diagram NISSAN TEANA 2008 Service Manual

TM-42
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
P0615 START SIGNAL
P0615 START SIGNAL
DescriptionINFOID:0000000003848949
 TCM controls starter relay in IPDM E/R.
 TCM switches starter relay ON at “P” or “N” position and allows to crank engine.
 Then it prohibits cranking other than at “P” or “N” position.
DTC LogicINFOID:0000000003848950
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
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. Perform “Self-Diagnostic Results” mode for “TRANSMISSION”.
Is
“P0615 STARTER RELAY/CIRC” detected?
YES >> Go to TM-42, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003848951
1.CHECK STARTER RELAY SIGNAL
1. Turn ignition switch ON.
2. Disconnect IPDM E/R harness connector.
3. Check voltage between IPDM E/R vehicle side harness connector terminal and ground.
Is the inspection result normal?
YES >> Check starter relay and starter control relay. Refer to STR-10, "Wiring Diagram - STARTING SYS-
TEM -".
NO >> GO TO 2.
2.CHECK HARNESS BETWEEN TCM AND IPDM E/R (PART 1)
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check continuity between TCM vehicle side harness connector terminal and IPDM E/R vehicle side har-
ness connector terminal.
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P0615 STARTER RELAY/CIRCIf this signal is ON other than in “P” or “N” po-
sition, this is judged to be a malfunction.
(And if it is OFF in “P” or “N” position, this too
is judged to be a malfunction.) Harness or connectors
(Starter relay and TCM circuit is open or
shorted.)
 Starter relay circuit
IPDM E/R vehicle side harness connector
GroundCondition Voltage (Approx.)
Connector Terminal
F12 72Selector lever in “P” and “N” positions Battery voltage
Selector lever in other positions 0 V

P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)
TM-87
< COMPONENT DIAGNOSIS >[CVT: RE0F09B]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
5.CHECK HARNESS BETWEEN TCM AND IPDM E/R AND BETWEEN TCM AND BATTERY (PART 2)
Check continuity between TCM vehicle side harness connector terminals and ground.
Is the inspection result normal?
YES >> Check the following. If NG, repair or replace damaged parts.
 10A fuse (No. 43, located in IPDM E/R)
 10A fuse (No. 11, located in fuse block J/B)
 Ignition switch. Refer to PG-55, "
Wiring Diagram - IGNITION POWER SUPPLY -".
NO >> Repair or replace damaged parts.
6.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.
TCM vehicle side harness connector
GroundContinuity
Connector Terminal
F2345
Not existed 46
47
48

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-116
< ECU DIAGNOSIS >[CVT: RE0F09B]
TCM
Wiring Diagram - CVT CONTROL SYSTEM -
INFOID:0000000003849060
JCDWM0243GB

CVT SYSTEM
TM-181
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
FUNCTION DIAGNOSIS
CVT SYSTEM
System DiagramINFOID:0000000003806347
JPDIA0743GB

TM-184
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
MECHANICAL SYSTEM
System Diagram
INFOID:0000000003806350
System DescriptionINFOID:0000000003806351
Transmits the power from the engine to the drive wheel.
JPDIA0743GB

HYDRAULIC CONTROL SYSTEM
TM-187
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
HYDRAULIC CONTROL SYSTEM
System DiagramINFOID:0000000003806354
System DescriptionINFOID:0000000003806355
The hydraulic control mechanism consists of the oil pump directly driven by the engine, the hydraulic control
valve that controls line pressure and transmission, and the input signal line.
LINE PRESSURE AND SECONDARY PRESSURE CONTROL
 When an input torque signal equivalent to the engine driving force is transmitted from the ECM to the TCM,
the TCM controls the line pressure solenoid valve and secondary pressure solenoid valve.
 Line pressure solenoid valve activates pressure regulator valve, and line pressure from oil pump is adjusted
for the optimum driving condition. Secondary pressure is controlled by lowering line pressure.
JPDIA0733GB
SCIA1846E

