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CVT-48
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
7. Touch “STORE”.
8. Touch “BACK”.
9. Touch “DISPLAY”.
10. Touch “PRINT”.
11. Check the monitor data printed out.
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TROUBLE DIAGNOSIS
CVT-49
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Check before Engine Is StartedUCS005YD
1. CHECK O/D OFF INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF. Wait at least 5 seconds.
4. Turn ignition switch ON. (Do not start engine.)
Does O/D OFF indicator lamp come on for about 2 seconds?
YES >> 1. Turn ignition switch OFF.
2. Perform self-diagnosis and note NG items.
Refer to CVT-60, "
SELF-DIAGNOSTIC RESULT MODE" .
3. Go to CVT-49, "
Check at Idle" .
NO >> Stop “Road Test”. Go to CVT-180, "
O/D OFF Indicator Lamp Does Not Come On" .
Check at IdleUCS005YE
1. CHECK STARTING THE ENGINE
1. Park vehicle on flat surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Turn ignition switch START.
Is engine started?
YES >> GO TO 2.
NO >> Stop “Road Test”. Mark the box on the CVT-37, "
DIAGNOSTIC WORKSHEET" . Go to CVT-181,
"Engine Cannot Be Started in “P” and “N” Position" .
2. CHECK STARTING THE ENGINE
1. Turn ignition switch ON.
2. Move selector lever to “D”, “L” or “R” position.
3. Turn ignition switch START.
Is engine started?
YES >> Stop “Road Test”. Mark the box on the CVT-37, "DIAGNOSTIC WORKSHEET" . Go to CVT-181,
"Engine Cannot Be Started in “P” and “N” Position" .
NO >> GO TO 3.
3. CHECK “P” POSITION FUNCTION
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release parking brake.
4. Push vehicle forward or backward.
5. Apply parking brake.
Does vehicle move when it is pushed forward or backward?
YES >> Mark the box CVT-182, "In “P” Position, Vehicle Moves Forward or Backward When Pushed" on
the CVT-37, "
DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
NO >> GO TO 4.
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CVT-50
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
4. CHECK “N” POSITION FUNCTION
1. Start engine.
2. Move selector lever to “N” position.
3. Release parking brake.
Does vehicle move forward or backward?
YES >> Mark the box CVT-182, "In “N” Position, Vehicle Moves" on the CVT-37, "DIAGNOSTIC WORK-
SHEET" . Continue “Road Test”.
NO >> GO TO 5.
5. CHECK SHIFT SHOCK
1. Apply foot brake.
2. Move selector lever to “R” position.
Is there large shock when changing from
“N” to “R” position?
YES >> Mark the box CVT-183, "Large Shock “N” → “R” Position" on the CVT-37, "DIAGNOSTIC WORK-
SHEET" . Continue “Road Test”.
NO >> GO TO 6.
6. CHECK “R” POSITION FUNCTION
Release foot brake for several seconds.
Does vehicle creep backward when foot brake is released?
YES >> GO TO 7.
NO >> Mark the box CVT-184, "
Vehicle Does Not Creep Backward in “R” Position" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
7. CHECK “D”, “L” POSITIONS FUNCTION
Move selector lever to “D” and “L” positions and check if vehicle creeps forward.
Does vehicle creep forward in all positions?
YES >> Go to CVT-50, "Cruise Test" .
NO >> Stop “Road Test”. Mark the box on the CVT-37, "
DIAGNOSTIC WORKSHEET" . Go to CVT-185,
"Vehicle Does Not Creep Forward in “D” or “L” Position" .
Cruise TestUCS005YF
1. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 1
1. Drive vehicle for approximately 10 minutes to warm engine oil and CVT fluid up to operating temperature.
2. Park vehicle on flat surface.
3. Move selector lever to “P” position.
4. Start engine.
5. Move selector lever to “L” position.
6. Accelerate vehicle to 2/8-way throttle depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 2.
NG >> Mark the box of CVT-186, "
Vehicle Speed Does Not
Change in “L” Position" on the CVT-37, "DIAGNOSTIC
WORKSHEET" . Continue “Road Test”. CVT fluid operating temperature: 50 - 80°C (122 - 176°F)
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TROUBLE DIAGNOSIS
CVT-51
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2. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 2
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Push overdrive control switch. (O/D OFF indicator lamp is on.)
