TROUBLE DIAGNOSES — Diagnostic Procedure 10
AT-55flowchartApplies to A/T (Automatic Transmission) models. Diagnostic procedure for shift from D2 to D3.
Diagnostic Procedure 10
SYMPTOM: A/T does not shift from D2 to D3 at the specified speed.
Diagnostic Procedure 10 — A/T does not shift from D2 to D3 at the specified speed
1
Are Diagnostic Procedures 7 and 8 O.K.?
No
Go to Diagnostic Procedure 7 or 8.
Yes
2
— Does self-diagnosis show damage to inhibitor switch after cruise test?
Yes
Check inhibitor switch circuit. — Refer to "Self-diagnosis".
No
3
— Check throttle sensor. — Refer to section EF & EC.
N.G.
Repair or replace throttle sensor.
O.K.
4
— 1. Remove oil pan. 2. Check A/T fluid condition.
O.K.
return to step 6
N.G.
5
1. Remove control valve assembly. — Refer to "ON-VEHICLE SERVICE". 2. Check the following items: Shift valve B, Shift solenoid B, Pilot valve, Pilot filter. 3. Disassemble A/T. 4. Check the following items: Servo piston assembly, High clutch assembly, Oil pump assembly.
O.K.
6
— Check again.
N.G.
1. Perform A/T control unit input/output signal inspection. 2. If N.G., recheck A/T control unit pin terminals for damage or connection of A/T control unit harness connector.
1. Perform A/T control unit input/output signal inspection. 2. If N.G., recheck A/T control unit pin terminals for damage or connection of A/T control unit harness connector.
O.K.
INSPECTION END
See also
Diagnostic Procedure 7 · Diagnostic Procedure 8 · Self-diagnosis · ON-VEHICLE SERVICE