engine control NISSAN TIIDA 2007 Service Service Manual

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)

AT-124
DTC P0733 A/T 3RD GEAR FUNCTION
Revision: June 20062007 Versa
DTC P0733 A/T 3RD GEAR FUNCTIONPFP:31940
DescriptionUCS005O I

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 third 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, malfunctioning servo piston or brake band,
etc.
On Board Diagnosis LogicUCS005OJ

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0733 A/T 3RD GR FNCTN” with CONSULT-II is detected when A/T cannot be
shifted to the 3rd 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 (3rd) 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 A is stuck closed.

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 closed: 1, 1, 4* and 4 positions to each gear
position above
*: “P0733 A/T 3RD GR FNCTN” is detected.
Possible CauseUCS005OK

Shift solenoid valve A

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)

AT-128
DTC P0734 A/T 4TH GEAR FUNCTION
Revision: June 20062007 Versa
DTC P0734 A/T 4TH GEAR FUNCTIONPFP:31940
DescriptionUCS005ON

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 fourth gear position or the torque converter
clutch does not lock up 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, malfunctioning oil pump or torque converter clutch, etc.
CONSULT-II Reference ValueUCS005OO
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS005OP

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0734 A/T 4TH GR FNCTN” with CONSULT-II is detected when A/T cannot be
shifted to the 4th 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 much lower than the position (4th) supposed by TCM, the slip ratio will be
much less than normal. In case the ratio does not reach the specified value, TCM judges this diagnosis
malfunction.
This malfunction will be caused when shift solenoid valve A is stuck open or shift solenoid valve B is stuck
closed.

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 closed: 1, 2, 2 and 1* positions to each gear
position above
*: “P0734 A/T 4TH GR FNCTN” is detected.
Possible CauseUCS005OQ

Shift solenoid valve A

Shift solenoid valve B

Line pressure solenoid valve

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)
Item name Condition Display value (Approx.)
LINE PRES DTYSmall throttle opening (Low line pressure) ⇔ Large
throttle opening (High line pressure)0% ⇔ 94%

AT-134
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Revision: June 20062007 Versa
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionUCS005O T

The torque converter clutch solenoid valve is activated, with the gear in D4 and D3 , by the TCM in
response to signals sent from the vehicle speed sensor and the ECM (throttle opening). Lock-up piston
operation will then be controlled.

Lock-up operation, however, is prohibited when A/T fluid temperature is too low.

When the accelerator pedal is depressed (less than 2/8) on lock-up condition, the engine speed should
not change abruptly. If there is an abrupt change in engine speed, there is no lock-up.
CONSULT-II Reference ValueUCS005OU
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS005OV

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0740 T/C CLUTCH SOL/V” with CONSULT-II or 7th judgement flicker without
CONSULT-II is detected when TCM detects an improper voltage drop while it tries to operate solenoid
valve.
Possible CauseUCS005OW

Torque converter clutch solenoid valve

Harness or connector
(The solenoid circuit is open or shorted.)
DTC Confirmation ProcedureUCS005OX
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II and
wait at least 1 second.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VEHICLE SPEED: 80 km/h (50 MPH) or more
THROTTLE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
5. If the check result is NG, go to AT-136, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle in D
1 → D2 → D3 → D4 → D4 lock-up position.
3. Perform self-diagnosis. Refer to AT-90, "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT-136, "
Diagnostic Procedure" .
Item name Condition Display value (Approx)
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4% ⇔ 94%
BCIA0031E

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
AT-139
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Revision: June 20062007 Versa
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)PFP:31940
DescriptionUCS005P1

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 fourth gear position or the torque converter
clutch does not lock-up 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, malfunctioning oil pump or torque converter clutch, etc.
CONSULT-II Reference ValueUCS005P2
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS005P3

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0744 A/T TCC S/V FNCTN” with CONSULT-II is detected when A/T cannot per-
form lock-up 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 much lower than the position (4th) supposed by TCM, the slip ratio will be
much less than normal. In case the ratio does not reach the specified value, TCM judges this diagnosis
malfunction.
This malfunction will be caused when shift solenoid valve B is stuck closed.

