Fault 4 / Fault Code 14

4: Lateral lock Deviation in regulating values Fault code - 14 -

Possible Causes, Elimination, Remarks

During the lateral lock regulating phase the monitoring circuit in the PDAS/ABS control unit has identified excessive variations between the desired and actual values.

Possible faults

- Lock control circuit poorly bled (lock actuating hydraulics)

- Lock hydraulics leaking

- Locking valve block (solenoid valve) has a mechanical defect

- Lock cylinder does not retain preset pressure (leaking through load relief bore)

- Inadequate signal from a rear wheel speed sensor

- Fault in lateral lock plates

- Insufficient hydraulic pressure builds up at plates, for example because counter-bearing bolt at engagement lever is wrongly adjusted (only on adjustable version / engagement lever makes contact).

Procedure

1. Check lock hydraulics for external leaks. Renew defective parts if necessary.

2. Repeat bleeding procedure for lock control circuit (lock hydraulics). If new parts have been installed, the lock must be bled as appropriate.

3. Check speed sensor signals.

4. Measure thickness of plates with lock measuring cylinder (special tool 9514).

5. Check pressure at locking moment (friction value in lock).