Infiniti I30 (A33). Manual - part 22
Items
Symptom
Condition
Diagnostic Item
Reference Page
Shift Shock
Too sharp a
shock in change
from D
1
to D
2
.
ON vehicle
1. Throttle position sensor (Adjustment)
2. Line pressure test
3. Accumulator servo release
4. Control valve assembly
5. A/T fluid temperature sensor
OFF vehicle
6. Brake band
Too sharp a
shock in change
from D
2
to D
3
.
ON vehicle
1. Throttle position sensor (Adjustment)
2. Line pressure test
3. Control valve assembly
OFF vehicle
4. High clutch
5. Brake band
Too sharp a
shock in change
from D
3
to D
4
.
ON vehicle
1. Throttle position sensor (Adjustment)
2. Line pressure test
3. Control valve assembly
OFF vehicle
4. Brake band
5. Overrun clutch
Gear change
shock felt during
deceleration by
releasing accel-
erator pedal.
ON vehicle
1. Throttle position sensor (Adjustment)
2. Line pressure test
3. Overrun clutch solenoid valve
4. Control valve assembly
Large shock
changing from 1
2
to 1
1
in 1 position.
ON vehicle
1. Control valve assembly
ON vehicle
2. Low & reverse brake
Improper Shift
Timing
Too high a gear
change point from
D
1
to D
2
, from D
2
to D
3
, from D
3
to
D
4
.
ON vehicle
1. Throttle position sensor (Adjustment)
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
3. Shift solenoid valve A
4. Shift solenoid valve B
Gear change
directly from D
1
to
D
3
occurs.
ON vehicle
1. Fluid level
2. Accumulator servo release
OFF vehicle
3. Brake band
Too high a
change point from
D
4
to D
3
, from D
3
to D
2
, from D
2
to
D
1
.
ON vehicle
1. Throttle position sensor (Adjustment)
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
Kickdown does
not operate when
depressing pedal
in D
4
within kick-
down vehicle
speed.
ON vehicle
1. Throttle position sensor (Adjustment)
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTR
3. Shift solenoid valve A
4. Shift solenoid valve B
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-85