Description

Description

The 12 volt negative earth (‘-’ ve) battery is located under the RH side rear seat and is grounded to the vehicle body.

The battery positive (‘+’ ve) terminal is connected to a battery connect switch. The connect switch may be accessed by raising the rear seat cushion.

Battery Connect Switch

When the battery connect switch is in an ‘open’ state it isolates electrical power from all systems except the ‘keep alive memory’ functions in the PCMs, TCU, radio, navigation system and door modules.

This function isolates electrical power from vehicle circuits under all normal service conditions with the following exceptions:

• Before any welding or other work which may induce high voltages into the electronic control modules
• Before disconnecting any of the control modules with ‘keep alive memory’
• Before any major service task (e.g. engine removal)
• Before installing any accessory which involves modification of vehicle wiring

In the above four exceptions the battery earth (‘-’ ve) lead should be disconnected.

When the battery earth (‘-’ ve) terminal is disconnected, data held in keep alive memories will be lost.

After connecting the battery, the radio preset stations and the door window controllers will require to be reset (adaptive learning data in the PCM module will require to be re-learned by driving the vehicle for some miles in a range of driving conditions), driveability may be slightly compromised until the vehicle systems have completed their adaptive learning routines again.

Battery Disconnection and Alarm Activation

The vehicle is installed with an alarm which will be activated if the battery is disconnected. This alarm is driven by a back up battery within the alarm sounder unit.

To prevent the alarm from sounding when the battery is disconnected (for workshop procedures), disconnect the battery within 10 seconds of switching off the ignition.

Always carry out the following procedures upon connection of the battery.

• Reset the clock
• Reset the radio preset programmes.
• Reset the window maximum up and maximum down settings.

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ASTON MARTIN SHIELD EYES NO SULFURIC ACID FLUSH EYES IMMEDIATELY WITH WATER GET MEDICAL HELP FAST SPARKS FLAMES SMOKING DANGER/ POISON EXPLOSIVE GASES CAN CAUSE BLINDNESS OR SEVERE BURNS BLINDNESS OR INJURY KEEP OUT OF THE REACH OF CHILDREN DO NOT TIP: KEEP VENT CAPS TIGHT AND LEVEL
12 V 90Ah (SAE) RC 680 AMPS 2R83-10655-AA