Contents: Examination ⬇ Replacement ⬇
The automatic transmission mode selector has a special device (solenoid) that does not allow the selector to be moved from the P mode, with the ignition off and the brake pedal not pressed. If a malfunction occurs, it is necessary to find out the cause and replace the faulty elements.
Note: For clarity, the operation is shown with the selector removed.
Examination
1. Prepare the car for work (see "Preparing the car for maintenance and repair").
2. Remove the floor tunnel lining (see "Parking brake actuator lever - replacement").
3. Set the selector to position P, turn on the ignition and press the brake pedal. Using a tester in voltmeter mode, check for voltage at the solenoid terminals.
The voltage should be 12V. If there is voltage, the solenoid is faulty and must be replaced (see below).
4. If there is no voltage, use a tester in voltmeter mode to check for voltage (the conditions for checking the previous point must also be met) between the contact with the yellow wire and the contact jumper.
The tension should be 12B. If there is no voltage, the brake light switch is faulty (see "Brake light switch - checking and replacing"), the electrical wiring (see "Checking and repairing electrical circuits") or automatic transmission control unit (see "Electronic control unit of automatic transmission - replacement").
5. Using a tester in ohmmeter mode, check for the presence of a circuit (minimum resistance value) between the contact with the red wire and the contact jumper (the selector must be in position P). If the resistance is infinitely high, the microswitch is faulty (see "Automatic transmission selector position microswitches - checking and replacement") or electrical wiring (see "Checking and repairing electrical circuits").
Replacement
1. Disconnect the two connectors from the solenoid.
Material copied from this resource: OPELBOOK.ru
2. Using a TORX T25 key, unscrew the two mounting bolts and remove the solenoid.
3. Install the parts in reverse order.
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