Note: General information on battery maintenance and charging is provided in Chapter 1, Section 11.
1. When carrying out repair work, it is always recommended to disconnect the battery. In principle, if the battery needs to be disconnected without removing it from the car, it is enough to disconnect only the wire from the negative terminal, but to avoid any unforeseen accidents, it is recommended to disconnect both wires and cover the battery with a protective cover.
Caution: Always disconnect the negative wire first and connect it last!
2. The vehicle has several systems that require constant power supply. Disconnecting the battery inevitably leads to erasing the information about the optimal settings stored in the engine management system memory, disabling the clock, destroying the security code entered into the radio, etc. Before disconnecting the battery, carefully read the recommendations below:
- a) On models equipped with a single lock, do not forget to remove the key from the ignition and put it in your pocket - when the battery is connected, all doors will automatically lock;
- b) Disconnecting the battery will erase all the acquired settings from the ECM memory (except for basic settings). These parameters include: idle speed, maximum speed, and self-diagnostic system fault codes. If necessary, read the diagnostic data before disconnecting the battery (see Section 3). After connection, all lost settings will be restored automatically, but the control system will need some time for this, during which the engine may operate unstably in various modes;
- c) If the battery is disconnected while the anti-theft alarm is on, the system will remain in the same mode after the battery is connected. The audible alarm may sound when the battery terminals are connected;
- d) On models equipped with an on-board computer, disconnecting the battery will also delete all user data entered during operation of the computer;
- e) The infotainment system installed in the vehicle is equipped with a security code. Before disconnecting the battery, make sure that you have the correct combination to activate the equipment. The security code is specified in the operating manual of the infotainment system - it must be kept outside the vehicle. If the combination is lost, contact an authorized Opel service station for assistance. Note: On models produced since 2005, the security code is recognized by the electronic system without the owner's intervention and does not need to be entered when connecting the battery;
- f) On models equipped with the ESP system, it is necessary to match the steering wheel angle sensor by turning the steering wheel once from right to left from lock to lock with the ignition on.
Original source on the website opelbook.ru
3. You can avoid unpleasant consequences of disconnecting the battery by using an external power source - detailed rules for using such devices are given in the operating instructions. As a rule, such power sources are connected to the cigarette lighter socket, after which the standard battery can be safely disconnected. The current generated by the source should be sufficient to power the control module memory, prevent the radio from blocking and maintain the functionality of the clock.
Warning: Some of these devices can supply the system with current sufficient for normal operation of other energy consumers. Before servicing electrical components, make sure that the corresponding consumer is completely de-energized!
4. After connecting the battery, it is necessary to coordinate the electric drives of the window lifters and the upper hatch (with appropriate equipment) (See Chapter "Controls and operating techniques").
Visitor comments