valve
operates. (When overrun clutch disen-
gaged. Refer to AT-2 2
.)Battery voltage
When overrun clutch solenoid valve
does not operate. (When overrun
clutch engaged. Refer to AT- 2 2
.)0 V
25 B Ground Always 0 V

TROUBLE DIAGNOSIS
AT-81
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Revision: June 20062007 Versa
2 POSITION SWWhen setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SWWhen setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF
CLOSED THL/SWReleased accelerator pedal. ON
Depressed accelerator pedal. OFF
W/O THRL/P-SWFully depressed accelerator pedal. ON
Released accelerator pedal. OFF
SHIFT S/V AWhen shift solenoid valve A operates.
(When driving in “D
1 ” or “D4 ”.)ON
When shift solenoid valve A does not operate.
(When driving in “D
2 ” or “D3 ”.)OFF
SHIFT S/V BWhen shift solenoid valve B operates.
(When driving in “D
1 ” or “D2 ”.)ON
When shift solenoid valve B does not operate.
(When driving in “D
3 ” or “D4 ”.)OFF
OVERRUN/C S/VWhen overrun clutch solenoid valve operates.
(When overrun clutch disengaged. Refer to AT-
22 .)ON
When overrun clutch solenoid valve does not
operate. (When overrun clutch engaged. Refer
to AT- 2 2
.)OFF
BRAKE SWDepressed brake pedal. ON
Released brake pedal. OFF
GEAR During driving 1, 2, 3, 4
SLCT LVR POSIWhen setting selector lever to “N” or “P” posi-
tions.N · P
When setting selector lever to “R” position. R
When setting selector lever to “D” position. D
When setting selector lever to “2” position. 2
When setting selector lever to “1” position. 1
VEHICLE SPEED During drivingApproximately matches the speedometer
reading.
LINE PRES DTY Line pressure low ⇔ Line pressure high 0 % ⇔ 94 %
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4 % ⇔ 94 % Item name Condition Display value (Approx.)

AT-82
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
CONSULT-II SETTING PROCEDURE
Rafer to GI-38, "CONSULT-II Start Procedure" .
SELF-DIAGNOSTIC RESULT MODE
After performing AT- 9 0 , "Diagnostic Procedure Without CONSULT-II" , place check marks for results on the
AT-47, "
DIAGNOSTIC WORKSHEET" . Reference pages are provided following the items.
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
BCIA0031E
Items (CONSULT-II
screen terms)Malfunction is detected when...OBD-II (DTC)
Reference
page MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
CAN COMM CIRCUIT

When TCM is not transmitting or receiving CAN communication sig-
nal for 2 seconds or more.U1000AT- 9 4
PNP SW/CIRC
TCM does not receive the correct voltage signal (based on the gear
position) from the switch.P0705AT- 9 7
ATF TEMP SEN/CIRC
TCM receives an excessively low or high voltage from the sensor. P0710AT-102
VHCL SPEED SEN-A/T
TCM does not receive the proper voltage signal from the sensor. P0720AT-107
ENGINE SPEED SIG
TCM does not receive the proper voltage signal from the ECM. P0725AT- 11 3
A/T 1ST GR FNCTN
A/T cannot be shifted to the 1st gear position even if electrical circuit
is good.P0731*2AT- 11 7
A/T 2ND GR FNCTN
A/T cannot be shifted to the 2nd gear position even if electrical circuit
is good.P0732*2AT-121
A/T 3RD GR FNCTN
A/T cannot be shifted to the 3rd gear position even if electrical circuit
is good.P0733*2AT-124
A/T 4TH GR FNCTN
A/T cannot be shifted to the 4th gear position even if electrical circuit
is good.P0734*2AT-128
T/C CLUTCH SOL/V
TCM detects an improper voltage drop when it tries to operate the
solenoid valve.P0740AT-134
A/T TCC S/V FNCTN
A/T cannot perform lock-up even if electrical circuit is good.
P0744*2AT-139
LINE PRESSURE S/V
TCM detects an improper voltage drop when it tries to operate the
solenoid valve.P0745AT-145
SHIFT SOLENOID/V A
TCM detects an improper voltage drop when it tries to operate the
solenoid valve.P0750AT-151
SHIFT SOLENOID/V B
TCM detects an improper voltage drop when it tries to operate the
solenoid valve.P0755 AT-156
OVERRUN CLUTCH S/
V
TCM detects an improper voltage drop when it tries to operate the
solenoid valve.P1760AT-161
VHCL SPEED SEN-
MTR
TCM does not receive the proper voltage signal from the sensor. —AT-166

TROUBLE DIAGNOSIS
AT-89
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Revision: June 20062007 Versa
Display Items List
DTC work support item Description Check item
1ST GR FNCTN P0731Following items for “A/T 1st gear function (P0731)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Shift solenoid valve B

Each clutch

Hydraulic control circuit
2ND GR FNCTN P0732Following items for “A/T 2nd gear function (P0732)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve B

Each clutch

Hydraulic control circuit
3RD GR FNCTN P0733Following items for “A/T 3rd gear function (P0733)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Each clutch

