PC5

- Install breakout box. Make sure that the correct Econoline 4WABS overlay is installed.

- Jumper Pin 23 and Pin 20.

- Key ON, observe yellow ABS warning lamp and key OFF.

- Jumper Pin 21 to Pin 20.

- Key ON, observe red warning brake lamp and key OFF.

- Do both lamps illuminate?

YES -- Replace ECU. Go to PC2. PC2

NO -- Go to PC6. PC6

NO -- Only yellow ABS lamp turns ON. Go to PC7. PC7

NO -- Only red brake lamp turns ON. Go to PC10. PC10