relay NISSAN TEANA 2003 Owner's Manual

CVT-18
CVT SYSTEM

TCM FunctionBCS001G2
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.
CONTROL SYSTEM OUTLINE
The CVT senses vehicle operating conditions through various sensors. It always controls the optimum shift
position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SENSORS (or SIGNAL)

TCM

ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Engine speed signal
CVT fluid temperature sensor
Vehicle speed signal
Manual mode signal
Stop lamp switch signal
Primary speed sensor
Secondary speed sensor
Primary pressure 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-II communication line
Duet-EA control
CAN systemSte p mo tor
Torque converter clutch solenoid
valve
Lock-up select solenoid valve
Line pressure solenoid valve
Secondary pressure solenoid
valve
Manual mode indicator
Shift position indicator
CVT indicator lamp
Starter relay
SCIA7872E

CVT-40
TROUBLE DIAGNOSIS

Vehicle Speed at Which Gear Shifting OccursBCS001GO
Numerical value data are reference values.
CAUTION:
Lock-up clutch is engaged when vehicle speed is approximately 18 km/h (11 MPH) to 90 km/h (56 MPH).
TCM Input/Output Signal Reference ValuesBCS001GP
TCM TERMINAL CONNECTOR LAYOUT
TCM INSPECTION TABLE
Data are reference values and are measured between each terminal and ground.
Engine type Throttle position Shift patternEngine speed (rpm)
At 40 km/h (25 MPH) At 60 km/h (37 MPH)
VQ35DE8/8 “D” position 3,100 - 4,300 4,200 - 5,300
2/8 “D” position 1,200 - 2,000 1,300 - 2,100
SCIA0495E
TerminalWire
colorItem Condition Data (Approx.)
1R/YPressure control sole-
noid valve A (Line pres-
sure solenoid valve)
and Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 1.0 V
2W/BPressure control sole-
noid valve B (Second-
ary pressure solenoid
valve) Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 3.0 - 4.0 V
3GTorque converter clutch
solenoid valveWhen vehicle
cruises in “D”
position.When CVT performs lock-up. 6.0 V
When CVT does not perform lock-up. 1.5 V
4LLock-up select solenoid
valveSelector lever in “P”, “N” positions. Battery voltage
Wait at least for 5 seconds with the selector lever in
“R”, “D” positions.0 V
5 L CAN-H — —
6 P CAN-L — —
8 G Back-up lamp relaySelector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
10 Y Power supply— Battery voltage
—0 V

TROUBLE DIAGNOSIS
CVT-41
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CVT

11 G/R Step motor A Within 2 seconds after ignition switch ON, the time measurement by
using the pulse width measurement function (Hi level) of CONSULT-
II.*1
CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used to test this item.30.0 msec
12 O/B Step motor B10.0 msec
13 G/W ROM assembly — —
14 L/R ROM assembly — —
15 BR/R ROM assembly — —
19 Y Power supply— Battery voltage
—0 V
20 R Step motor C Within 2 seconds after ignition switch ON, the time measurement by
using the pulse width measurement function (Hi level) of CONSULT-
II.*1
CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used to test this item.30.0 msec
21 R/G Step motor D10.0 msec
24 R/B Starter relaySelector lever in “N”, “P”positions. Battery voltage
Selector lever in other positions. 0 V
25 B Ground Always 0 V
27 BR/W PNP switch 1Selector lever in “R”, “N” and “D” positions. 0 V
Selector lever in “P” position. Battery voltage
28 Y/RPower supply
(memory back-up)Always Battery voltage
29 LG/ROutput speed sensor
(Secondary speed sen-
sor)When driving [“D” position, 20 km/h (12 MPH)]. 400 Hz
31 O K-LINE — —
32 GR PNP switch 3 (monitor)Selector lever in “D” position. 0 V
Selector lever in “P”, “R” and “N” positions.8.0 V - Battery
voltage
34 P/B PNP switch 2Selector lever in “N”, “D” positions. 0 V
Selector lever in “P”, “R” positions.10.0 V - Battery
voltage
35 P/L PNP switch 3Selector lever in “D” position. 0 V
Selector lever in “P”, “R” and “N” positions.8.0 V - Battery
voltage
36 G/O PNP switch 4Selector lever in “R”, “D” positions. 0 V
Selector lever in “P”, “N” positions.10.0 V - Battery
voltage TerminalWire
colorItem Condition Data (Approx.)

