Ford Focus manuals

Ford Focus Service Manual: Battery Disconnect

WARNING:
Batteries contain sulfuric acid and produce explosive gases. Work in a well-ventilated area. Do not allow the battery to come in contact with flames, sparks or burning substances. Avoid contact with skin, eyes or clothing. Shield eyes when working near the battery to protect against possible splashing of acid solution. In case of acid contact with skin or eyes, flush immediately with water for a minimum of 15 minutes, then get prompt medical attention. If acid is swallowed, call a physician immediately. Failure to follow these instructions may result in serious personal injury.

WARNING:
Always deplete the backup power supply before repairing or installing any new front or side air bag supplemental restraint system (SRS) component and before servicing, removing, installing, adjusting or striking components near the front or side impact sensors or the restraints control module (RCM). Nearby components include doors, instrument panel, console, door latches, strikers, seats and hood latches. Refer to the Description and Operation portion of Section  501-20B for location of the RCM and impact sensor(s). To deplete the backup power supply energy, disconnect the battery ground cable and wait at least 1 minute. Be sure to disconnect auxiliary batteries and power supplies (if equipped). Failure to follow these instructions may result in serious personal injury or death in the event of an accidental deployment.

WARNING:
Always lift a plastic-cased battery with a battery carrier or with hands on opposite corners. Excessive pressure on the battery end walls may cause acid to flow through the vent caps, resulting in personal injury and/or damage to the vehicle or battery.

WARNING:
Battery posts, terminals and related accessories contain lead and lead components. Wash hands after handling. Failure to follow these instructions may result in serious personal injury.

NOTE:

When the battery (or PCM) is disconnected and connected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The charging system set point may also vary. The vehicle may need to be driven to relearn its strategy.

NOTE:

When the battery is disconnected and connected, the illumination display needs to be calibrated. After the battery is connected, rotate the dimmer switch from the lowest dim position to the full bright, dome ON position.

  1. Disconnect the battery ground terminal.
    • To connect, tighten to 9 Nm (80 lb-in).
  1. Open the positive battery terminal access panel.
  1. NOTE:

    When disconnecting the battery ground cable to interrupt power to the vehicle electrical system, disconnect the battery ground cable only. It is not necessary to disconnect the positive battery cable.

    Disconnect the positive battery terminal.

    • To connect, tighten to 9 Nm (80 lb-in).
  1. To connect, reverse the disconnect procedure.
Battery Tray
Removal and Installation Remove the battery. For additional information, refer to Battery in this section. Remove the 3 nuts from the battery tray. To install, tighten to 12 Nm (1 ...

Battery, Mounting and Cables
Removal and Installation WARNING: Batteries contain sulfuric acid and produce explosive gases. Work in a well-ventilated area. Do not allow the battery to come in contact with flames, sparks or ...

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