SPI Error

P18B0

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
- EEPROM content implausible at system start

Fault effects
- Emergency hold function
- Transmission limp-home indication