TROUBLE DIAGNOSIS
CVT-47
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CVT

CAUTION:
Touch “CLEAR” after changing CVT fluid, and then erase
“CVTF DETERIORATION DATE”.
SELF-DIAGNOSTIC RESULT MODE
After performing self-diagnosis, place check marks for results on the CVT-27, "DIAGNOSTIC WORKSHEET" .
Reference pages are provided following the items.
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable —: Not applicable
SCIA4290E
BCIA0031E
Items
(CONSULT-II screen terms)Malfunction is detected when...TCM self-
diagnosisReference
page
DTC
CAN COMM CIRCUITWhen a TCM is not transmitting or receiving CAN communication
signal for 2 seconds or moreU1000CVT-53
STARTER RELAY/CIRCIf this signal is ON other than in “P” or “N” position, this is judged to
be a malfunction
(And if it is OFF in “P” or “N” position, this is judged to be a malfunc-
tion too)P0615CVT-56
BRAKE SW/CIRC When the brake switch does not switch to ON or OFF P0703CVT-60
PNP SW/CIRC
PNP switch 1-4 signals input with impossible pattern

PNP switch 3 monitor terminal open or short circuitP0705CVT-62
ATF TEMP SEN/CIRCDuring running, the CVT fluid temperature sensor signal voltage is
excessively high or lowP0710CVT-69
INPUT SPD SEN/CIRC

Input speed sensor (primary speed sensor) signal is not input due
to an open circuit

An unexpected signal is input when vehicle is being drivenP0715CVT-74
VEH SPD SEN/CIR AT

Signal from vehicle speed sensor CVT [Output speed sensor
(Secondary speed sensor)] not input due to open or short circuit

Unexpected signal input during runningP0720CVT-79
ENGINE SPEED SIG

TCM does not receive the CAN communication signal from the
ECM

Engine speed is too low while drivingP0725CVT-85
BELT DAMG Unexpected gear ratio detected P0730CVT-87
TCC SOLENOID/CIRC Normal voltage not applied to solenoid due to open or short circuit P0740CVT-89

CVT-52
TROUBLE DIAGNOSIS

CAN DIAGNOSTIC SUPPORT MONITOR MODE
Operation Procedure
1. Touch “CAN DAIG SUPPORT MNTR” on “SELECT DIAG
MODE” screen. Refer to LAN-44, "
CAN Diagnostic Support
Monitor" .
SPORT MODE IND (ON/OFF) — — Not mounted but displayed.
MMODE IND (ON/OFF) — —
SMCOIL D (ON/OFF) — — Step motor coil “D” energizing status
SMCOIL C (ON/OFF) — — Step motor coil “C” energizing status
SMCOIL B (ON/OFF) — — Step motor coil “B” energizing status
SMCOIL A (ON/OFF) — — Step motor coil “A” energizing status
LUSEL SOL OUT (ON/OFF) — —
REV LAMP (ON/OFF) — X
STRTR RLY OUT (ON/OFF) — — Starter relay
LUSEL SOL MON (ON/OFF) — —
STRTR RLY MON (ON/OFF) — — Starter relay
VDC ON (ON/OFF) X — ESP (Electronic Stability Program)
TCS ON (ON/OFF) X —
ABS ON (ON/OFF) X —
ACC ON (ON/OFF) X — Not mounted but displayed
RANGE — XIndicates position is recognized by TCM. Indi-
cates a specific value required for control when
fail-safe function is activated
M GEAR POS — X
Voltage (V) — —Displays the value measured by the voltage
probe
Frequency (Hz) — —
The value measured by the pulse probe is dis-
played DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — —Monitored item (Unit)Monitor item selection
Remarks ECU
INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION
FROM
MENU
BCIA0031E

