Battery Disconnect Procedure

Battery Disconnect

WARNING:
- Batteries produce explosive gases which may cause personal injury. Do not expose the battery to a naked flame. When charging or working near a battery wear protective clothing and eye protectors. Always provide adequate ventilation. Failure to follow these instructions may result in personal injury.
- Batteries contain sulphuric acid, avoid contact with skin, eyes and clothing. Shield your eyes when working near the battery to protect against possible contact of the acid solution. In case of contact with the skin or eyes, flush immediately for a minimum of fifteen minutes and seek prompt medical attention. if swallowed call a physician immediately. Failure to follow these instructions may result in personal injury.
- Audio unit key code saving devices must not be used when working on supplementary restraint systems or fuel systems. When using these devices the vehicle electrical system is still live but with a reduced current flow. Failure to follow this instruction may result in personal injury.
- The backup power supply energy must be depleted before any supplementary restraint system repairs are carried out. To deplete the backup supply energy, first disconnect the battery negative cable, then disconnect the battery positive cable and wait one minute to avoid accidental deployment and personal injury. Failure to follow this instruction may result in personal injury.

CAUTION: Make sure the engine is not running before disconnecting the battery negative cable to avoid damage to the electrical system.

NOTE:
- Before disconnecting the battery make sure that no data is required from the engine control module (ECM), as battery cable disconnection will erase any fault codes and idle/drive values held in the keep alive memory (KAM). It is not necessary to disconnect or remove electronic control modules.
- When the battery is disconnected all previous climate control assembly settings and fault codes will be lost. It is necessary to record any settings or fault codes before battery disconnection to prevent customer complaint.
- This procedure should be used to disconnect the battery while carrying out repairs that refer to the battery being disconnected

1. Obtain and record the audio unit keycode and preset radio frequencies.
2. Reposition the luggage compartment floor covering.







3. Disconnect the battery ground cable.