2008 NISSAN TIIDA connector d2

CVT-134
< SERVICE INFORMATION >
DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
Diagnosis Procedure
INFOID:0000000001703633
1. CHECK INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “LUSEL SOL OUT”.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check voltage between TCM connector terminal and ground.
3. Turn ignition switch OFF.
4. Disconnect the TCM connector.
5. Check if there is continuity between connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK LOCK-UP SELECT 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.
Item name Condition Display value
LUSEL SOL OUTSelector lever in “P” and “N”
positions ON
Wait at least for 5 seconds
with the selector lever in
“R”, “D” and “L” positionsOFF
Name Connector Terminal ConditionVoltage
(Approx.)
Lock-up
select sole-
noid valveE31 4 - GroundSelector lever in “P” and
“N” positions Battery
voltage
Wait at least for 5 sec-
onds with the selector le-
ver in “R”, “D” and “L”
positions0 V
SCIA7955E
Solenoid valve Connector TerminalResistance (Ap-
prox.)
Lock-up select solenoid
valveE31 4 - Ground 6 - 19 Ω
SCIA4692E

DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT
CVT-135
< SERVICE INFORMATION >
D
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B
CVT
N
O
P
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-178,
"Removal and Installation" .
4.CHECK HARNESS BETWEEN TCM AND LOCK-UP SELECT SOLENOID VALVE
1. Turn ignition switch OFF.
2. Disconnect 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. 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-132, "
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-45, "
TCM Terminal and Reference Value" .
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 TCM. Refer to CVT-8, "
Service After Replacing TCM and Transaxle Assembly" .
Component InspectionINFOID:0000000001703634
LOCK-UP SELECT 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-178,
"Removal and Installation" .
Solenoid valve Connector TerminalResistance (Ap-
prox.)
Lock-up select solenoid valve F46 13 - Ground 6 - 19 Ω
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Item Connector Terminal Continuity
TCM E31 4
Ye s
CVT unit harness connector F46 13
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Solenoid valve Connector TerminalResistance (Ap-
prox.)
Lock-up select solenoid valve F46 13 - Ground 6 - 19 Ω
SCIA4693E

DTC P1777 STEP MOTOR - CIRCUIT
CVT-137
< SERVICE INFORMATION >
D
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MA
B
CVT
N
O
P
DTC P1777 STEP MOTOR - CIRCUIT
DescriptionINFOID:0000000001703640
• The step motor is included in the control valve assembly.
• The step motor changes the step with turning 4 coils ON/OFF according to the signal from TCM. As a result,
the flow of line pressure to primary pulley is changed and pulley ratio is controlled
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001703641
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001703642
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1777 STEP MOTR CIRC” with CONSULT-III is detected under the following con-
ditions.
- When operating step motor ON and OFF, there is no proper change in the voltage of TCM terminal which
corresponds to it.
Possible CauseINFOID:0000000001703643
• Step motor
• Harness or connectors
(Step motor circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001703644
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Drive vehicle for at least 5 consecutive seconds.
3. If DTC is detected, go to CVT-139, "
Diagnosis Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value (Approx.)
STM STEP
During driving−20 step - 180 step
SMCOIL A
Changes ON⇔OFF. SMCOIL B
SMCOIL C
SMCOIL D