CVT-56
DTC P0615 START SIGNAL CIRCUIT

DTC P0615 START SIGNAL CIRCUITPFP:25230
DescriptionBCS001GY

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.
CONSULT-II Reference ValueBCS001GZ
On Board Diagnosis LogicBCS001H0
Diagnostic trouble code “P0615 STARTER RELAY/CIRC” with CONSULT-II is detected when starter relay
switched ON other than at “P” or “N” position. (Or when switched OFF at “P” or “N” position).
Possible CauseBCS001H1

Harness or connectors
(Starter relay and TCM circuit is open or shorted.)

Starter relay
DTC Confirmation ProcedureBCS001H2
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-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine.
4. Drive vehicle for at least 2 consecutive seconds.
5. If DTC is detected, go to CVT-58, "
Diagnostic Procedure" .
Item name Condition Display value
STRTR RLY OUTSelector lever in “P”, “N” positions. ON
Selector lever in other positions. OFF
STRTR RLY MONSelector lever in “P”, “N” positions. ON
Selector lever in other positions. OFF
BCIA0031E

CVT-58
DTC P0615 START SIGNAL CIRCUIT

TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureBCS001H4
1. CHECK STARTER RELAY
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “TRANSMISSION” with CONSULT-II and check monitor
“STRTR RLY OUT”, “STRTR RLY MON”(PNP relay) ON/OFF.
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between the TCM connector terminal and
ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING ITEM
Check the following:

Starter relay. Refer to PG-77, "STANDARDIZED RELAY" .

Open or short-circuit in the harness between TCM and the stater relay. Refer to CVT-57, "Wiring Diagram
— CVT — STSIG" .

Ground circuit for the starter relay. Refer to SC-15, "Wiring Diagram — START —" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to CVT-56, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
TerminalWire
colorItem Condition Data (Approx.)
24 R/B Starter relaySelector lever in “N”, “P” positions. Battery voltage
Selector lever in other positions. 0 V
Item name Condition Display value
STRTR RLY OUTSelector lever in “P”, “N” positions. ON
Selector lever in other positions. OFF
STRTR RLY MONSelector lever in “P”, “N” positions. ON
Selector lever in other positions. OFF
Terminal Item Condition Data (Approx.)
24Starter
relaySelector lever in “N”, “P”
positions.Battery voltage
Selector lever in other posi-
tions.0 V
SCIA2274E
SCIA2022E

TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-163
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CVT

TCM terminal data are reference values, measured between each terminal and ground.
TerminalWire
colorItem Condition Data (Approx.)
5 L CAN-H — —
6 P CAN-L — —
8GBack-up lamp
relaySelector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
13 G/W ROM assembly — —
14 L/R ROM assembly — —
15 BR/R ROM assembly — —
31 O K-LINE — —
42 W/R Sensor ground Always 0 V
46 L/O Sensor power— 5.0 V
—0 V