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 closed: 1, 2, 2 and 1* positions to each gear posi-
tion above
*: “P0744 A/T TCC S/V FNCTN” is detected.
Possible CauseUCS005P4

Line pressure solenoid valve

Torque converter clutch solenoid valve

Each clutch

Hydraulic control circuit
Item name Condition Display value (Approx)
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4% ⇔ 94%

DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
AT-161
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Revision: June 20062007 Versa
DTC P1760 OVERRUN CLUTCH SOLENOID VALVEPFP:31940
DescriptionUCS005Q1
The overrun clutch solenoid valve is activated by the TCM in response to signals sent from the PNP switch,
overdrive control switch, vehicle speed and ECM (throttle opening). The overrun clutch operation will then be
controlled.
CONSULT-II Reference ValueUCS005Q2
On Board Diagnosis LogicUCS005Q3

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P1760 OVERRUN CLUTCH S/V” with CONSULT-II or 6th judgement flicker with-
out CONSULT-II is detected when TCM detects an improper voltage drop when it tries to operate solenoid
valve.
Possible CauseUCS005Q4

Harness or connector
(The solenoid circuit is open or shorted.)

Overrun clutch solenoid valve
DTC Confirmation ProcedureUCS005Q5
CAUTION:

Always drive vehicle at a safe speed.

If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Touch “START”.
3. Start engine.
4. Accelerate vehicle to a speed of more than 10 km/h (6 MPH)
with “D” position (OD ON).
5. Release accelerator pedal completely with “D” position (OD
OFF).
6. If the check result is NG, go to AT-163, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever position: “D” position (OD ON)
Vehicle speed: Higher than 10 km/h (6 MPH)
3. Perform self-diagnosis. Refer to AT- 9 0 , "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT-163, "
Diagnostic Procedure" .
Item name Condition Display value
OVERRUN/C S/VWhen overrun clutch solenoid valve operates. (When
overrun clutch disengaged. Refer to AT- 2 2
.)ON
When overrun clutch solenoid valve does not operate.
(When overrun clutch engaged. Refer to AT - 2 2
.)OFF
BCIA0031E

AT-182
CONTROL UNIT (RAM), CONTROL UNIT (ROM)
Revision: June 20062007 Versa
CONTROL UNIT (RAM), CONTROL UNIT (ROM)PFP:31036
DescriptionUCS005QV
The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
On Board Diagnosis LogicUCS005QW

This is not an OBD-II self-diagnostic item.

Diagnostic trouble code “CONTROL UNIT (RAM)”, “CONTROL UNIT (ROM)” with CONSULT-II is
detected when TCM memory (RAM) or (ROM) is malfunctioning.
Possible CauseUCS005QX
TCM.
DTC Confirmation ProcedureUCS005QY
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
A/T with CONSULT-II.
2. Touch “START”.
3. Start engine.
4. Run engine for at least 2 seconds at idle speed.
5. If the check result is NG, go to AT-182, "
Diagnostic Procedure" .
Diagnostic ProcedureUCS005Q Z
1. CHECK DTC
With CONSULT-II
1. Turn ignition switch ON and select “SELF-DIAG RESULTS” mode for A/T with CONSULT-II.
2. Touch “ERASE”.
3. Perform AT-182, "
DTC Confirmation Procedure" .
Is the
“CONTROL UNIT (RAM)” or “CONTROL UNIT (ROM)” displayed again?
YES >> Replace TCM. Refer to AT- 2 2 8 , "Removal and Installation" .
NO >>INSPECTION END
SAT5 7 4J
BCIA0031E

