
AUTOMATIC TRANSMISSION AND DIFFERENTIAL 3-2
9. General Diagnostic Table
9. General Diagnostic Table
Starter motor and harness
Problem parts
Accumulator ("N" -- "D")
ATF temperature sensor
Vehicle speed sensor 1
Vehicle speed sensor 2
Throttle position sensor
Accumulator (3R)
Accumulator (2A)
Accumulator (4A)
Diagnosis switch
Duty solenoid C
Duty solenoid B
Duty solenoid A
Shift solenoid 1
Shift solenoid 2
Shift solenoid 3
Control module
Inhibitor switch
Transfer clutch
Forward clutch
Transfer valve
Detent spring
Transfer pipe
Control valve
Manual plate
Select cable
FWD switch
Select lever
Strainer
Symptom 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
Starter does not rotate when select lever is
in "P" or "N."; starter rotates when select X X X X
lever is "R", "D", "3" or "2."
Abnormal noise when select lever is in "P" or X X
"N."
Hissing noise occurs during standing starts. X
Noise occurs while driving in "D1" range.
Noise occurs while driving in "D2" range.
Noise occurs while driving in "D3" range.
Noise occurs while driving in "D4" range.
Engine stalls while shifting from one range to X
another.
Vehicle moves when select lever is in "N." X
Shock occurs when select lever is moved X X X
from "N" to "D."
Excessive time lag occurs when select lever X X
is moved from "N" to "D."
Shock occurs when select lever is moved X X X
from "N" to "R."
Excessive time lag occurs when select lever X
is moved from "N" to "R."
Vehicle does not start in any shift range X X
(engine revving up).
Vehicle does not start in any shift range
(engine stall).
Vehicle does not start in "R" range only X X X
(engine revving up).
Vehicle does not start in "R" range only X
(engine stall).
Vehicle does not start in "D" or "3" range X
(engine revving up).
Vehicle does not start in "D", "3" or "2" range X
(engine revving up).
Vehicle does not start in "D", "3" or "2" range
(engine stall).
Vehicle starts in "R" range only (engine rev- X
ving up).
Acceleration during standing starts is poor X X
(high stall rpm).
Acceleration during standing starts is poor
(low stall rpm).
Acceleration is poor when select lever is in X X
"D", "3" or "2" range (normal stall rpm).
Acceleration is poor when select lever is in X
"R" (normal stall rpm).
No shift occurs from 1st to 2nd gear. X X X X X X X
No shift occurs from 2nd to 3rd gear. X X
No shift occurs from 3rd to 4th gear. X X X X X
No "kick-down" shifts occur. X X
Engine brake is not effected when select
lever is in "3" range. X X X X
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
67
3-2 AUTOMATIC TRANSMISSION AND DIFFERENTIAL
9. General Diagnostic Table
Differential gear oil level too high or too low
Torque converter one-way clutch
ATF level too high or too low
Parking brake mechanism
Problem parts
Low & reverse clutch
One-way clutch (1-2)
One-way clutch (3-4)
Engine speed signal
Engine performance
Overrunning clutch
ATF deterioration
Lock-up damper
Differential gear
Reduction gear
Reverse clutch
Double oil seal
Planetary gear
Lock-up facing
Output shaft
Drive pinion
Crown gear
Band brake
High clutch
Drive plate
Input shaft
Final gear
Axle shaft
Seal pipe
Oil pump
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 Symptom
Starter does not rotate when select lever is
in "P" or "N."; starter rotates when select
lever is "R", "D", "3" or "2."
Abnormal noise when select lever is in "P" or
X X X "N."
X Hissing noise occurs during standing starts.
X X X X Noise occurs while driving in "D1" range.
X X X X Noise occurs while driving in "D2" range.
X X X Noise occurs while driving in "D3" range.
X X X X Noise occurs while driving in "D4" range.
Engine stalls while shifting from one range to
X X another.
Vehicle moves when select lever is in "N."
Shock occurs when select lever is moved
X from "N" to "D."
Excessive time lag occurs when select lever
is moved from "N" to "D."
Shock occurs when select lever is moved
X from "N" to "R."
Excessive time lag occurs when select lever
X X is moved from "N" to "R."
Vehicle does not start in any shift range
X X X X X X X X X X (engine revving up).
Vehicle does not start in any shift range
X (engine stall).
Vehicle does not start in "R" range only
X X (engine revving up).
Vehicle does not start in "R" range only
X X (engine stall).
Vehicle does not start in "D" or "3" range
X (engine revving up).
Vehicle does not start in "D", "3" or "2" range
(engine revving up).
Vehicle does not start in "D", "3" or "2" range
X (engine stall).
Vehicle starts in "R" range only (engine rev-
ving up).
X X Acceleration during standing starts is poor
(high stall rpm).
Acceleration during standing starts is poor
X X X (low stall rpm).
X X X Acceleration is poor when select lever is in
"D", "3" or "2" range (normal stall rpm).
Acceleration is poor when select lever is in
X X X X "R" (normal stall rpm).
X No shift occurs from 1st to 2nd gear.
X X No shift occurs from 2nd to 3rd gear.
X No shift occurs from 3rd to 4th gear.
No "kick-down" shifts occur.
Engine brake is not effected when select
lever is in "3" range.
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58
68
AUTOMATIC TRANSMISSION AND DIFFERENTIAL 3-2
9. General Diagnostic Table
Starter motor and harness
Problem parts
Accumulator ("N" -- "D")