CVT-54
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
TCM Input/Output Signal Reference ValuesUCS005YH
TCM TERMINAL CONNECTOR LAYOUT
TCM INSPECTION TABLE
Data are reference values and are measured between each terminal and ground.
SCIA0495E
TerminalWire
colorItem Condition Data (Approx.)
1GRPressure con-
trol solenoid
valve A (Line
pressure sole-
noid valve)
and Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 1.0 - 3.0 V
2LGPressure con-
trol solenoid
valve B (Sec-
ondary 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
3SBTorque con-
verter clutch
solenoid valveWhen vehi-
cle cruises in
“D” position.When CVT performs lock-up. 6.0 V
When CVT does not perform lock-up. 1.0 V
4BRLock-up select
solenoid valveSelector lever in “P” and “N” positions Battery voltage
Wait at least for 5 seconds with the selector lever in
“R”, “D” and “L” positions0 V
5 L CAN-H — —
6 P CAN-L — —
8VBack-up lamp
relaySelector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
10 R Power supply—Battery voltage
—0 V
11 L 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 connec-
tor.
*1: A circuit tester cannot be used to test this item.30.0 msec
12 Y Step motor B10.0 msec
13 G ROM assembly — —
14 Y ROM assembly — —
15 G ROM assembly — —
TROUBLE DIAGNOSIS
CVT-55
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CVT
Revision: June 20062007 Versa
19 R Power supply— Battery voltage
—0 V
20 W 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 connec-
tor.
*1: A circuit tester cannot be used to test this item.30.0 msec
21 P Step motor D10.0 msec
24 BR Starter relaySelector lever in “N” and “P”positions. Battery voltage
Selector lever in other positions. 0 V
25 B Ground Always 0 V
27 GR PNP switch 1Selector lever in “R”, “N” and “D” positions. 0 V
Selector lever in “P” and “L” positions. Battery voltage
28 YPower supply
(memory back-
up)Always Battery voltage
29 ROutput speed
sensor (Second-
ary speed sen-
sor)When driving [“D” position, 20 km/h (12 MPH)]. 570 Hz
31 LG K-LINE — —
32 YPNP switch 3
(monitor)Selector lever in “D” and “L” positions. 0 V
Selector lever in “P”, “R” and “N” positions.8.0 V - Battery
voltage
34 SB PNP switch 2Selector lever in “N”, “D” and “L” positions. 0 V
Selector lever in “P” and “R” positions.10.0 V - Battery
voltage
35 W PNP switch 3Selector lever in “D” and “L” positions. 0 V
Selector lever in “P”, “R” and “N” positions.8.0 V - Battery
voltage
36 W PNP switch 4Selector lever in “R” and “D” positions. 0 V
Selector lever in “P”, “N” and “L” positions.10.0 V - Battery
voltage
37 LTransmission
fluid pressure
sensor A (Sec-
ondary pressure
sensor)and “N” position idle 1.0 V
38 VInput speed sen-
sor (Primary
speed sensor)When driving [“L” position, 20 km/h (12 MPH)]. 1000 Hz Te r m i n a lWire
colorItem Condition Data (Approx.)
TROUBLE DIAGNOSIS
CVT-61
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CVT
Revision: June 20062007 Versa
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable —: Not applicable
BCIA0031E
Items (CONSULT-
II screen terms)Malfunction is detected when...TCM self-
diagnosisOBD-II (DTC)
Reference
page “TRANS-
MISSION”
with CON-
SULT-IIMIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
CAN COMM CIR-
CUITWhen TCM is not transmitting or receiving CAN communica-
tion signal for 2 seconds or moreU1000 U1000CVT-68
CONTROL
UNIT(CAN)When detecting error during the initial diagnosis of CAN con-
troller of TCMU1010 U1010CVT-71
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
malfunction too)P0615 —CVT-72
BRAKE SW/CIRC When the brake switch does not switch to ON or OFF P0703 —CVT-76
PNP SW/CIRCPNP switch 1-4 signals input with impossible pattern
PNP switch 3 monitor terminal open or short circuitP0705 P0705CVT-78
AT F T E M P S E N /
CIRCDuring running, the CVT fluid temperature sensor signal volt-
age is excessively high or lowP0710 P0710CVT-85
INPUT SPD SEN/
CIRCInput speed sensor (primary speed sensor) signal is not
input due to an open circuit
An unexpected signal is input when vehicle is being drivenP0715 P0715CVT-90
VEH SPD SEN/
CIR AT
Signal from vehicle speed sensor CVT [Output speed sen-
sor (Secondary speed sensor)] not input due to open or
short circuit
Unexpected signal input during runningP0720 P0720CVT-95
ENGINE SPEED
SIGTCM does not receive the CAN communication signal
from the ECM
Engine speed is too low while drivingP0725 —CVT-101
BELT DAMG Unexpected gear ratio detected P0730 —CVT-103
TCC SOLENOID/
CIRCNormal voltage not applied to solenoid due to open or short
circuitP0740 P0740CVT-105
A/T TCC S/V
FNCTN
CVT cannot perform lock-up even if electrical circuit is
good
TCM detects as irregular by comparing difference value
with slip rotation
There is big difference engine speed and primary speed
when TCM lock-up signal is onP0744 P0744CVT-110
CVT-66
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
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" .