TM-190
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
CONTROL SYSTEM
CONTROL SYSTEM
System DiagramINFOID:0000000003806358
System DescriptionINFOID:0000000003806359
The CVT senses vehicle operating conditions through various sensors. It always controls the optimum shift
position and reduces shifting and lock-up shocks.
TCM FUNCTION
The function of the TCM is to:
 Receive input signals sent from various switches and sensors.
 Determine required line pressure, shifting point, and lock-up operation.
 Send required output signals to the step motor and the respective solenoids.
INPUT/OUTPUT SIGNAL OF TCM
JPDIA0744GB
SENSORS (or SIGNALS)
⇒TCM
⇒ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Engine speed signal
CVT fluid temperature sensor
Vehicle speed signal
Sport mode switch signal
Stop lamp switch signal
Primary speed sensor
Secondary speed sensor
Secondary pressure sensorShift control
Line pressure control
Primary pressure control
Secondary pressure control
Lock-up control
Engine brake control
Vehicle speed control
Fail-safe control
Self-diagnosis
CONSULT-III communication
line
Duet-EA control
CAN system
On board diagnosisSte p m ot or
Torque converter clutch solenoid
valve
Lock-up select solenoid valve
Line pressure solenoid valve
Secondary pressure solenoid
valve
SPORT indicator lamp
Shift position indicator

TM-194
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
LOCK-UP AND SELECT CONTROL SYSTEM
LOCK-UP AND SELECT CONTROL SYSTEM
System DiagramINFOID:0000000003806362
System DescriptionINFOID:0000000003806363
 The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to
increase power transmission efficiency.
 The torque converter clutch control valve operation is controlled by the torque converter clutch solenoid
valve, which is controlled by a signal from TCM. The torque converter clutch control valve engages or
releases the torque converter clutch piston.
 When shifting between “N” (“P”) ⇔“D” (“R”), torque converter clutch solenoid valve controls engagement
power of forward clutch and reverse brake.
 The lock-up applied gear range was expanded by locking up the
torque converter at a lower vehicle speed than conventional CVT
models.
TORQUE CONVERTER CLUTCH AND SELECT CONTROL VALVE CONTROL
Lock-up Released
In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
torque converter clutch solenoid valve and the lock-up apply pressure is drained.
In this way, the torque converter clutch piston is not coupled.
Lock-up Applied
In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the torque
converter clutch solenoid valve and lock-up apply pressure is generated.
In this way, the torque converter clutch piston is pressed and coupled.
Select Control
When shifting between “N” (“P”) ⇔“D” (“R”), optimize the operating pressure on the basis of the throttle posi-
tion, the engine speed, and the secondary pulley (output) revolution speed to lessen the shift shock.
SCIA2374E
JPDIA0312GB

SHIFT CONTROL SYSTEM
TM-197
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
SHIFT CONTROL SYSTEM
System DiagramINFOID:0000000003806366
NOTE:
The gear ratio is set for each position separately.
System DescriptionINFOID:0000000003806367
In order to select the gear ratio that can obtain the driving force in accordance with driver's intention and the
vehicle condition, TCM monitors the driving conditions, such as the vehicle speed and the throttle position and
selects the optimum gear ratio, and determines the gear change steps to the gear ratio. Then TCM sends the
command to the step motor, controls the inflow/outflow of line pressure from the primary pulley to determine
the position of the moving-pulley and controls the gear ratio.
“D” POSITION
Shifting over all the ranges of gear ratios from the lowest to the high-
est.
SPORT MODE
Use this position for the improved engine braking.
“L” POSITION
By limiting gear range to the lowest position, the strong driving force
and the engine brake can be secured.
DOWNHILL ENGINE BRAKE CONTROL (AUTO ENGINE BRAKE CONTROL)
When a downhill slope is detected with the accelerator pedal released, the engine brake will be strengthened
up by downshifting so as not to accelerate the vehicle more than necessary.
JPDIA0745GB
SCIA1953E
SCIA1955E