CVT-10
PRECAUTIONS
Revision: June 20062007 Versa
6. Turn the ignition switch ON.
CAUTION:
Do not start engine.
7. Select “SELF-DIAG RESULTS”.
8. Shift the selector lever to “R” position.
9. Depress slightly the accelerator pedal (Pedal angle: 2/8) while depressing the brake pedal.
10. Perform “ERASE”.
11. Shift the selector lever to “R” position after replacing TCM. Turn the ignition switch OFF.
12. Wait approximately 10 minutes after turning the ignition switch OFF.
13. Turn the ignition switch ON while shifting the selector lever to “R” position.
CAUTION:
Do not start engine.
14. Select “CALIBRATION DATA”.
15. Check that the value on “CALIBRATION DATA” is same as the data after erasing CVT-11, "
Calibration
Data" .
Restart the procedure from step 3 if the values are not same.
16. Shift the selector lever to “P” position.
17. Check that the shift position indicator in the combination meter turns ON (It indicates approximately 1 or 2
seconds after shifting the selector lever to “P” position.)
Check the following items if the shift position indicator does not turn ON. Repair or replace the shift
position indicator if necessary.
–The harness between TCM and ROM ASSY in the transaxle assembly is open or short.
–Cable disconnected, loosen, or bent from the connector housing.
–Power supply and ground of TCM. Refer to CVT-145, "DTC P1701 TRANSMISSION CONTROL MOD-
ULE (POWER SUPPLY)" .
COMBINATION METERS
DI-11
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: June 20062007 Versa
Combination Meter Harness Connector Terminal LayoutEKS00IAQ
Terminals and Reference Value for Combination MeterEKS00I0A
LKIA0698E
Te r -
minal
No.Wire
colorItemCondition
Reference value (V)
(Approx.) Ignition
switchOperation or condition
1 L CAN-H — — —
2 P CAN-L — — —
3GVehicle speed signal output
(2-pulse)ONSpeedometer operated
[When vehicle speed is approx.
40 km/h (25 MPH)] NOTE:
Maximum voltage may be 5 V due to
specifications (connected units).
4SBVehicle speed signal output
(8-pulse)ONSpeedometer operated
[When vehicle speed is approx.
40 km/h (25 MPH)]NOTE:
Maximum voltage may be 12 V due to
specifications (connected units).
5WVehicle speed signal (without
ABS or CVT)ONSpeedometer operated
[When vehicle speed is approx.
20 km/h (12 MPH)]240 Hz
6 BR Fuel level sensor signal (+) — —Refer to DI-23, "
FUEL LEVEL SENSOR
UNIT CHECK" .
8 P O/D OFF switch ONO/D OFF switch pressed 0
O/D OFF switch released Battery voltage
9 Y Seat belt buckle switch LH ONUnfastened (ON) 0
Fastened (OFF) Battery voltage
10 SB Parking Brake switch ONParking brake applied 0
Parking brake released Battery voltage
11 LG Brake fluid level switch ONBrake fluid level low 0
Brake fluid level normal Battery voltage
12 BR Illumination control switch (+) — —Refer to LT-108, "
ILLUMINATION
OPERATION BY LIGHTING SWITCH" .
PKIC0642E
PKIC0643E
DI-12
COMBINATION METERS
Revision: June 20062007 Versa
13 B Illumination control switch (-) — —Refer to LT-108, "ILLUMINATION
OPERATION BY LIGHTING SWITCH" .
17 GWasher fluid level switch
(Canada models)ONWasher fluid level low 0
Washer fluid level normal Battery voltage
21
BGround — — 0 22
23
24 V Fuel level sensor ground (-) ON — 0
26 BVehicle speed sensor ground
(without ABS or CVT)ON — 0
27 G Battery power supply OFF — Battery voltage
28 SB Ignition switch ON or START ON — Battery voltage
29 GR Seat belt buckle switch RH ONUnfastened (ON) 0
Fastened (OFF) Battery voltage
30 G Stop lamp switch ONBrake pedal depressed Battery voltage
Brake pedal released 0
31 V A/T N-range input (with A/T) ONTransmission gear selector lever
in N positionBattery voltage
Transmission gear selector lever
other than N position0
32 W A/T P-range input (with A/T) ONTransmission gear selector lever
in P positionBattery voltage
Transmission gear selector lever
other than P position0
33 Y A/T PN output (with A/T) ONTransmission gear selector lever
in P or N position0
Transmission gear selector lever
other than P or N positionBattery voltage
35 BREngine coolant temperature
signal outputONAt idle [after warming up, approx.