CVT LAMP (ON/OFF) — —
SPORT MODE IND (ON/OFF) — —
MMODE IND (ON/OFF) — — Not mounted but displayed.
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 —
Not mounted but displayed.
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-72
DTC P0615 START SIGNAL CIRCUIT
Revision: June 20062007 Versa
DTC P0615 START SIGNAL CIRCUITPFP:25230
DescriptionUCS005YQ
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 ValueUCS005YR
On Board Diagnosis LogicUCS005YS
This is not an OBD-II self-diagnostic item.
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 CauseUCS005YT
Harness or connectors
(Starter relay and TCM circuit is open or shorted.)
Starter relay
DTC Confirmation ProcedureUCS005YU
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-74, "
Diagnostic Procedure" .
Item name Condition Display value
STRTR RLY OUTSelector lever in “P” and “N” positions ON
Selector lever in other positions OFF
STRTR RLY MONSelector lever in “P” and “N” positions ON
Selector lever in other positions OFF
BCIA0031E
CVT-74
DTC P0615 START SIGNAL CIRCUIT
Revision: June 20062007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureUCS005YW
1. CHECK STARTER RELAY SIGNAL
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-73, "STANDARDIZED RELAY" .
Open or short-circuit in the harness between TCM and the starter relay. Refer to CVT-73, "Wiring Diagram
— CVT — STSIG" .
Ground circuit for the starter relay. Refer to SC-12, "Wiring Diagram — START —" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
Te r m i n a lWire
colorItem Condition Data (Approx.)
24 BR Starter relaySelector lever in “N” and “P” positions Battery voltage
Selector lever in other positions 0 V
Item name Condition Display value
STRTR RLY OUTSelector lever in “P” and
“N” positionsON
Selector lever in other
positionsOFF
STRTR RLY MONSelector lever in “P” and
“N” positionsON
Selector lever in other
positionsOFF
Terminal Item Condition Data (Approx.)
24St a r t e r
relaySelector lever in “N” and “P”
positionsBattery voltage
Selector lever in other posi-
tions0 V
SCIA2274E
SCIA2022E
TROUBLE DIAGNOSIS FOR SYMPTOMS
CVT-179
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CVT
Revision: June 20062007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Te r m i n a lWire
colorItem Condition Data (Approx.)
