Infiniti I35 (A33). Manual — part 24
Items
Symptom
Condition
Diagnostic Item
Reference Page
Slips/Will Not
Engage
Almost no shock
or clutches slip-
ping in change
from D
1
to D
2
.
ON vehicle
1. Fluid level
2. Accelerator pedal position sensor
3. Line pressure test
4. Accumulator servo release
5. Control valve assembly
OFF vehicle
6. Brake band
Almost no shock
or slipping in
change from D
2
to
D
3
.
ON vehicle
1. Fluid level
2. Accelerator pedal position sensor
3. Line pressure test
4. Control valve assembly
OFF vehicle
5. High clutch
6. Brake band
Almost no shock
or slipping in
change from D
3
to
D
4
.
ON vehicle
1. Fluid level
2. Accelerator pedal position sensor
3. Line pressure test
4. Control valve assembly
OFF vehicle
5. Brake band
Races extremely
fast or slips in
changing from D
4
to D
3
when
depressing pedal.
ON vehicle
1. Fluid level
2. Accelerator pedal position sensor
3. Line pressure test
4. Line pressure solenoid valve
5. Shift solenoid valve A
6. Control valve assembly
OFF vehicle
7. Brake band
8. Forward clutch
Races extremely
fast or slips in
changing from D
4
to D
2
when
depressing pedal.
ON vehicle
1. Fluid level
2. Accelerator pedal position sensor
3. Line pressure test
4. Line pressure solenoid valve
5. Shift solenoid valve A
6. Shift solenoid valve B
7. Control valve assembly
OFF vehicle
8. Brake band
9. Forward clutch
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-93
Items
Symptom
Condition
Diagnostic Item
Reference Page
Slips/Will Not
Engage
Races extremely
fast or slips in
changing from D
3
to D
2
when
depressing pedal.
ON vehicle
1. Fluid level
2. Accelerator pedal position sensor
3. Line pressure test
4. Line pressure solenoid valve
5. Shift solenoid valve B
6. Control valve assembly
OFF vehicle
7. Brake band
8. High clutch
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. Accelerator pedal position sensor
3. Line pressure test
4. Line pressure solenoid valve
5. Shift solenoid valve A
6. Shift solenoid valve B
7. Control valve assembly
OFF vehicle
8. Forward clutch
9. Forward one-way clutch
10. 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. Torque converter
7. Parking components
NOT USED
Engine cannot be
started in P and N
positions.
AT-224
ON vehicle
1. Ignition switch and starter
2. Control cable adjustment
3. Park/neutral position (PNP) switch
adjustment
Engine starts in
positions other
than P and N.
AT-224
ON vehicle
1. Control cable adjustment
2. Park/neutral position (PNP) switch
adjustment
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-94
Items
Symptom
Condition
Diagnostic Item
Reference Page
NOT USED
Transaxle noise in
P and N positions.
ON vehicle
1. Fluid level
2. Line pressure test
3. Accelerator pedal position sensor
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
OFF vehicle
5. Oil pump
6. Torque converter
Vehicle moves
when changing
into P position or
parking gear does
not disengage
when shifted out
of P position.
AT-226
ON vehicle
1. Control cable adjustment
OFF vehicle
2. Parking components
Vehicle runs in N
position.
AT-227
ON vehicle
1. Control cable adjustment
OFF vehicle
2. Forward clutch
3. Reverse clutch
4. Overrun clutch
Vehicle braked
when shifting into
R position.
ON vehicle
1. Fluid level
2. Line pressure test
3. Line pressure solenoid valve
4. Control valve assembly
OFF vehicle
5. High clutch
6. Brake band
7. Forward clutch
8. Overrun clutch
Excessive creep.
ON vehicle
1. Engine idling rpm
Engine stops
when shifting
lever into R, D,
2nd and 1st posi-
tion.
ON vehicle
1. Engine idling rpm
2. Fluid level
3. Torque converter clutch solenoid valve
4. Control valve assembly
OFF vehicle
5. Torque converter
Vehicle braked by
gear change from
D
1
to D
2
.
ON vehicle
1. Fluid level
OFF vehicle
2. Reverse clutch
3. Low & reverse brake
4. High clutch
5. Low one-way clutch
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-95
Items
Symptom
Condition
Diagnostic Item
Reference Page
NOT USED
Vehicle braked by
gear change from
D
2
to D
3
.
ON vehicle
1. Fluid level
OFF vehicle
2. Brake band
Vehicle braked by
gear change from
D
3
to D
4
.
ON vehicle
1. Fluid level
OFF vehicle
2. Overrun clutch
3. Forward one-way clutch
4. Reverse clutch
Maximum speed
not attained.
Acceleration poor.
ON vehicle
1. Fluid level
2. Park/neutral position (PNP) switch
3. 3rd position switch
4. Accelerator pedal position sensor
5. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
6. Shift solenoid valve A
7. Shift solenoid valve B
8. Control valve assembly
OFF vehicle
9. Reverse clutch
10. High clutch
11. Brake band
12. Low & reverse brake
13. Oil pump
14. Torque converter
Transaxle noise in
D, 2nd, 1st and R
positions.
ON vehicle
1. Fluid level
ON vehicle
2. Torque converter
Engine brake
does not operate
in “1st” position.
AT-257
ON vehicle
1. Park/neutral position (PNP) switch
2. Control cable adjustment
3. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
4. Control valve assembly
5. Overrun clutch solenoid valve
OFF vehicle
6. Overrun clutch
7. Low & reverse brake
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-96
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