NISSAN TEANA 2008 Service Manual

TM-98
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
P1777 STEP MOTOR
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 2.
2.CHECK HARNESS BETWEEN TCM AND CVT UNIT (STEP MOTOR) (PART 1)
1. Disconnect CVT unit connector.
2. Check continuity between TCM vehicle side harness connector terminals and CVT unit vehicle side har-
ness connector terminals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK HARNESS BETWEEN TCM AND CVT UNIT (STEP MOTOR) (PART 2)
Check continuity between TCM vehicle side harness connector terminals and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace damaged parts.
4.CHECK STEP MOTOR
Check step motor. Refer to TM-98, "
Component Inspection (Step Motor)".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace transaxle assembly. Refer to TM-168, "
Exploded View".
5.DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES >> Replace TCM. Refer to TM-153, "Exploded View".
NO >> Repair or replace damaged parts.
Component Inspection (Step Motor)INFOID:0000000003849043
1.CHECK STEP MOTOR
1. Check resistance between CVT unit connector terminals.
TCM vehicle side harness connector CVT unit vehicle side harness connector
Continuity
Connector Terminal Connector Terminal
F2327
F249
Existed 28 8
29 7
30 6
TCM vehicle side harness connector
GroundContinuity
Connector Terminal
F2327
Not existed 28
29
30
CVT unit connector
Resistance (Approx.)
Connector Terminals
F2467
30.0 Ω
89

P1777 STEP MOTOR
TM-99
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
2. Check resistance between CVT unit connector terminals and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace transaxle assembly. Refer to TM-168, "
Exploded View".
CVT unit connector
GroundResistance (Approx.)
Connector terminal
F246
15.0 Ω 7
8
9

TM-100
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
P1778 STEP MOTOR - FUNCTION
P1778 STEP MOTOR - FUNCTION
DescriptionINFOID:0000000003849044
 The step motor changes the step by 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.
 This diagnosis item is detected when the electrical system is OK, but the mechanical system is NG.
 This diagnosis item is detected when the state of the changing of the speed mechanism in the unit does not
operate normally.
DTC LogicINFOID:0000000003849045
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
 Always drive vehicle at a safe speed.
 Before starting “DTC CONFIRMATION PROCEDURE”, confirm “Hi” or “Mid” or “Low” fixation by
“PRI SPEED” and “VEHICLE SPEED” on “Data Monitor”.
 If hi-geared fixation occurred, go to TM-100, "
Diagnosis Procedure".
NOTE:
Immediately after performing any “DTC CONFIRMATION PROCEDURE”, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Make sure that output voltage of CVT fluid temperature sensor is within the range below.
4. Start engine and maintain the following conditions for at least 30 consecutive seconds.
With GST
Follow the procedure “With CONSULT-III”.
Is
“P1778 STEP MOTR/FNC” detected?
YES >> Go to TM-100, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003849046
1.CHECK STEP MOTOR SYSTEM
Check step motor system. Refer to TM-97, "
Description".
Is the inspection result normal?
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P1778 STEP MOTR/FNCThere is a big difference between the num-
ber of steps for the stepping motor and for
the actual gear ratio.Ste p m ot or
ATF TEMP SEN : 1.0 – 2.0 V
If it is out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage
(cool down the fluid)
Start test from 0 km/h (0 MPH)
Constant acceleration : Keep 30 sec or more
VEHICLE SPEED : 10 km/h (6 MPH) or more
ACC PEDAL OPEN : More than 1.0/8
RANGE : “D” position
ENG SPEED : 450 rpm or more

P1778 STEP MOTOR - FUNCTION
TM-101
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR) SYSTEM
Check input speed sensor (primary speed sensor) system. Refer to TM-52, "
Description".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system. Refer to TM-55, "
Description".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace damaged parts.
4.DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES >> Replace TCM. Refer to TM-153, "Exploded View".
NO >> Repair or replace damaged parts.