EC-3
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ECA
On Board Diagnosis Logic ................................... 193
DTC Confirmation Procedure ............................... 193
Wiring Diagram .................................................... 194
Diagnostic Procedure ........................................... 195
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ 197
Component Description ........................................ 197
On Board Diagnosis Logic ................................... 197
DTC Confirmation Procedure ............................... 197
Diagnostic Procedure ........................................... 198
Removal and Installation ...................................... 199
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION .............................................................. 200
Description ........................................................... 200
On Board Diagnosis Logic ................................... 200
DTC Confirmation Procedure ............................... 200
Wiring Diagram .................................................... 201
Diagnostic Procedure ........................................... 202
Component Inspection ......................................... 206
Removal and Installation ...................................... 206
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .................................................................... 207
Component Description ........................................ 207
CONSULT-II Reference Value in Data Monitor Mode
. 207
On Board Diagnosis Logic ................................... 207
DTC Confirmation Procedure ............................... 207
Wiring Diagram .................................................... 209
Diagnostic Procedure ........................................... 210
DTC P1128 THROTTLE CONTROL MOTOR ........ 213
Component Description ........................................ 213
On Board Diagnosis Logic ................................... 213
DTC Confirmation Procedure ............................... 213
Wiring Diagram .................................................... 214
Diagnostic Procedure ........................................... 215
Component Inspection ......................................... 216
Removal and Installation ...................................... 217
DTC P1217 ENGINE OVER TEMPERATURE ....... 218
System Description .............................................. 218
CONSULT-II Reference Value in Data Monitor Mode
. 219
On Board Diagnosis Logic ................................... 219
Overall Function Check ........................................ 220
Wiring Diagram .................................................... 222
Diagnostic Procedure ........................................... 224
Main 12 Causes of Overheating ........................... 227
Component Inspection ......................................... 228
DTC P1225 TP SENSOR ........................................ 229
Component Description ........................................ 229
On Board Diagnosis Logic ................................... 229
DTC Confirmation Procedure ............................... 229
Diagnostic Procedure ........................................... 230
Removal and Installation ...................................... 230
DTC P1226 TP SENSOR ........................................ 231
Component Description ........................................ 231
On Board Diagnosis Logic ................................... 231
DTC Confirmation Procedure ............................... 231
Diagnostic Procedure ........................................... 232
Removal and Installation ...................................... 232DTC P1229 SENSOR POWER SUPPLY ................233
On Board Diagnosis Logic ....................................233
DTC Confirmation Procedure ...............................233
Wiring Diagram .....................................................234
Diagnostic Procedure ...........................................236
DTC P1706 PNP SWITCH ......................................238
Component Description ........................................238
CONSULT-II Reference Value in Data Monitor Mode
.238
On Board Diagnosis Logic ....................................238
Overall Function Check ........................................238
Wiring Diagram .....................................................239
Diagnostic Procedure ...........................................240
DTC P1720 VSS ......................................................243
Description ............................................................243
CONSULT-II Reference Value in Data Monitor Mode
.243
On Board Diagnosis Logic ....................................243
DTC Confirmation Procedure ...............................243
Diagnostic Procedure ...........................................244
DTC P1805 BRAKE SWITCH .................................245
Description ............................................................245
CONSULT-II Reference Value in Data Monitor Mode
.245
On Board Diagnosis Logic ....................................245
DTC Confirmation Procedure ...............................245
Wiring Diagram .....................................................247
Diagnostic Procedure ...........................................248
Component Inspection ..........................................250
DTC P2122, P2123 APP SENSOR .........................251
Component Description ........................................251
CONSULT-II Reference Value in Data Monitor Mode
.251
On Board Diagnosis Logic ....................................251
DTC Confirmation Procedure ...............................252
Wiring Diagram .....................................................253
Diagnostic Procedure ...........................................254
Component Inspection ..........................................256
Removal and Installation ......................................257
DTC P2127, P2128 APP SENSOR .........................258
Component Description ........................................258
CONSULT-II Reference Value in Data Monitor Mode
.258
On Board Diagnosis Logic ....................................258
DTC Confirmation Procedure ...............................259
Wiring Diagram .....................................................260
Diagnostic Procedure ...........................................261
Component Inspection ..........................................264
Removal and Installation ......................................264
DTC P2135 TP SENSOR ........................................265
Component Description ........................................265
CONSULT-II Reference Value in Data Monitor Mode
.265
On Board Diagnosis Logic ....................................265
DTC Confirmation Procedure ...............................266
Wiring Diagram .....................................................267
Diagnostic Procedure ...........................................268
Component Inspection ..........................................271
Removal and Installation ......................................271