Hydraulic control circuit
4TH GR FNCTN P0734Following items for “A/T 4th gear function (P0734)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Shift solenoid valve B

Overrun clutch solenoid valve

Line pressure solenoid valve

Each clutch

Hydraulic control circuit
TCC S/V FNCTN P0744Following items for “A/T TCC S/V function (lock-up) (P0744)” can
be confirmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Torque converter clutch sole-
noid valve

Each clutch

Hydraulic control circuit

TROUBLE DIAGNOSIS
AT-91
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Revision: June 20062007 Versa
3. CHECK SELF-DIAGNOSIS CODE
Check OD OFF indicator lamp. Refer to AT-91, "
Judgement of Self-diagnosis Code" .
>>DIAGNOSIS END
Judgement of Self-diagnosis Code
OD OFF indicator lamp
All judgement flickers are the same.
All circuits that can be confirmed by self-diagnosis are OK.1st judgement flicker is longer than others.
Revolution sensor circuit is short-circuited or disconnected.

Go to AT-107, "DTC P0720 VEHICLE SPEED SENSOR·A/T
(REVOLUTION SENSOR)" .
2nd judgement flicker is longer than others.
Vehicle speed sensor circuit is short-circuited or disconnected.

Go to AT- 1 6 6 , "DTC VEHICLE SPEED SENSOR MTR" .4th judgement flicker is longer than others.
Shift solenoid valve A circuit is short-circuited or disconnected.
Go to AT-151, "DTC P0750 SHIFT SOLENOID VALVE A" .
5th judgement flicker is longer than others.
Shift solenoid valve B circuit is short-circuited or disconnected.

Go to AT- 1 5 6 , "DTC P0755 SHIFT SOLENOID VALVE B" .6th judgement flicker is longer than others.
Overrun clutch solenoid valve circuit is short-circuited or discon-
nected.

Go to AT-161, "DTC P1760 OVERRUN CLUTCH SOLENOID
VA LV E" .
SCIA7161ESCIA5591E
SCIA5592ESCIA5594E
SCIA5595ESCIA5596E

AT-92
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
7th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disconnected.

Go to AT- 1 3 4 , "DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE" .8th judgement flicker is longer than others.
A/T fluid temperature sensor is disconnected or TCM power sup-
ply circuit is damaged.

Go to AT-170, "DTC BATT/FLUID TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)" .
9th judgement flicker is longer than others.
Engine speed signal circuit is short-circuited or disconnected.

Go to AT-11 3 , "DTC P0725 ENGINE SPEED SIGNAL" .10th judgement flicker is longer than others.
Turbine revolution sensor (power train revolution sensor) circuit is
short-circuited or disconnected.

Go to AT-176, "DTC TURBINE REVOLUTION SENSOR" . OD OFF indicator lamp
SCIA5597ESCIA5598E
SCIA5599ESCIA7082E

DTC P0731 A/T 1ST GEAR FUNCTION
AT-117
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Revision: June 20062007 Versa
DTC P0731 A/T 1ST GEAR FUNCTIONPFP:31940
DescriptionUCS005O8

This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosis
malfunction.

This malfunction is detected when the A/T does not shift into first gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, etc.
On Board Diagnosis LogicUCS005O9

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0731 A/T 1ST GR FNCTN” with CONSULT-II is detected when A/T cannot be
shifted to the 1st gear position even if electrical circuit is good.

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM
as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (1st) supposed by TCM, the slip ratio will be more
than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when either shift solenoid valve A is stuck open or shift solenoid valve B is
stuck open.

Gear positions supposed by TCM are as follows:
In case of gear position with no malfunctions: 1 , 2, 3 and 4 positions
In case of gear position with shift solenoid valve A stuck open: 2* , 2, 3 and 3 positions
In case of gear position with shift solenoid valve B stuck open: 4* , 3, 3 and 4 positions to each gear posi-
tion above
*: “P0731 A/T 1ST GR FNCTN” is detected.
Possible CauseUCS005O A

Shift solenoid valve A

Shift solenoid valve B

Each clutch

Hydraulic control circuit
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)

DTC P0732 A/T 2ND GEAR FUNCTION
AT-121
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Revision: June 20062007 Versa
DTC P0732 A/T 2ND GEAR FUNCTIONPFP:31940
DescriptionUCS005O D

This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosis
malfunction.

This malfunction is detected when the A/T does not shift into second gear position as instructed by the
TCM. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction
such as control valve sticking, improper solenoid valve operation, etc.
On Board Diagnosis LogicUCS005O E

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0732 A/T 2ND GR FNCTN” with CONSULT-II is detected when A/T cannot be
shifted to the 2nd gear position even if electrical circuit is good.

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM
as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (2nd) supposed by TCM, the slip ratio will be more
than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve B is stuck open.

Gear positions supposed by TCM are as follows:
In case of gear position with no malfunctions: 1, 2 , 3 and 4 positions
In case of gear position with shift solenoid valve B stuck open: 4, 3* , 3 and 4 positions to each gear posi-
tion above
*: “P0732 A/T 2ND GR FNCTN” is detected.
Possible CauseUCS005OF

Shift solenoid valve B

Each clutch

Hydraulic control circuit
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)