1991 Toyota Previa Repair Question
Did you perform the test I outlined previously?
Do the following and see what you come up with.
Perform manual shifting test if no fault codes exist. Manual
shifting test determines if problem area is in electrical
circuits or a mechanical transmission problem.
MANUAL SHIFTING TEST
1. With ignition off, disconnect electrical connector for solenoids from rear of transmission.
2. Road test vehicle and ensure transmission gear changes corresponds with shift lever position. See GEAR APPLICATION table.
3. If abnormality exists, a mechanical transmission problem exists. If all gears are correct, perform trouble shooting in accordance with the symptom. Turn ignition off.
4. Reconnect electrical connector. Clear fault codes from ECT ECU memory, as disconnecting electrical connector may set a fault code.
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