Symptom Related Diagnostic Procedures

Battery Discharges (Current Draw Suspect)

Test condition:
Battery voltage OK.

Possible causes of battery drain:
- corroded and dirty contacts (connectors)
- bare wires (stripped insulation)
- Internal short circuits in components

Required for troubleshooting:
- Multimeter Fluke 83
- Connector Test Kit VW 1594
- Valid wiring diagram


NOTE: Please ensure that no run-on functions are active while measuring the battery discharge current (e.g. after-run coolant pump, coolant fan etc.)
Ensure the anti-theft code is obtained fore a radio with anti-theft coding, before disconnecting the battery. (All the vehicle equipment/radio, electric windows etc.) must be checked/ tested according to the Repair Manual and/or the Owners Manual when the battery is reconnected.





Fuse Arrangements In Fuse Bracket/Battery