Quick Check of the Main Relay and Pump Relay (E1, E2)

Quick check of the main relay and pump relay (E1, E2)

1 Unplug the control module and mass air flow sensor connectors.

2 Connect pins 17 and 21 of the control module connector to ground.

3 Check whether voltage is present at:
- The test socket
- Pin 9 of the control module connector
- Pin 2 of the mass air flow sensor
- Fuse 14

It voltage is present at these points, the main relay and fuel pump relay with their associated wiring are OK.

If it is not, continue as described in sections E1 and E2.