With P1715

P1760

Diagnosis information - PDK

SPI error

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

Possible fault causes
- PDK control unit faulty

Fault setting conditions
- Internal bus error

Fault effects
- All pressure regulators, solenoid valves and shift-lock switch off
- Start enable only in position P
- No emergency program diagnosis
- Emergency hold function
- Transmission limp-home indication in instrument cluster control unit