Pressure Regulator 7 (Hang-on Clutch), Open Circuit

P2814

Diagnostic information - PDK

Pressure regulator 7 (hang-on clutch), open circuit

Diagnostic conditions
The control unit initially tests internal function sequences when the ignition is switched on (terminal 15). If they are OK, all diagnosable outputs are then tested and any faults are stored.

- Ignition on
- The following fault is not detected: P1832
- The following fault is not detected: P183A
- The following fault is not detected: P1842

Possible fault causes
- Open circuit in line between pressure regulator 7 and PDK control unit
- Pressure regulator 7 faulty
- PDK control unit faulty

Fault setting conditions
- Internal current measurement, pressure regulator 7: current consumption = 0 mA
- Line resistance between pressure regulator 7 and PDK control unit > 1 MOhm

Fault effects
- Pressure control, hang-on clutch switch-off
- Hang-on clutch opening
- Engaged gear is held until vehicle stops.
- Transmission limp-home indication in instrument cluster control unit