U2

U2 CHECK CIRCUIT 539 (PK/LB)

- Remove the ABS control module, install the Rotunda Breakout Box or equivalent and Overlay. Verify Pin 1 is ground.

- Key "ON."

- Jumper Pins 1 and 19 to energize the main relay.

- Verify that the contacts are not sticking or welded.

Is the pump motor running?

> Yes
Repair the short to ground in Circuit 539 (PK,LB). Go to Pinpoint Test U4. U4

> No
Go to Pinpoint Test U4. U4