Current Draw, Checking

Current Draw, Checking

- Remove seat bench.







- Remove cover - 1 - with Fuel Pump (FP) control module J538 - 2 - from fuel delivery unit.







- Place the test instrument adapter/DSO (5 pin) VAS 5565 on the connector and on the fuel delivery unit.
- Connect the current clamp - A - to the red wire -with the word "current clamp" - on the test instrument adapter/DSO (5 pin) VAS 5565.
- Start the engine and run at idle speed.
- Measure current draw of fuel pump. Specified value: max. 9 amps.

NOTE: If malfunction in fuel system is sporadic, test can also be performed during a road test, but a second person is required.

If the current draw is exceeded:
- Fuel Pump (FP) faulty, replace fuel delivery unit.