AT-188
PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
Revision: June 20062007 Versa
3. CHECK PNP SWITCH CIRCUIT
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position. Refer to AT-
98, "Wiring Diagram — AT — PNP/SW" .
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 4.
NG >> Check PNP switch circuit. Refer to AT- 9 7 , "
DTC P0705
PARK/NEUTRAL POSITION (PNP) SWITCH" .
4. CHECK PNP SWITCH
1. Turn ignition switch OFF.
2. Disconnect PNP switch harness connector.
3. Check continuity between PNP switch harness connector termi-
nals.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. CHECK CONTROL CABLE ADJUSTMENT
Check PNP switch again with control cable disconnected from manual shaft of A/T assembly. Refer to test
group 4.
OK or NG
OK >> Adjust control cable. Refer to AT- 2 3 3 , "Adjustment of A/T Position" .
NG >> Check PNP switch (Refer to test group 1) again after adjusting PNP switch (Refer to AT- 2 4 7
).

If OK, INSPECTION END

If NG, repair or replace PNP switch. Refer to AT-246, "Park/Neutral Position (PNP) Switch" .
Selector lever positionTerminal
36 35 34 27 26
“P”, “N” B 0 0 0 0
“R” 0B000
“D” 0 0 B 0 0
“2” 0 0 0 B 0
“1” 0 0 0 0 B
SCIA7162E
Selector lever position Connector Terminal Continuity
“P”
F251 - 2, 3 - 7
Ye s
*Continuity
should not
exist in posi-
tions other
than the
specified
positions. “R” 3 - 8
“N” 1 - 2, 3 - 9
“D” 3 - 6
“2” 3 - 5
“1” 3 - 4
SCIA5588E

PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
AT-189
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Revision: June 20062007 Versa
6. DETECT MALFUNCTIONING ITEM
Check the following.

Harness for short or open between ignition switch and PNP switch

Harness for short or open between PNP switch and TCM

Harness for short or open between PNP switch and combination meter

Harness for short or open between combination meter and TCM

10A fuse (No.51, located in the IPDM E/R)

Combination meter. Refer to DI-5, "COMBINATION METERS" .

Ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “OVERDRIVE SW”. Check the signal of overdrive con-
trol switch is indicated properly.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between A/T device harness connector terminal
and ground. Refer to AT- 1 9 3 , "
Wiring Diagram — AT — NON-
DTC" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 8.
Item nameOverdrive control switch
ConditionDisplay value
OVERDRIVE SWDepressed ON
Released OFF
SCIA4730E
Item Connector TerminalOverdrive
control switch
ConditionJudge-
ment
standard
(Approx.)
A/T device harness
connector (Overdrive
control switch)M38 1 - GroundReleasedBattery
voltage
Depressed 0 V
SCIA5336E

AT-190
PNP, OD SWITCH AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSI-
TION SIGNAL CIRCUIT
Revision: June 20062007 Versa
8. CHECK OVERDRIVE CONTROL SWITCH
1. Turn ignition switch OFF.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness connector termi-
nals. Refer to AT-193, "
Wiring Diagram — AT — NONDTC" .
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9. DETECT MALFUNCTIONING ITEM
Check the following.

Harness for short or open between combination meter and A/T device harness connector

Harness for short or open between A/T device harness connector and ground

Combination meter. Refer to DI-5, "COMBINATION METERS" .
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10. CHECK CLOSED THROTTLE POSITION AND WIDE OPEN THROTTLE POSITION SIGNAL CIR-
CUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for A/T with CONSULT-II.
3. Read out “CLOSED THL/SW” and “W/O THRL/P-SW” depressing and releasing accelerator pedal.
Check that the signals of throttle position are indicated properly.
OK or NG
OK >> GO TO 11.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.

Accelerator pedal position sensor. Refer toEC-532, "DTC P2138 APP SENSOR" .
Item Connector TerminalOverdrive control
switch conditionContinuity
A/T device harness con-
nector (Overdrive con-
trol switch)M38 1 - 2Released No
Depressed Yes
SCIA5330E
SCIA4731E
Accelerator pedal conditionData monitor
CLOSED THL/SW W/O THRL/P-SW
Released ON OFF
Fully depressed OFF ON