Nissan Frontier D22. Manual - part 16
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-33
[RL4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
PFP:00000
Symptom Chart
ECS007IV
Numbers are arranged in order of the inspection.
Perform inspections starting with number one and work up.
Numbers in the OFF VEHICLE columns indicate that the transmission must be removed from the vehicle to perform the inspection.
*: Valve suspected to be malfunctioning
Symptom
Condition
Diagnostic Item
Sharp shocks in shifting from N to D position
ON VEHICLE
1. Fluid level and fluid quality
2. Control linkage
3. Engine idling speed
4. Line pressure
5. Throttle wire
6. Accumulator N-D
7. Accumulator 3-4 (N-R)
8. Control valve
* Pressure regulator valve
* Pressure modifier valve
* Accumulator control valve
* Throttle valve & detent valve
* Kickdown modifier valve
OFF VEHICLE
9. Reverse clutch
Shift shocks
When shifting from 1st to 2nd or 2nd to
3rd.
ON VEHICLE
1. Fluid level and fluid quality
2. Control linkage
3. Line pressure
4. Throttle wire
5. Accumulator 1-2
6. Accumulator 2-3
7. Control valve
* Pressure regulator valve
* Pressure modifier valve
* Accumulator control valve
When shifting from 3rd to 4th.
ON VEHICLE
1. Fluid level and fluid quality
2. Control linkage
3. Line pressure
4. Throttle wire
5. Accumulator 3-4 (N-R)
6. Control valve
* 4th speed cut valve
* Pressure regulator valve
* Pressure modifier valve
OFF VEHICLE
7. Brake band
8. Overrun clutch
When shifting from D to 2 and 1 posi-
tion.
When overdrive control switch is set
from ON to OFF
ON VEHICLE
1. Fluid level and fluid quality
2. Control linkage
3. Line pressure
4. Throttle wire
5. Control valve
* Pressure regulator valve
* Pressure modifier valve
* Throttle valve & detent valve
* Overrun clutch reducing valve
OFF VEHICLE
6. Brake band
7. High clutch
Shift shocks
When shifting from 2nd to 1st in 1 posi-
tion
ON VEHICLE
1. Fluid level and fluid quality
2. Control linkage
3. Line pressure
4. Throttle wire
5. Control valve
* Pressure regulator valve
* Pressure modifier valve
* 1st reducing valve
OFF VEHICLE
6. Low one-way clutch