transaxle NISSAN TIIDA 2007 Service Repair Manual

CVT-112
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Revision: June 20062007 Versa
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "
TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> 1. Repair or replace damaged parts.
2. Replace the transaxle assembly. Refer to CVT-207, "
Removal and Installation" .

CVT-116
DTC P0745 LINE PRESSURE SOLENOID VALVE
Revision: June 20062007 Versa
2. CHECK PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK VALVE RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
4. CHECK HARNESS BETWEEN TCM AND PRESSURE CONTROL SOLENOID VALVE A (LINE PRES-
SURE SOLENOID VALVE)
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector and TCM connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between ground and CVT assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK DTC
Perform CVT-113, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
Solenoid valve Connector TerminalResistance
(Approx.)
Pressure control solenoid valve A
(Line pressure solenoid valve) E31 1 - ground 2.5 - 5.0 Ω
SCIA4685E
Solenoid valve Connector TerminalResistance
(Approx.)
Pressure control solenoid valve A
(Line pressure solenoid valve) F46 2 - Ground 2.5 - 5.0 Ω
SCIA4686E
Item Connector Terminal Continuity
TCM E31 1
Ye s
CVT unit harness connector F46 2
SCIA4687E

DTC P0745 LINE PRESSURE SOLENOID VALVE
CVT-117
D
E
F
G
H
I
J
K
L
MA
B
CVT
Revision: June 20062007 Versa
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "
TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> 1. Repair or replace damaged parts.
2. Replace the transaxle assembly. Refer to CVT-207, "
Removal and Installation" .
Component InspectionUCS0060U
PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
4. If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
Solenoid valve Connector TerminalResistance
(Approx.)
Pressure control solenoid valve A
(Line pressure solenoid valve) F46 2 - Ground 2.5 - 5.0 Ω
SCIA4686E

CVT-120
DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRES-
SURE SOLENOID VALVE)
Revision: June 20062007 Versa
5. DETECT MALFUNCTIONING ITEM
Check the following:

Power supply and ground circuit for TCM. Refer to CVT-146, "Wiring Diagram — CVT — POWER" .

The TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK DTC
Perform CVT-118, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Replace the transaxle assembly or TCM. Refer to CVT-207, "
Removal and Installation" .

DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE (SEC PRES-
SURE SOLENOID VALVE)
CVT-123
D
E
F
G
H
I
J
K
L
MA
B
CVT
Revision: June 20062007 Versa
6. CHECK DTC
Perform CVT-121, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-207, "
Removal and Installation" .

CVT-128
DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC PRES-
SURE SOLENOID VALVE)
Revision: June 20062007 Versa
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "
TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> 1. Repair or replace damaged parts.
2. Replace the transaxle assembly. Refer to CVT-207, "
Removal and Installation" .
Component InspectionUCS0061E
PRESSURE CONTROL SOLENOID VALVE B (SECONDARY PRESSURE SOLENOID VALVE)
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector terminal
and ground.
4. If NG, replace the transaxle assembly. Refer to CVT-207,
"Removal and Installation" .
Solenoid Valve Connector TerminalResistance
(Approx.)
Pressure control sole-
noid valve B (Secondary
pressure solenoid valve) F46 3 - Ground 2.5 - 5.0 Ω
SCIA4688E

CVT-132
DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
Revision: June 20062007 Versa
2. CHECK SENSOR POWER AND SENSOR GROUND
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between TCM connector terminals.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HARNESS BETWEEN TCM AND TRANSMISSION FLUID PRESSURE SENSOR A (SECOND-
ARY PRESSURE SENSOR)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Item Connector TerminalData
(Approx.)
TCM connector E32 46 - 42 5.0 V
SCIA2367E
Item Connector Terminal Continuity
TCM E32 42
Ye s
CVT unit harness connector F46 19
TCM E32 46
Ye s
CVT unit harness connector F46 20
SCIA4681E
Item Connector Terminal Continuity
TCM E32 37
Ye s
CVT unit harness connector F46 23
SCIA4690E

DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT (SEC
PRESSURE SENSOR)
CVT-133
D
E
F
G
H
I
J
K
L
MA
B
CVT
Revision: June 20062007 Versa
5. CHECK DTC
Perform CVT-129, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to CVT-54, "
TCM Input/Output Signal Reference Values" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-207, "Removal and Installation" .
NG >> Repair or replace damaged parts.

CVT-136
DTC P0841 PRESSURE SENSOR FUNCTION
Revision: June 20062007 Versa
PRESSURE SENSOR A CIRCUIT (SEC PRESSURE SENSOR)" , CVT-137, "DTC P0845 TRANSMISSION
FLUID PRESSURE SENSOR B CIRCUIT (PRI PRESSURE SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. DETECT MALFUNCTIONING ITEM
Check the following:

Pressure control solenoid valve A (Line pressure solenoid valve). Refer to CVT-117, "Component Inspec-
tion" .

Pressure control solenoid valve B (Secondary pressure solenoid valve). Refer to CVT-128, "Component
Inspection" .

Step motor. Refer to CVT-167, "Component Inspection" .
OK or NG6
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. CHECK DTC
Perform CVT-134, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Replace TCM or transaxle assembly. Refer to CVT-207, "
Removal and Installation" .

CVT-140
DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT (PRI
PRESSURE SENSOR)
Revision: June 20062007 Versa
2. CHECK SENSOR POWER AND SENSOR GROUND
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between TCM connector terminals.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER
AND SENSOR GROUND)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT
unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> Replace TCM. Refer to CVT-9, "Service After Replacing TCM and Transaxle Assembly" .
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HARNESS BETWEEN TCM AND TRANSMISSION FLUID PRESSURE SENSOR B (PRIMARY
PRESSURE SENSOR)
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit
harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Item Connector TerminalData
(Approx.)
TCM connector E32 46 - 42 5.0 V
SCIA2367E
Item Connector Terminal Continuity
TCM E32 42
Ye s
CVT unit harness connector F46 19
TCM E32 46
Ye s
CVT unit harness connector F46 20
SCIA4681E
Item Connector Terminal Continuity
TCM E32 41
Ye s
CVT unit harness connector F46 25
SCIA4691E