80°C (176°F)]
NOTE:
The waveforms vary depending
on engine coolant temperature.
38 L Generator ONGenerator voltage low 0
Generator voltage normal Battery voltage Te r -
minal
No.Wire
colorItemCondition
Reference value (V)
(Approx.) Ignition
switchOperation or condition
SKIB3651J
EC-28Revision: June 2006
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
2007 Versa
AUTOMATIC SPEED CONTROL DEVICE (ASCD)PFP:18930
System DescriptionUBS00QB6
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE indicator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (The CRUISE indicator in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET indicator in combination meter illuminates.)
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is depressed during cruise control driving, increase the vehicle speed
until the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.
CANCEL switch is pressed
More than two switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
Brake pedal is depressed
Clutch pedal is depressed or gear position is changed to the neutral position (M/T models)
Selector lever is changed to N, P, R position (A/T and CVT models)
Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
Sensor Input signal to ECM ECM function Actuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator Stop lamp switch Brake pedal operation
ASCD clutch switch (M/T models) Clutch pedal operation
ASCD steering switch ASCD steering switch operation
Park/neutral position (PNP) switch Gear position
Combination meter Vehicle speed*
TCM (A/T and CVT models) Powertrain revolution*
EC-50Revision: June 2006
ON BOARD DIAGNOSTIC (OBD) SYSTEM
2007 Versa
ENGINE SPEED SIG P0725 0725 — — 2×AT- 11 3
A/T 1ST GR FNCTN P0731 0731 — — 2×AT- 11 7
A/T 2ND GR FNCTN P0732 0732 — — 2×AT- 1 2 1
A/T 3RD GR FNCTN P0733 0733 — — 2×AT- 1 2 4
A/T 4TH GR FNCTN P0734 0734 — — 2×AT- 1 2 8
TCC SOLENOID/CIRC P0740 0740 — — 2×AT- 1 3 4
A/T TCC S/V FNCTN P0744 0744 — — 2×AT- 1 3 9
(A/T),
CVT-110
(CVT)
L/PRESS SOL/CIRC P0745 0745 — — 2×AT- 1 4 5
PRS CNT SOL/A FCTN P0746 0746 — — 1×CVT-118
SFT SOL A/CIRC P0750 0750 — — 1×AT- 1 5 1
SFT SOL B/CIRC P0755 0755 — — 1×AT- 1 5 6
PRS CNT SOL/B FCTN P0776 0776 — — 2×CVT-121
PRS CNT SOL/B CIRC P0778 0778 — — 2×CVT-124
TR PRS SENS/A CIRC P0840 0840 — — 2×CVT-129
TR PRS SENS/B CIRC P0845 0845 — — 2×CVT-137
P-N POS SW/CIRCUIT P0850 0850 — — 2×EC-436
C L O S E D L O O P - B 1 P 11 4 8 11 4 8 — — 1×EC-442
ENG OVER TEMP P1217 1217 — — 1×EC-443
CTP LEARNING P1225 1225 — — 2 —EC-460
CTP LEARNING P1226 1226 — — 2 —EC-462
COLD START CONTROL P1421 1421 — — 2×EC-464
ASCD SW P1564 1564 — — 1 —EC-466
ASCD BRAKE SW P1572 1572 — — 1 —EC-473
ASCD VHL SPD SEN P1574 1574 — — 1 —EC-483
NATS MALFUNCTIONP1610 -
P16151610 - 1615 — — 2 —BL-212
TP SEN/CIRC A/T P1705 1705 — — 1×CVT-150
IN PULY SPEED P1715 1715 — — 2 —EC-485 (A/T),
EC-486
(CVT)
LU-SLCT SOL/CIRC P1740 1740 — — 2×CVT-158
O/R CLTCH SOL/CIRC P1760 1760 — — 2×AT- 1 6 1
STEP MOTR CIRC P1777 1777 — — 1×CVT-164
STEP MOTR FNC P1778 1778 — — 2×CVT-168
BRAKE SW/CIRCUIT P1805 1805 — — 2 —EC-488
ETC MOT PWR P2100 2100 — — 1×EC-493
ETC FUNCTION/CIRC P2101 2101 — — 1×EC-499
ETC MOT PWR P2103 2103 — — 1×EC-493
ETC MOT P2118 2118 — — 1×EC-506
ETC ACTR P2119 2119 — — 1×EC-511
APP SEN 1/CIRC P2122 2122 — — 1×EC-513
APP SEN 1/CIRC P2123 2123 — — 1×EC-513
APP SEN 2/CIRC P2127 2127 — — 1×EC-519
Items
(CONSULT-II screen terms)DTC*
1
SRT codeTe s t v a l u e /
Test limit
(GST only)TripMIL light-
ing upReference
page CONSULT-II
GST*
2ECM*3
EC-78Revision: June 2006
BASIC SERVICE PROCEDURE
2007 Versa
Throttle Valve Closed Position LearningUBS00QO9
DESCRIPTION
Throttle Valve Closed Position Learning is an operation to learn the fully closed position of the throttle valve by
monitoring the throttle position sensor output signal. It must be performed each time harness connector of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume LearningUBS00QOA
DESCRIPTION
Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific
range. It must be performed under any of the following conditions:
Each time electric throttle control actuator or ECM is replaced.