DTC P1777 STEP MOTOR - CIRCUIT
CVT-139
< SERVICE INFORMATION >
D
E
F
G
H
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K
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MA
B
CVT
N
O
P
Diagnosis ProcedureINFOID:0000000001703646
1.CHECK INPUT SIGNALS
With CONSULT-III
1. Start engine.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start vehicle and read out the value of “STM STEP”, “SMCOIL A”, “SMCOIL B”, “SMCOIL C”, and
“SMCOIL D”.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2.CHECK HARNESS BETWEEN TCM AND STEP MOTOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit connector and TCM 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. If OK, check continuity between body ground and CVT assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK STEP MOTOR
Check step motor. Refer to CVT-140, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK DTC
Perform CVT-137, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
Item name Condition Display value (Approx.)
STM STEP
During driving−20 step - 180 step
SMCOIL A
Changes ON⇔OFF. SMCOIL B
SMCOIL C
SMCOIL D
Item Connector Terminal Continuity
TCM E31 11
Ye s
CVT unit harness connector F46 6
TCM E31 12
Ye s
CVT unit harness connector F46 7
TCM E31 20
Ye s
CVT unit harness connector F46 8
TCM E31 21
Ye s
CVT unit harness connector F46 9
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CVT-140
< SERVICE INFORMATION >
DTC P1777 STEP MOTOR - CIRCUIT
5.CHECK TCM
1. Check TCM input/output signals. Refer to CVT-45, "
TCM Terminal and Reference Value" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Component InspectionINFOID:0000000001703647
STEP MOTOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
3. Check resistance between CVT unit harness connector termi-
nals and ground.
4. If NG, replace the transaxle assembly. Refer to CVT-178, "
Removal and Installation" .
Name Connector TerminalResistance (Ap-
prox.)
Step motor F466 - 7
30 Ω
8 - 9
6 - Ground
15 Ω 7 - Ground
8 - Ground
9 - Ground
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OVERDRIVE CONTROL SWITCH
CVT-145
< SERVICE INFORMATION >
D
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K
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MA
B
CVT
N
O
P
Perform the self-diagnosis check. Refer to CVT-47, "CONSULT-III Function (TRANSMISSION)".
Is any malfunction of the
“U1000 CAN COMM CIRCUIT” indicated in the results?
YES >> Check CAN communication line. Refer to CVT-56.
NO >> GO TO 2.
2.CHECK OVERDRIVE CONTROL SWITCH SIGNAL
With CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out ON/OFF switching action of the “SPORT MODE SW”.
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
3.CHECK OVERDRIVE CONTROL SWITCH
Check overdrive control switch. Refer to CVT-146, "
Component Inspection"
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK SELF-DIAGNOSTIC RESULTS (COMBINATION METER)
Perform self-diagnosis check. Refer to DI-11, "
Self-Diagnosis Mode of Combination Meter".
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO - 1 >> With intelligent key: GO TO 5.
NO - 2 >> Without intelligent key: GO TO 6.
5.CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect CVT device connector and combination meter connector.
3. Check continuity between CVT device harness connector (A)
terminal and combination meter harness connector (B) terminal.
Item name Condition Display value
SPORT MODE SWWhile pushing overdrive
cancel switchON
Other conditions OFF
Item Connector Terminal Continuity
CVT device harness connector M38 1
Ye s
Combination meter harness
connectorM24 8
SCIA7949E

CVT-146
< SERVICE INFORMATION >
OVERDRIVE CONTROL SWITCH
4. Check continuity between CVT device harness connector termi-
nal and ground.
5. If OK, check harness for short to ground and short to power.
6. Reinstall any part removed.
OK or NG
OK >>INSPECTION END
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
6.CHECK OVERDRIVE CONTROL SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect CVT device connector and combination meter connector.
3. Check continuity between CVT device harness connector (A)
terminal and combination meter harness connector (B) terminal.
4. Check continuity between CVT device harness connector termi-
nal and ground.
5. If OK, check harness for short to ground and short to power.
6. Reinstall any part removed.
OK or NG
OK >>INSPECTION END
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Component InspectionINFOID:0000000001703658
OVERDRIVE CONTROL SWITCH
With Intelligent Key
Check continuity between CVT device harness connector terminals.
Without Intelligent Key
Item Connector Terminal Continuity
CVT device harness connector M38 2 - ground Yes
SCIA7950E
Item Connector Terminal Continuity
CVT device harness connector M38 1
Ye s
Combination meter harness
connectorM24 8
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Item Connector Terminal Continuity
CVT device harness connector M38 2 - ground Yes
SCIA7952E
Item Condition Connector Terminal Continuity
Overdrive con-
trol switchWhile pushing
overdrive control
switchM38 1 - 2Ye s
Other conditions No
SCIA7942E

OVERDRIVE CONTROL SWITCH
CVT-147
< SERVICE INFORMATION >
D
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F
G
H
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J
K
L
MA
B
CVT
N
O
P
Check continuity between CVT device harness connector terminals.
Item Condition Connector Terminal Continuity
Overdrive con-
trol switchWhile pushing
overdrive control
switchM38 1 - 2Ye s
Other conditions No
SCIA7943E