4. Accelerate vehicle to 2/8-way throttle depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 3.
NG >> Mark the box of CVT-187, "
Vehicle Speed Does Not
Change in overdrive-off mode" on the CVT-37, "DIAG-
NOSTIC WORKSHEET" . Continue “Road Test”.
3. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 3
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Push overdrive control switch. (O/D OFF indicator lamp is off.)
4. Accelerate vehicle to 2/8-way throttle depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 4.
NG >> Mark the box of CVT-188, "
Vehicle Speed Does Not
Change in “D” Position" on the CVT-37, "DIAGNOSTIC
WORKSHEET" . Continue “Road Test”.
4. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 4
1. Park vehicle on flat surface.
2. Move selector lever to “L” position.
3. Accelerate vehicle to full depression depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 5.
NG >> Mark the box of CVT-186, "
Vehicle Speed Does Not
Change in “L” Position" on the CVT-37, "DIAGNOSTIC
WORKSHEET" . Continue “Road Test”.
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CVT-52
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
5. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 5
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Push overdrive control switch. (O/D OFF indicator lamp is on.)
4. Accelerate vehicle to full depressing depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 6.
NG >> Mark the box of CVT-187, "
Vehicle Speed Does Not
Change in overdrive-off mode" on the CVT-37, "DIAG-
NOSTIC WORKSHEET" . Continue “Road Test”.
6. CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 6
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Push overdrive control switch. (O/D OFF indicator lamp is off.)
4. Accelerate vehicle to full depression depressing accelerator
pedal constantly.
Read vehicle speed and engine speed. Refer to CVT-53,
"Vehicle Speed When Shifting Gears" .
OK or NG
OK >> GO TO 7.
NG >> Mark the box of CVT-188, "
Vehicle Speed Does Not
Change in “D” Position" on the CVT-37, "DIAGNOSTIC
WORKSHEET" . Continue “Road Test”.
7. CHECK ENGINE BRAKE FUNCTION — PART 1
1. Release accelerator pedal.
2. Check engine brake. (O/D OFF indicator lamp is off.)
Does engine braking effectively reduce speed in
“D” position?
YES >> GO TO 8.
NO >> Mark the box of CVT-189, "
Vehicle Does Not Decelerate by Engine Brake" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
8. CHECK ENGINE BRAKE FUNCTION — PART 2
1. Push overdrive control switch. (O/D OFF indicator lamp is on.)
2. Check engine brake.
Does engine braking effectively reduce speed in
“D” position?
YES >> GO TO 9.
NO >> Mark the box of CVT-189, "
Vehicle Does Not Decelerate by Engine Brake" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Continue “Road Test”.
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TROUBLE DIAGNOSIS
CVT-53
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9. CHECK ENGINE BRAKE FUNCTION — PART 3
1. Move selector lever to “L” position.
2. Check engine brake.
Does engine braking effectively reduce speed in
“L” position?
YES >> 1. Stop the vehicle.
2. Perform self-diagnosis. Refer to CVT-60, "
SELF-DIAGNOSTIC RESULT MODE" .
NO >> Mark the box of CVT-189, "
Vehicle Does Not Decelerate by Engine Brake" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Then continue trouble diagnosis.
Vehicle Speed When Shifting GearsUCS005YG
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).Engine type Throttle position Shift patternEngine speed (rpm)
At 40 km/h (25 MPH) At 60 km/h (37 MPH)
MR18DE8/8“D” position
Overdrive-off mode
“L” position3,600 - 4,400 4,400 - 5,200
2/8“D” position 1,400 - 2,400 1,500 - 2,500
Overdrive-off mode 2,200 - 3,000 2,800 - 3,600
“L” position 3,200 - 4,000 3,900 - 4,700
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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 — —
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TROUBLE DIAGNOSIS
CVT-55
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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.)