Idle speed or ignition timing is out of specification.
PREPARATION
Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
Battery voltage: More than 12.9V (At idle)
Engine coolant temperature: 70 - 95°C (158 - 203°F)
Park/neutral position (PNP) switch: ON
Electric load switch: OFF
[Air conditioner (models with A/C), headlamp, rear window defogger]
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine
is started the headlamp will not be illuminated.
Steering wheel: Neutral (Straight-ahead position)
Vehicle speed: Stopped
Transmission: Warmed-up
–Models with CONSULT-II (A/T and CVT models)
Drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “A/T” or “CVT” system indicates less
than 0.9V.
–Models without CONSULT-II (A/T and CVT models) and M/T models
Drive vehicle for 10 minutes.
TROUBLE DIAGNOSIS
EC-111
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: June 20062007 Versa
73 PIntake valve timing control
solenoid valve[Engine is running]
Warm-up condition
Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Warm-up condition
When revving engine up to 2,000 rpm
quickly7 - 10V
74 WSensor power supply
(Refrigerant pressure
sensor)[Ignition switch: ON]Approximately 5V
75 BRSensor power supply
[Crankshaft position sensor
(POS)][Ignition switch: ON]Approximately 5V
76 WEVAP control system pres-
sure sensor power supply[Ignition switch: ON]Approximately 5V
78 OSensor power supply
[Camshaft position sensor
(PHASE)][Ignition switch: ON]Approximately 5V
83 P CAN communication line[Ignition switch: ON]Approximately 1.7 - 2.3V
Output voltage varies with the
communication status.
84 L CAN communication line[Ignition switch: ON]Approximately 2.6 - 3.2V
Output voltage varies with the
communication status.
88 LG DATA link connector[Ignition switch: ON]
CONSULT-II or GST: Disconnected.Approximately 10.5V
93 O Ignition switch[Ignition switch: OFF]0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
94 R ASCD steering switch[Ignition switch: ON]
ASCD steering switch: OFFApproximately 4V
[Ignition switch: ON]
MAIN switch: PressedApproximately 0V
[Ignition switch: ON]
CANCEL switch: PressedApproximately 1V
[Ignition switch: ON]
RESUME/ACCELERATE switch: PressedApproximately 3V
[Ignition switch: ON]
SET/COAST switch: PressedApproximately 2V
95 BSensor ground
(ASCD steering switch)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
99 R Stop lamp switch[Ignition switch: OFF]
Brake pedal: Fully releasedApproximately 0V
[Ignition switch: OFF]
Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V) TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
PBIA4937J
EC-112Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)100 G ASCD brake switch[Ignition switch: ON]
Brake pedal: Slightly depressed (A/T, CVT)
Brake pedal and/or clutch pedal: Slightly
depressed (M/T)Approximately 0V
[Ignition switch: ON]
Brake pedal: Fully released (A/T, CVT)
Brake pedal and clutch pedal: Fully
released (M/T)BATTTERY VOLTAGE
(11 - 14V)
102 SBSensor power supply
(Accelerator pedal position
sensor 2)[Ignition switch: ON]Approximately 5V
103 GRAccelerator pedal position
sensor 2[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.3 - 0.6V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed1.95 - 2.4V
104 YSensor ground
(Accelerator pedal position
sensor 2)[Engine is running]
Warm-up condition
Idle speedApproximately 0V
105 G Power supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
106 PSensor power supply
(Accelerator pedal position
sensor 1)[Ignition switch: ON]Approximately 5V
108 B ECM ground[Engine is running]
Idle speedBody ground
11 0 GAccelerator pedal position
sensor 1[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully released0.6 - 0.9V
[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully depressed3.9 - 4.7V
111 RSensor ground
(Accelerator pedal position
sensor 1)[Engine is running]
Warm-up condition
Idle speedApproximately 0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)