AT-100
[RE4F04B]
TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
Revision: November 2006
2006 Altima
Slips/Will Not
Engage
Races extremely
fast or slips in
changing from D
4
or D
3
to D
1
when
depressing pedal.
ON vehicle
1. Fluid level
2. Throttle position sensor [accelerator pedal
position (APP) sensor] adjustment
3. Line pressure test
4. Line pressure solenoid valve
5. Control valve assembly
OFF vehicle
6. Forward clutch
7. Forward one-way clutch
8. Low one-way clutch
Vehicle will not
run in any posi-
tion.
ON vehicle
1. Fluid level
2. Control cable adjustment
3. Line pressure test
4. Line pressure solenoid valve
OFF vehicle
5. Oil pump
6. High clutch
7. Brake band
8. Low & reverse brake
9. Torque converter
10. Parking components
NOT USED
Engine cannot be
started in P and N
positions.
ON vehicle
1. Ignition switch and starter
2. Control cable adjustment
3. Park/neutral position (PNP) switch adjust-
ment
Engine starts in
positions other
than P and N.
ON vehicle
1. Control cable adjustment
2. Park/neutral position (PNP) switch adjust-
ment
Transaxle noise
in P and N posi-
tions.
ON vehicle
1. Fluid level
2. Line pressure test
3. Throttle position sensor [accelerator pedal
position (APP) sensor] adjustment
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
,
5. Engine speed signal
OFF vehicle
6. Oil pump
7. Torque converter
Vehicle moves
when changing
into P position or
parking gear does
not disengage
when shifted out
of P position.
ON vehicle
1. Control cable adjustment
OFF vehicle
2. Parking components
Items
Symptom
Condition
Diagnostic Item
Reference Page