TROUBLE DIAGNOSIS
AT-73
D
E
F
G
H
I
J
K
L
M
A
B
AT
When you press
the accelerator
pedal and shift
speed D
4
→
D
3
or
M
4
→
M
3
the
engine idles or the
transmission slips.
ON vehicle
1. Fluid level and state
AT-51
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
AT-110
,
AT-157
3. ATF pressure switch 3 and input clutch solenoid valve
AT-223
,
AT-170
4. ATF pressure switch 1 and front brake solenoid valve
AT-219
,
AT-179
5. CAN communication line
AT-99
6. Line pressure test
AT-52
7. Control valve assembly
AT-289
OFF vehicle
8. Torque converter (ATF condition “NG” only. Refer to
AT-51, "Fluid con-
dition check"
.)
AT-307
9. Oil pump assembly (ATF condition “NG” only. Refer to
AT-51, "Fluid
condition check"
.)
AT-321
10. 3rd one-way clutch (ATF condition “NG” only. Refer to
AT-51, "Fluid
condition check"
.)
AT-323
11. Gear system (ATF condition “NG” only. Refer to
AT-51, "Fluid condi-
tion check"
.)
AT-299
12. High and low reverse clutch (ATF condition “NG” only. Refer to
AT-51,
"Fluid condition check"
.)
AT-336
13. Forward one-way clutch* (ATF condition “NG” only. Refer to
AT-51,
"Fluid condition check"
.)
AT-307
14. Forward brake* (ATF condition “NG” only. Refer to
AT-51, "Fluid con-
dition check"
.)
AT-307
When you press
the accelerator
pedal and shift
speed D
3
→
D
2
or
M
3
→
M
2
the
engine idles or the
transmission slips.
ON vehicle
1. Fluid level and state
AT-51
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
AT-110
,
AT-157
3. ATF pressure switch 6 and high and low reverse clutch solenoid valve
AT-231
,
AT-197
4. ATF pressure switch 5 and direct clutch solenoid valve
AT-227
,
AT-188
5. CAN communication line
AT-99
6. Line pressure test
AT-52
7. Control valve assembly
AT-289
OFF vehicle
8. Torque converter (ATF condition “NG” only. Refer to
AT-51, "Fluid con-
dition check"
.)
AT-307
9. Oil pump assembly (ATF condition “NG” only. Refer to
AT-51, "Fluid
condition check"
.)
AT-321
10. 3rd one-way clutch (ATF condition “NG” only. Refer to
AT-51, "Fluid
condition check"
.)
AT-323
11. Gear system (ATF condition “NG” only. Refer to
AT-51, "Fluid condi-
tion check"
.)
AT-299
12. Direct clutch (ATF condition “NG” only. Refer to
AT-51, "Fluid condi-
tion check"
.)
AT-337
13. Forward brake* (ATF condition “NG” only. Refer to
AT-51, "Fluid con-
dition check"
.)
AT-307
Symptom
Condition
Diagnostic Item
Reference page