Defect Code 18

Defect Code 18:

Explanation:

Drop in plunger accumulator pressure

Possible cause:

Plunger accumulator leaking due to internal or external leaks

Troubleshooting:

Remove plunger hydraulic unit.

Visually inspect plunger hydraulic unit and, if necessary, renew.

Ensure plug connections are firmly fitted and check for corrosion.

Check pressure signal wire from control unit connector (X11) Pin 13 to pressure sensor connector (X18025) Pin 1 and repair if necessary.