EC-6 Component Inspection ..........................................494
Removal and Installation ......................................495
DTC P0134, P0154 HO2S1 .....................................496
Component Description ........................................496
CONSULT-II Reference Value in Data Monitor Mode
.496
On Board Diagnosis Logic ....................................496
Overall Function Check ........................................497
Wiring Diagram .....................................................498
Diagnostic Procedure ...........................................501
Component Inspection ..........................................503
Removal and Installation ......................................504
DTC P0222, P0223 TP SENSOR ............................505
Component Description ........................................505
CONSULT-II Reference Value in Data Monitor Mode
.505
On Board Diagnosis Logic ....................................505
DTC Confirmation Procedure ...............................506
Wiring Diagram .....................................................507
Diagnostic Procedure ...........................................508
Component Inspection ..........................................511
Removal and Installation ......................................511
DTC P0327, P0328 KS ............................................512
Component Description ........................................512
On Board Diagnosis Logic ....................................512
DTC Confirmation Procedure ...............................512
Wiring Diagram .....................................................513
Diagnostic Procedure ...........................................514
Component Inspection ..........................................516
Removal and Installation ......................................516
DTC P0335 CKP SENSOR (POS) ..........................517
Component Description ........................................517
CONSULT-II Reference Value in Data Monitor Mode
.517
On Board Diagnosis Logic ....................................517
DTC Confirmation Procedure ...............................518
Wiring Diagram .....................................................519
Diagnostic Procedure ...........................................520
Component Inspection ..........................................523
Removal and Installation ......................................523
DTC P0340, P0345 CMP SENSOR (PHASE) .........524
Component Description ........................................524
On Board Diagnosis Logic ....................................524
DTC Confirmation Procedure ...............................525
Wiring Diagram .....................................................526
Diagnostic Procedure ...........................................529
Component Inspection ..........................................532
Removal and Installation ......................................532
DTC P0550 PSP SENSOR ......................................533
Component Description ........................................533
CONSULT-II Reference Value in Data Monitor Mode
.533
On Board Diagnosis Logic ....................................533
DTC Confirmation Procedure ...............................533
Wiring Diagram .....................................................534
Diagnostic Procedure ...........................................535
Component Inspection ..........................................537
Removal and Installation ......................................537DTC P0605 ECM .....................................................538
Component Description ........................................538
On Board Diagnosis Logic ....................................538
DTC Confirmation Procedure ................................538
Diagnostic Procedure ............................................540
DTC P1065 ECM POWER SUPPLY ........................541
Component Description ........................................541
On Board Diagnosis Logic ....................................541
DTC Confirmation Procedure ................................541
Wiring Diagram .....................................................542
Diagnostic Procedure ............................................543
D T C P1111, P 1136 IVT CONTROL SOLENOID
VALVE ......................................................................545
Component Description ........................................545
CONSULT-II Reference Value in Data Monitor Mode
.545
On Board Diagnosis Logic ....................................545
DTC Confirmation Procedure ................................545
Wiring Diagram .....................................................546
Diagnostic Procedure ............................................550
Component Inspection ..........................................551
Removal and Installation .......................................551
DTC P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR .............................................................552
Component Description ........................................552
On Board Diagnosis Logic ....................................552
DTC Confirmation Procedure ................................552
Diagnostic Procedure ............................................553
DTC P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ..............................................................555
Description ............................................................555
On Board Diagnosis Logic ....................................555
DTC Confirmation Procedure ................................555
Wiring Diagram .....................................................556
Diagnostic Procedure ............................................557
Component Inspection ..........................................561
Removal and Installation .......................................561
DTC P1124, P1126 THROTTLE CONTROL MOTOR
RELAY .....................................................................562
Component Description ........................................562
CONSULT-II Reference Value in Data Monitor Mode
.562
On Board Diagnosis Logic ....................................562
DTC Confirmation Procedure ................................562
Wiring Diagram .....................................................564
Diagnostic Procedure ............................................565
DTC P1128 THROTTLE CONTROL MOTOR .........568
Component Description ........................................568
On Board Diagnosis Logic ....................................568
DTC Confirmation Procedure ................................568
Wiring Diagram .....................................................569
Diagnostic Procedure ............................................570
Component Inspection ..........................................571
Removal and Installation .......................................572
DTC P1211 TCS CONTROL UNIT ..........................573
Description ............................................................573
On Board Diagnosis Logic ....................................573
DTC Confirmation Procedure ................................573
Diagnostic Procedure ............................................573