Page 1038 of 4331
OK >> GO TO 5.
NG >> GO TO 2. OK >> GO TO 5.
NG >> GO TO 3. Name Connector Terminal Condition
Voltage
(Approx.)
Torque con-
verter
clutch sole-
noid valve E31 3 - ground When vehi-
cle cruises
in “D” posi-
tion Lock-up ON 6.0 V
Lock-up OFF 1.0 V
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CVT
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DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Description INFOID:0000000004666968
• The torque converter clutch solenoid valve is included in the control valve assembly.
• This malfunction is detected when the torque converter clutch does not lock-up as instructed by the TCM.
This is not only caused by electrical malfunction (cir cuits open or shorted), but also by mechanical malfunc-
tion such as control valve sticking, improper solenoid valve operation, etc.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004666969
Remarks: Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004666970
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0744 A/T TCC S/V FNCTN” wit h CONSULT-III is detected under the following
conditions.
- When CVT cannot perform lock-up even if electrical circuit is good.
- When TCM compares difference value with slip revolution and detects an irregularity.
Possible Cause INFOID:0000000004666971
• Torque converter clutch solenoid valve
• Hydraulic control circuit
DTC Confirmation Procedure INFOID:0000000004666972
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESU LTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine and maintain the following condition for at least 30 seconds.
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
[Vehicle speed: Constant speed of more than 40 km/h (25 MPH)]
4. If DTC is detected go to CVT-97, " Diagnosis Procedure " .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis Procedure INFOID:0000000004666973
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OK >> GO TO 5.
NG >> GO TO 2. Inspections before Trouble Diagnosis " .
OK or NG OK >> GO TO 3.
NG >> Repair or replace damaged parts. Refer to CVT-40, " Inspections before Trouble Diagnosis " .
Component Inspection " .
• Lock-up select solenoid valve. Refer to CVT-139, " Component Inspection " .
OK or NG OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM AND INPUT SPEED ,
CVT-80 .
OK or NG OK >> GO TO 5.
NG >> Repair or replace damaged parts. DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 6. 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 the transaxle assembly. Refer to CVT-182, " Removal and Installation " .
Item name Condition Display value
ENG SPEED SIG Eng ine runningClosely matches the ta-
chometer reading.
PRI SPEED SEN During driving (lock-up ON) Approximately matches
the engine speed.
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CVT
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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-182," Removal and Installation " .
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 6. TCM Terminal and Reference Value " .
2. If NG, re-check TCM pin terminals for dam age 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-12, " Service After Replacing TCM and Transaxle Assembly " .
Component Inspection INFOID:0000000004667063
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-182," Removal and Installation " .
Solenoid valve Connector Terminal
Resistance (Ap-
prox.)
Lock-up select solenoid valve F46 13 - Ground 6 - 19 Ω
Page 1109 of 4331
CVT
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CVT SHIFT LOCK SYSTEM
Description INFOID:0000000004667104
• The mechanical key interlock mechanism also operates as a shift lock: With the ignition switch turned to ON, selector lever cannot be shifted from “P” position to any other position
unless brake pedal is depressed.
With the key removed, selector lever cannot be shifted from “P” position to any other position.
The key cannot be removed unless selector lever is placed in “P” position.
• The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock sole-
noid and by the operation of the rotator and sli der located inside key cylinder, respectively.
Shift Lock System Electrical Parts Location INFOID:0000000004667105
1. Key interlock cable 2. Key cylinder 3. Stop lamp switch
4. Brake pedal 5. Shift lock release button 6. Key interlock cable
7. Shift lock solenoid 8. Park position switch
Page 1111 of 4331
CVT
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•
Selector lever can be moved fr om “P” position with ignition key in ON position and brake pedal
released.
• Selector lever can be moved from “P” position when ignition switch is removed from key cylinder.
SYMPTOM 2:
• Ignition key cannot be removed when sel ector lever is set to “P” position.
• Ignition key can be removed wh en selector lever is set to any position except “P” position.OK >> GO TO 2.
NG >> Repair key interlock cable. Refer to AT-218, " Removal and Installation " .
Checking of CVT Position " .
OK or NG OK >> GO TO 3.
NG >> Adjust control cable. Refer to CVT-175, " Adjustment of CVT Position " .
OK >>
INSPECTION END
NG - 1 >> With intelligent key: GO TO 4.
NG - 2 >> Without intelligent key: GO TO 5. OK >> GO TO 8.
NG >> GO TO 6.
Page 1112 of 4331
![NISSAN TIIDA 2009 Service Repair Manual CVT-168< SERVICE INFORMATION >
[RE0F08A]
CVT SHIFT LOCK SYSTEM
2. Check voltage between CVT device harness connector terminal 5 and ground.
OK or NG OK >> GO TO 9.
NG >> GO TO 6. 6.
CHECK STOP LAMP SW NISSAN TIIDA 2009 Service Repair Manual CVT-168< SERVICE INFORMATION >
[RE0F08A]
CVT SHIFT LOCK SYSTEM
2. Check voltage between CVT device harness connector terminal 5 and ground.
OK or NG OK >> GO TO 9.
NG >> GO TO 6. 6.
CHECK STOP LAMP SW](/manual-img/5/57398/w960_57398-1111.png)
CVT-168< SERVICE INFORMATION >
[RE0F08A]
CVT SHIFT LOCK SYSTEM
2. Check voltage between CVT device harness connector terminal 5 and ground.
OK or NG OK >> GO TO 9.
NG >> GO TO 6. 6.
CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between stop lamp switch harness connector
terminals 3 and 4.
Check stop lamp switch after adjusting brake pedal. Refer to
BR-6 .
OK or NG OK >> GO TO 7.
NG >> Repair or replace damaged parts. 7.
DETECT MALFUNCTIONING ITEM
Check the following. If any items are damaged, repair or replace damaged parts.
• Harness for short or open between ignition switch and stop lamp switch harness connector
• Harness for short or open between stop lamp switch harness connector and CVT device harness connector
• 10A fuse [No.3, located in the fuse block (J/B)]
• Ignition switch, Refer to PG-3 .
OK or NG OK >>
INSPECTION END
NG >> Repair or replace damaged parts. 8.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect CVT device harness connector.
3. Check continuity between CVT device harness connector termi- nal 6 and ground.
4. Connect CVT device harness connector.
OK or NG OK >> Replace shift lock solenoid and park position switch
assembly.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. 9.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect CVT device harness connector. Voltage:
Brake pedal depressed: Battery voltage
Brake pedal released: 0V SCIA7935E
Condition Continuity
When brake pedal is depressed Yes
When brake pedal is released No SCIA2126E
Continuity should exist.
SCIA7936E
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CVT
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3. Check continuity between CVT device harness connector termi-
nal 6 and ground.
4. Connect CVT device harness connector.
OK or NG OK >> Replace shift lock solenoid and park position switch
assembly.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Continuity should exist.