Warning! The vehicles covered in this Manual are equipped with airbags (SRS). When performing any work near the impact sensors, steering column or instrument panel, turn off the SRS (see the electrical connection diagrams at the end of Chapter On-board electrical equipment).
General information
All AT-equipped models are equipped with a locking system that prevents unintentional gear shifting. The locking system consists of two subsystems: a gearshift locking system and a key locking system.
Key lock system
The system prevents the key from being removed from the ignition until the selector lever is moved to the "P" position. When the key is inserted into the ignition in any position other than "P", the electromagnetic actuator is activated, making it impossible to remove the key. To remove the key, move the lever to the required ("P") position.
Gear shift lock system
The system prevents the selector lever from being moved from the "P" position to the "R" or "D" positions without depressing the foot brake pedal. The lock is also activated when the brake and accelerator pedals are depressed simultaneously. In the event of a system failure, the lever can be unlocked by inserting the key into a special slot near the lever assembly.
Examination
The following checks of the electromagnetic actuators of both locks can be carried out by an amateur mechanic at home. A more detailed diagnostics of the system should be carried out in a car service workshop.
Electromagnetic actuator for ignition key lock
1. Remove the lower section of the instrument panel trim and knee support (see Chapter Body).
2. Disconnect the 7-pin main wiring harness connector (see accompanying illustration).
3. Check the connector for conductivity between the terminals in different positions of the ignition switch. When the key is pressed into the lock, conductivity should be present between terminals 5, 6 and 7. When the key is released - between terminals 5 and 6 (about 15÷20 Ohm in the latter case).
4. Make sure that it is not possible to remove the key when battery voltage is applied to terminals 5 and 7.
5. If the key cannot be removed, then the locking system is functioning properly, otherwise the ignition switch assembly must be replaced (blockers are not produced individually).
Electromagnetic actuator for gear shift lock
1. Remove the console (see Chapter Body).
2. Disconnect the 2-pin connector of the shift lock solenoid (see accompanying illustration).
3. Using two jumper wires, momentarily connect the battery to the connector terminals (positive pole to terminal 1, negative pole to terminal 2) and check by ear that the blocker is working properly.
Attention! Violation of the polarity of the battery connection may result in failure of the diode inside the electromagnetic assembly.
- a) If there is no click, replace the solenoid assembly;
- b) If the device operates normally, but problems with blocking persist, you should try to make adjustments (see below).
4. With the electromagnetic device turned on, measure the gap between the locking lever and the recess in the locking pin (see below).
5. With the electromagnetic device switched off, make sure that the locking pin is locked by the locking lever. If the pin is not locked, adjust the electromagnetic device (see below).
Replacement and adjustment of the electromagnetic actuator
Note: The following procedure applies to the shift interlock only. For information on replacing the ignition key interlock solenoid actuator, refer to the Ignition Lock Cylinder Replacement Section (see Chapter On-board electrical equipment).
1. Remove the locking sleeve and the solenoid pin.
2. Loosen the self-locking nuts and remove the electromagnetic gear shift lock device.
Note: Nuts must be replaced without fail.
3. Installation is carried out in the reverse order. Do not tighten the new nuts completely until you have adjusted the electromagnetic device (see below).
4. To adjust the shift lock solenoid actuator, apply power to it and measure the clearance between the locking lever and the lock pin recess (see accompanying illustration). Compare the measurement results with the requirements Specifications. If necessary, adjust the gap by adjusting the position of the electromagnetic device, then finally tighten the self-locking nuts of its fastening with the required force.
Note: Be sure to replace the self-locking nuts.
5. Make sure that when the electromagnetic device is switched off, the locking pin is fixed by the locking lever (see accompanying illustration). If the finger is not locked, repeat the adjustment of the electromagnetic device position.
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