5 L CAN-H — —
6 P CAN-L — —
8VBack-up lamp
relaySelector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
13 G ROM assembly — —
14 Y ROM assembly — —
15 G ROM assembly — —
31 LG K-LINE — —
42 LG Sensor ground Always 0 V
46 O Sensor power—5.0 V
—0 V
EC-6Revision: June 20062007 Versa On Board Diagnosis Logic ....................................485
Diagnostic Procedure ...........................................485
DTC P1715 INPUT SPEED SENSOR (PRIMARY
SPEED SENSOR) ...................................................486
Description ............................................................486
CONSULT-II Reference Value in Data Monitor Mode
.486
On Board Diagnosis Logic ....................................486
DTC Confirmation Procedure ...............................486
Diagnostic Procedure ...........................................487
DTC P1805 BRAKE SWITCH .................................488
Description ............................................................488
CONSULT-II Reference Value in Data Monitor Mode
.488
On Board Diagnosis Logic ....................................488
DTC Confirmation Procedure ...............................488
Wiring Diagram .....................................................489
Diagnostic Procedure ...........................................490
Component Inspection ..........................................492
DTC P2100, P2103 THROTTLE CONTROL MOTOR
RELAY .....................................................................493
Component Description ........................................493
CONSULT-II Reference Value in Data Monitor Mode
.493
On Board Diagnosis Logic ....................................493
DTC Confirmation Procedure ...............................493
Wiring Diagram .....................................................495
Diagnostic Procedure ...........................................496
DTC P2101 ELECTRIC THROTTLE CONTROL
FUNCTION ..............................................................499
Description ............................................................499
On Board Diagnosis Logic ....................................499
DTC Confirmation Procedure ...............................499
Wiring Diagram .....................................................500
Diagnostic Procedure ...........................................501
Component Inspection ..........................................505
Removal and Installation ......................................505
DTC P2118 THROTTLE CONTROL MOTOR .........506
Component Description ........................................506
On Board Diagnosis Logic ....................................506
DTC Confirmation Procedure ...............................506
Wiring Diagram .....................................................507
Diagnostic Procedure ...........................................508
Component Inspection ..........................................509
Removal and Installation ......................................510
DTC P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR .............................................................511
Component Description ........................................511
On Board Diagnosis Logic ....................................511
DTC Confirmation Procedure ...............................511
Diagnostic Procedure ...........................................512
DTC P2122, P2123 APP SENSOR .........................513
Component Description ........................................513
CONSULT-II Reference Value in Data Monitor Mode
.513
On Board Diagnosis Logic ....................................513
DTC Confirmation Procedure ...............................514
Wiring Diagram .....................................................515
Diagnostic Procedure ...........................................516Component Inspection .......................................... 518
Removal and Installation ....................................... 518
DTC P2127, P2128 APP SENSOR ......................... 519
Component Description ........................................ 519
CONSULT-II Reference Value in Data Monitor Mode
. 519
On Board Diagnosis Logic .................................... 519
DTC Confirmation Procedure ................................ 520
Wiring Diagram ..................................................... 521
Diagnostic Procedure ............................................ 523
Component Inspection .......................................... 525
Removal and Installation ....................................... 525
DTC P2135 TP SENSOR ........................................ 526
Component Description ........................................ 526
CONSULT-II Reference Value in Data Monitor Mode
. 526
On Board Diagnosis Logic .................................... 526
DTC Confirmation Procedure ................................ 527
Wiring Diagram ..................................................... 528
Diagnostic Procedure ............................................ 529
Component Inspection .......................................... 531
Removal and Installation ....................................... 531
DTC P2138 APP SENSOR ...................................... 532
Component Description ........................................ 532
CONSULT-II Reference Value in Data Monitor Mode
. 532
On Board Diagnosis Logic .................................... 532
DTC Confirmation Procedure ................................ 533
Wiring Diagram ..................................................... 534
Diagnostic Procedure ............................................ 536
Component Inspection .......................................... 539
Removal and Installation ....................................... 539
DTC P2A00 A/F SENSOR 1 .................................... 540
Component Description ........................................ 540
CONSULT-II Reference Value in Data Monitor Mode
. 540
On Board Diagnosis Logic .................................... 540
DTC Confirmation Procedure ................................ 541
Wiring Diagram ..................................................... 542
Diagnostic Procedure ............................................ 543
Removal and Installation ....................................... 548
ASCD BRAKE SWITCH .......................................... 549
Component Description ........................................ 549
CONSULT-II Reference Value in Data Monitor Mode
. 549
Wiring Diagram ..................................................... 550
Diagnostic Procedure ............................................ 552
Component Inspection .......................................... 557
ASCD INDICATOR .................................................. 559
Component Description ........................................ 559
CONSULT-II Reference Value in Data Monitor Mode
. 559
Wiring Diagram ..................................................... 560
Diagnostic Procedure ............................................ 561
ELECTRICAL LOAD SIGNAL ................................ 562
CONSULT-II Reference Value in Data Monitor Mode
. 562
Diagnostic Procedure ............................................ 562
FUEL INJECTOR ..................................................... 564