Infiniti G20 (P11). Manual - part 23
Item
Symptom
Condition
Diagnostic Item
Reference Page
No Up Shift
Failure to change gear from “D
1
” to “D
2
”.
ON vehicle
1. PNP switch adjustment
2. Control cable adjustment
3. Shift solenoid valve A
4. Control valve assembly
5. Vehicle speed sensor·A/T
(Revolution sensor) and vehicle
speed sensor·MTR
OFF vehicle
6. Brake band
Failure to change gear from “D
2
” to “D
3
”.
ON vehicle
1. PNP switch adjustment
2. Control cable adjustment
3. Shift solenoid valve B
4. Control valve assembly
5. Vehicle speed sensor·A/T
(Revolution sensor) and vehicle
speed sensor·MTR
OFF vehicle
6. High clutch
7. Brake band
Failure to change gear from “D
3
” to “D
4
”.
ON vehicle
1. PNP switch adjustment
2. Control cable adjustment
3. Shift solenoid valve A
4. Vehicle speed sensor·A/T
(Revolution sensor) and vehicle
speed sensor·MTR
5. A/T fluid temperature sensor
OFF vehicle
6. Brake band
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)
EC-177, “DTC
P0120
THROTTLE
POSITION SEN-
SOR”
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
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Symptom Chart (Cont’d)
AT-89