TM-102
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
SHIFT POSITION INDICATOR CIRCUIT
SHIFT POSITION INDICATOR CIRCUIT
DescriptionINFOID:0000000003849047
 TCM sends position indicator signals to combination meter via CAN communication line.
 The selector lever position is indicated on the shift position indicator.
Component Function CheckINFOID:0000000003849048
1.CHECK SHIFT POSITION INDICATOR
CAUTION:
Always drive vehicle at a safe speed.
1. Start engine.
2. Check that correct selector lever position (“P”, “R”, “N”, “D”, “L”) is displayed as selector lever is moved
into each position.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to TM-102, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003849049
1.CHECK INPUT SIGNALS
With CONSULT-III
1. Start engine.
2. Select “RANGE” on “Data Monitor” and read out the value.
3. Check that correct selector lever position (“P”, “R”, “N”, “D”, “L”) is displayed as selector lever is moved
into each position.
Is the inspection result normal?
YES >> INSPECTION END
NO-1 (CVT position indicator does not indicate “L” when selector lever is moved into “L”.)>>Check the fol-
lowing.
 Check sport mode switch. Refer to TM-108, "
Description".
 Check CVT main system (Fail-safe function actuated).
- Perform “Self-Diagnostic Results” mode for “TRANSMISSION”.
NO-2 (The actual gear position changes, but the shift position indicator is not indicated.)>>Perform “Self-
Diagnostic Results” mode for “TRANSMISSION”.
NO-3 (The actual gear position and the indication on the shift position indicator do not coincide.)>>Perform
“Self-Diagnostic Results” mode for “TRANSMISSION”.
NO-4 (Only a specific position or positions is/are not indicated on the shift position indicator.)>>Check the
combination meter. Refer to MWI-33, "
CONSULT-III Function (METER/M&A)".

SHIFT LOCK SYSTEM
TM-103
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
SHIFT LOCK SYSTEM
DescriptionINFOID:0000000003862436
Wiring Diagram - CVT SHIFT LOCK SYSTEM -INFOID:0000000003862437
Component Function
Shift lock solenoidIt operates according to the signal from the stop lamp switch and
moves the lock lever.
Lock leverIt moves according to the operation of the shift lock solenoid and
performs the release of the shift lock.
Detent rodIt links with the selector button and restricts the selector lever
movement.
Park position switch It detects that the selector lever is in P position.
Shift lock release button It moves the lock lever forcibly.

TM-104
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
SHIFT LOCK SYSTEM
JCDWM0253GB

SHIFT LOCK SYSTEM
TM-105
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
Component Function CheckINFOID:0000000003862438
1. CHECK CVT SHIFT LOCK OPERATION
1. Turn ignition switch ON.
2. Shift the selector lever to the “P” position.
3. Attempt to shift the selector lever to any other position with the brake pedal released.
Can the selector lever be shifted to any other position?
JCDWM0254GB

TM-106
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
SHIFT LOCK SYSTEM
YES >> Go to TM-106, "Diagnosis Procedure".
NO >> GO TO 2.
2. CHECK CVT SHIFT LOCK OPERATION
Attempt to shift the selector lever to any other position with the brake pedal depressed.
Can the selector lever be shifted to any other position?
YES >> INSPECTION END
NO >> Go to TM-106, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003862439
1. CHECK POWER SOURCE
1. Turn ignition switch ON.
2. Check voltage between stop lamp switch vehicle side harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check the following.
 Harness for short or open between fuse block J/B connector terminal 4F and stop lamp switch
harness connector terminal 3
 10 A fuse [No. 3, located in the fuse block J/B]
 Ignition switch
2.CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to TM-107, "
Component Inspection (Stop Lamp Switch)".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace stop lamp switch. Refer to BR-17, "
Exploded View".
3.CHECK HARNESS BETWEEN STOP LAMP SWITCH AND CONTROL DEVICE (PART 1)
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch vehicle side harness connector and control device vehicle side harness con-
nector.
3. Check continuity between stop lamp switch vehicle side harness connector terminal and control device
vehicle side harness connector terminal.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace damaged parts
4.CHECK HARNESS BETWEEN STOP LAMP SWITCH AND CONTROL DEVICE (PART 2)
Check continuity between stop lamp switch vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace damaged parts
Stop lamp switch vehicle side harness connector
GroundVoltage (Approx.)
Connector Terminal
E115 3 Battery Voltage
Stop lamp switch vehicle side harness connector Control device vehicle side harness connector
Continuity
Connector Terminal Connector Terminal
E115 4 M57 6 Existed
Stop lamp switch vehicle side harness connector
GroundContinuity
Connector Terminal
E115 4 Not existed

SHIFT LOCK SYSTEM
TM-107
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
5.CHECK GROUND CIRCUIT
Check continuity between control device vehicle side harness connector and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace damaged parts
6.CHECK CONTROL DEVICE
1. Shift selector lever to “P” position.
2. Check continuity between control device connector.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace shift lock unit. Refer to TM-155, "
Exploded View".
Component Inspection (Stop Lamp Switch)INFOID:0000000003862440
1.CHECK STOP LAMP SWITCH
Check continuity between stop lamp switch connector terminals 3 and 4.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace stop lamp switch. Refer to BR-17, "
Exploded View".
Control device vehicle side harness connector
GroundContinuity
Connector Terminal
M57 7 Existed
Control device connector
Continuity
Connector Terminal
M57 6 7 Existed
Stop lamp switch connector
Condition Continuity
Connector Terminal
E115 3 4Depressed brake pedal Existed
Released brake pedal Not existed