Defect Code 13

Defect Code 13:

Explanation:

Rear right plunger solenoid valve malfunction

Possible cause:

Short or break on control wire to plunger hydraulic unit

Short or break on B+ supply wire from ABS hydraulic unit to plunger hydraulic unit

Solenoid valve defective

Troubleshooting:

Switch off ignition and detach control unit connector

Measure resistance at control unit connector (X11) Pin 18/23; Nominal value: 0.8...1.8 Ohm

Measure inductance at control unit connector (X11) Pin 18/23 (see SVT Operating Manual);

Nominal value: approx. 20 mH

If necessary, remove plunger hydraulic unit, ensure plug connection is firmly fitted and check for corrosion, measure internal resistance of the solenoid valve directly at the plunger hydraulic unit.

Replace ABS/ASC+T control unit if no defect can be found on the wiring harness side.